螺纹管件尺寸对照表(PDF)
管螺纹尺寸对照表(全)
11
2.309
1.479
2寸
DN50
2
60.3
3.8
3.325
11Βιβλιοθήκη 2.3091.479
2.5寸 DN65
2.1/2
76.1
4
3.5
11
2.309
1.479
3寸
DN80
3
88.9
4
11
2.309
1.479
3.5寸
3.1/2
11
2.309
1.479
4寸
DN100
4
114.3
4
11
2.309
1.479
5寸
2 2.1/2
3 3.1/2
4
锥管螺纹的基本尺寸表（3-28）1/2PT 、
、
每25.4mm 类的牙数n
基面上的基本直径
大径（基准 直径）d=D
中径d2=D2
27
7.895
7.142
27
10.242
9.489
18
13.616
12.487
18
17.055
15.926
14
21.223
19.772
14
26.568
大径（基准 直径）d=D
中径d2=D2
小径d1=D1
0.125
7.723
7.142
6.561
0.125
9.728
9.147
8.566
0.184
13.157
12.301
11.445
0.184
16.662
15.806
14.950
0.249
20.955
螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55º）BSPP英制锥管螺纹基本尺寸及公差（牙形角55º）BSPT美制管螺纹基本尺寸及公差（牙形角60º）UN(F)公制螺纹基本尺寸及公差(牙形角60º) M55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹(BSPT)4 0 09 1 072 R5 5"138.432.30911136.951135.4721.479R66"163.832.30911162.351160.8721.479聊城市鑫茂祥管业有限公司专业经营钢管规格：5mm*1mm—1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、16Mn外径400—1600mm、壁厚20—60mm的大口径厚壁卷管，可定尺到16米及各种规格的无缝方管、异型无缝钢管等.常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管，精密无缝钢管、光亮无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
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螺纹基本尺寸对照表
14.031
13.335
13.221
12.573
12.751
13.081
13.371
13.52
14.288
11/16″×16UN
17.427
17.188
16.396
16.274
15.535
15.748
16.104
16.431
16.589
17.463
13/16″×16UN
20.599
20.361
21.0
14.0
26.7
30.2
23.2
3.5
R3”X11
87.884
86.405
84.926
20.6
24.1
17.1
29.8
33.3
26.3
3.5
R3.1/2”X11
100.330
98.851
97.372
22.2
25.7
18.7
31.4
34.9
27.9
3.5
美制管螺纹基本尺寸及公差（牙形角60º）UN(F)
19.1
21.4
16.8
2.9
R1.1/2″×11
47.803
46.324
44.845
12.7
15.0
10.4
19.1
21.4
16.8
2.9
R2″×11
59.614
58.135
56.656
15.9
18.2
13.6
23.4
25.7
21.1
2.9
R2.1/2”X11
75.184
73.705
72.226
螺纹管件尺寸表.
螺纹管件尺寸表1. 平头外丝（短管）国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug andBushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.010.六角头内外螺纹接头（补芯）公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex Head HeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 2511.同径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 10 65 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/420 38 21 79 18 14 80 3 20 40 --- 100 70 63 80×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×253×120402585231912. 单头螺纹管箍公称通径Nominal Diameter 管箍、管帽长度 The Length of Coupling and Cap 外径 Outside Diameter 管帽顶厚 End Wall Thickness 螺纹长度 Length of Thread EFD Cmin DN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB B L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS 6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 1004121121687514015922.028.527.533.013.异径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 1065 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/4 20 38 21 79 18 1480 3 20 40 --- 100 70 6380×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×25 3×1 20 40 25 85 23 1914.螺纹活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominal Dmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.015.双头螺纹管帽公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.016.承插活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominalDmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.017. 圆头管塞公称通径Nominal Diameter 螺纹长度 Length of Thread 方头管塞Square Head Plug 圆头管塞 Round Head Plug 六角头管塞和接头 Hex Head Plug and Bushing 方头高度 Height of Square 平面宽度 Width Of Flats 圆头直径 Diameter of Round Head全长 Length 平面宽度 Width Of Flats 六角头高度 Hex Head Height DN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100432.02563.511476117.51325。
螺纹基本尺寸对照表.
英制管螺纹基本尺寸及公差（牙形角55o）BSPP螺纹代号G1/8″×28G1/4″×19G3/8″×19G1/2″×14G5/8″×14G3/4″×14G1″×11G1.1/4″×11G1.1/2″×11G2″×11G2.1/2”X11G3”X11G3.1/2”X11基本直径内螺纹外螺纹A级B级大径中径小径中径公差小径公差中径公差大径公差中径公差大径公差9.7289.1478.566+0.170+0.28200000-0.107-0.214-0.214-0.214 13.15712.30111.445+0.125+0.445-0.125-0.250-0.2500-0.250 16.66215.80614.950+0.125+0.445000000-0.125-0.250-0.250-0.250 20.95519.79318.631+0.142+0.541000000-0.142-0.284-0.284-0.284 22.91121.74920.587+0.142+0.541000000-0.142-0.284-0.284-0.284 26.44125.27924.117+0.142+0.541000000-0.142-0.284-0.284-0.284 33.24931.77030.291+0.180+0.640000000-0.180-0.360-0.360-0.360 41.91040.43138.952+0.180+0.640000000-0.180-0.360-0.360-0.360 47.80346.32444.854+0.180+0.640000000-0.180-0.360-0.360-0.360 59.61458.13556.656+0.180+0.640000000-0.180-0.360-0.360-0.360 75.18473.70572.226+0.217+0.640000000-0.217-0.434-0.434-0.434 87.88486.40584.926+0.217+0.640000000-0.217-0.434-0.434-0.434 100.33098.85197.372+0.217+0.640000000-0.217-0.434-0.434-0.434英制锥管螺纹基本尺寸及公差（牙形角55o）BSPT基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向螺纹代号大径中径小径基本最大最小基本最大最小位移误差（±mm）R1/8″×289.7289.1478.566 4.0 4.9 3.1 6.57.4 5.6 1.1R1/4″×1913.15712.30111.445 6.07.3 4.79.711.08.4 1.7 R3/8″×1916.66215.80614.950 6.47.7 5.110.111.48.8 1.7R1/2″×1420.95519.79318.6318.210.0 6.413.215.011.4 2.3R3/4″×1426.44125.27924.1179.511.37.714.516.312.7 2.3 R1″×1133.24931.77030.29110.412.78.116.819.114.5 2.9R1.1/4″×1141.91040.43138.95212.715.010.419.121.416.8 2.9R1.1/2″×1147.80346.32444.84512.715.010.419.121.416.8 2.9 R2″×1159.61458.13556.65615.918.213.623.425.721.1 2.9 R2.1/2”X1175.18473.70572.22617.521.014.026.730.223.2 3.5 R3”X1187.88486.40584.92620.624.117.129.833.326.3 3.5R3.1/2”X11100.33098.85197.37222.225.718.731.434.927.9 3.5美制管螺纹基本尺寸及公差（牙形角60o）UN(F)螺纹代号7/16″×20UNF1/2″×20UNF9/16″×18UN F3/4″×16UNF7/8″×14UNF1-1/16″×12UN1-5/16″×12UN1-5/8″×12UN1-7/8″×12UN2-1/2″×12UN9/16″×18UNF11/16″×16UN13/16″×16UN1″×14UNF1-3/16″×12UN1-7/16″×12UN1-11/16″×12UN2″×12UN5/8″×18UNF1-1/16″×14UN外螺纹内螺纹公差等级公差等级2A2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大JIC螺纹11.07910.87410.25410.1479.5689.72810.03310.28710.42411.11312.66712.46111.84111.73211.15611.32811.60811.87512.01712.7 14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05 22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225 26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988 33.29433.00531.9231.77330.77531.03931.49631.96332.15433.338 41.22940.9439.88539.70538.7138.98939.44639.90140.09441.275 47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625 63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS螺纹14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 17.42717.18816.39616.27415.53515.74816.10416.43116.58917.463 20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638 25.35725.09524.17824.03623.19523.44423.82524.22124.40725.4 30.11929.8328.74528.59827.627.86428.32128.78828.97930.163 36.46736.17735.09334.94333.94734.21434.67135.13835.33136.513 42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863 50.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE螺纹15.83915.61814.92314.80314.16114.35114.68114.95815.1115.875 26.94726.68325.74325.60824.7424.96825.37525.78325.96126.987其余美制螺纹9/16″×16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.288 7/8″×12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.225 2-1/4″×12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注：UNC粗牙螺纹系列，UNF细牙螺纹系列，UNEF超细牙螺纹系列，UN不变螺距系列布锥管螺纹基本尺寸及公差(牙形角60o)NPT螺纹代号基面上的直径螺纹长度大径中径小径有效长度管端至基面长Z1/8″×2710.2729.5198.7667 4.572 Z1/4″×1813.57212.44311.3149.5 5.080 Z3/8″×1817.05515.92614.79710.5 6.096 Z1/2″×1421.22319.77218.32113.58.028Z3/4″×1426.56825.11723.666148.611Z1″×11.533.22831.46129.69417.510.160 Z1.1/4″×11.541.98540.21838.4511810.688Z1.1/2″×11.548.05446.28744.52018.510.688 Z2″×11.560.09258.32556.5581911.074公制螺纹基本尺寸及公差(牙形角60o)M基本直径螺纹代号大径中径小径M10X1109.3508.917 M12X11211.35010.917 M14X11413.35012.917 M12X1.251211.18810.647 M14X1.251413.18812.647 M12X1.51211.02610.376 M14X1.51413.02612.376 M16X1.51615.02614.376 M18X1.51817.02616.373 M20X1.52019.02618.376 M22X1.52221.02620.376 M24X1.52423.02622.376 M26X1.52625.02624.376 M27X1.52726.02625.376 M30X1.53029.02628.376 M33X1.53332.02631.376 M36X1.53635.02634.376 M39X1.53938.02637.376 M42X1.54241.02640.376 M27X22725.70124.835 M30X23028.70127.835 M33X23331.70130.835 M36X23634.70133.835 M39X23937.70136.835 M42X24240.70139.835 M45X24543.70142.835 M52X25250.70149.835 M60X26058.70157.835 M64X26462.70161.835 M72X27270.70169.835内螺纹外螺纹公差等级公差等级6H7H6g中径公差小径公差中径公差小径公差中径公差大径公差+0.150+0.236+0.190+0.300-0.026-0.026 0000-0.138-0.206 +0.160+0.236+0.200+0.300-0.026-0.026 0000-0.144-0.206 +0.160+0.236+0.200+0.300-0.026-0.026 0000-0.144-0.206 +0.180+0.265+0.224+0.335-0.028-0.028 0000-0.160-0.240 +0.180+0.265+0.224+0.335-0.028-0.028 0000-0.160-0.240 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.31855°圆锥管螺纹基本尺寸比较表最新下载 -汇兴达55°圆锥管螺纹基本尺寸比较表最新下载 -汇兴达55°圆锥管螺纹(BSPT)螺纹基本尺寸大径螺距每英寸中小径径外mm牙型高度代号R 1 / 1 6 R 1 / 8R 1 / 4R 3 / 8mm英寸d=D1/17.76"231/89.7"281/413."1573/816."662mmp0.9070.9071.3371.337牙数tpi28281919螺d2H1纹=Dd236.7.15420.581618.9.150.581476611.12.40.8563014514.15.90.8568065R11/220.1.819.14/ "955147932R33/426.1.8 25.14/ "441142794R33. 2.331.11"091124977R112.340.41.11/40911910431/ "4R112.346.47.11/20911803324/ "2R 59. 2.3 58.22"09116141351 8. 6 1.1623 12 4. 1 1.1621 73 0. 2 1.4799 13 8. 9 1.4795 24 4. 8 1.4794 55 6.6 1.4795 6R275.2.373.2111/21840970517 2. 21.479/"2R87. 2.33"88411309R1132.34".0311409R1382.35".4311509R1632.36".831160092684.86.9 1.47940526111110..55 1.479172131365..95 1.4794172161620..35 1.4798172聊城市鑫茂祥管业有限企业专业经营钢管规格：5mm*1mm—1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、16Mn外径400—1600mm、壁厚20—60mm的大口径厚壁卷管，可定尺到16米及各样规格的无缝方管、异型无缝钢管等.常备钢管种类有:结构用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设施用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管，精细无缝钢管、光明无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
螺纹管件尺寸表
DN NPS LB LB LB LB LB LB LB LB LB LB LB LB NPT Rc
Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS
6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.5
32 1.1/4
67
67
44
46
57
64
9.5 11.0 17.0 18.0
40 1.1/2
76
76
44
48
64
76 11.0 12.5 18.0 18.5
50
2
86
86
48
51
76
92 12.5 16.0 19.0 19.0
65 2.1/2
92
92
60
64
92
108 16.0 19.0 23.5 29.0
40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5
50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0
65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0
1. 平头外丝（短管）
螺纹管件尺寸表
国际通用系列钢管(英制管) Inch Pipe 公称通径
Nominal Diameter
DN
NPS
8
1/4
10
3/8
15
1/2
20
3/4
管螺纹的基本尺寸表
管螺纹的基本尺寸表英制管螺纹内径外径对照表（换算成公制得对照表）尺寸代号每寸牙数大径中径小径建议底孔基准距离牙数1/8 27 10.242 9.489 8.736 φ8.6 4.102 4.36 1/4 18 13.616 12.487 11.358 φ11.1 5.786 4.10 3/8 18 17.055 15.926 14.797 φ14.5 6.096 4.32 1/2 14 21.223 19.772 18.321 φ17.9 8.128 4.48 3/4 14 26.568 25.117 23.666 φ23.2 8.611 4.75 1 11.5 33.228 31.461 29.694 φ29.2 10.160 4.601-1/4 11.5 41.985 40.218 38.451 φ37.9 10.668 4.831-1/2 11.5 48.054 46.287 44.520 φ43.9 10.668 4.83管螺纹的基本尺寸表（3-29）G1/2 、ZG1/2 、锥管螺纹的基本尺寸表（3-28）1/2PT 、1/2NPT 、A型美制螺纹（UNF）常用规格外螺纹内螺纹-4 9/16"-19牙14.28 13.08-6 11/16''-16 17.46 16.1-8 13/16''-16 20.64 19.28-10 1''-14 25.40 23.57-12 1(3/16)''-12 30.00 28.32-16 1(7/16)''-12 36.51 34.67-20 1(11/16)''-12 42.86 41.02英制,公制螺纹对照表.尺寸代号每英寸牙数螺距螺纹直径（in) n p 大径D、d 小径D1、d11/16 28 0.907 7.723 6.5611/8 28 0.907 9.728 8.5661/4 19 1.337 13.157 11.4453/8 19 1.337 16.662 14.951/2 14 1.814 20.955 18.6315/8 14 1.814 22.911 20.5873/4 14 1.814 26.441 24.117 7/8 14 1.814 30.201 27.877 1 11 2.309 33.249 30.291 1-1/8 11 2.309 37.897 34.939 1-1/4 11 2.309 41.91 38.952 1-1/2 11 2.309 47.803 44.845 1-3/4 11 2.309 53.746 50.788 2 11 2.309 59.614 56.656 2-1/4 11 2.309 65.71 62.752 2-1/2 11 2.309 75.184 72.226 2-3/4 11 2.309 81.534 78.578 3 11 2.309 87.884 84.926 3-1/2 11 2.309 100.33 97.3724 11 2.309 113.03 110.0725 11 2.309 138.43 135.4726 11 2.309 163.83 160.872 注：1in=25.4mm1、用螺纹密封的管螺纹其标记及各种螺纹的特征代号规定如下：Rc—圆锥内螺纹55度Rp—与圆锥外螺纹配合的圆柱内螺纹R—圆锥外螺纹标准规定将螺纹尺寸代号写在特征代号之后，若螺纹为械旋应再加写左旋代号LH，具体示例如下：圆锥内螺纹：Rc1/2左旋圆柱内螺纹：Rp1/2—LH圆柱内螺纹与圆锥外螺纹的配合：Rp2/R2左旋B级外螺纹：G1/2B—LH螺纹副G1/2G1/2A内螺纹：G1/2。
螺纹基本尺寸对照表-新版.pdf
螺纹基本尺寸对照表-新版.pdf螺纹基本尺寸对照表（以及螺纹底孔相关尺寸）参照机械设计师首册编制OPMSM2005年7月螺纹代号Thread code一、英制螺纹（螺纹牙型角55度）BSW——英国标准惠氏螺纹（粗牙）BSF——英国标准惠氏螺纹（细牙）G——直管螺纹(外螺纹分A、B两级即在螺纹中径公差有所区别，丝锥分G、G-D)非密封性螺纹R——锥管外螺纹（旧代号ZG；KG）RC——锥管内螺纹（旧代号ZG；KG）二、美制螺纹（螺纹牙型角60度）UNC——统一制粗牙螺纹（代替NC）UNF——统一制细牙螺纹（代替NF）UNEF——统一制超细牙螺纹UN——统一制不变螺距螺纹UNS——统一制特殊螺纹三、美制螺纹（螺纹牙型角60度）NPT——一般用途锥管螺纹（旧代号Z、K）（斜角为1°47'即1：16）NPSC——管接头直管内螺纹NPSM——设备上自由配合，机械连接用直管螺纹NPTF——干密封锥管螺纹NPSF——干密封燃料内螺纹NGT——气瓶用螺纹四、米制螺纹（螺纹牙型角60度，斜角为1°47'24"即1：16）ZM——米制锥管螺纹五、其它螺纹SM——缝纫机螺纹（螺纹牙型角60度，平顶、螺纹底部为园弧形）PZ——气瓶螺纹5V1至20V1——气门芯螺纹（螺纹牙型角60度，平顶、螺纹底部为园弧形）六、管螺纹（螺纹牙型角55度，螺纹顶、底部为园弧形约）RC——圆锥内螺纹（螺纹牙型角55度，斜角为1°47'即1：16）RP——圆柱内螺纹（螺纹牙型角55度）R——圆锥外螺纹（螺纹牙型角55度，斜角为1°47'即1：16）七、普通螺纹（螺纹牙型角60度）M——普通螺纹代号八、特殊螺纹Tr——梯形螺纹（螺纹牙型角30度）B——锯齿形螺纹（牙型角30×30度）螺纹公称直径 d 螺距P钻头直径 d铜不锈钢20．4 1．6 1．6 0．25 1．75 1．7530．5 2．5 2．5 0．35 2．15 2．154 0．7 3．3 3．3 0．5 3．5 3．55 0．8 4．1 4．2 0．5 4．5 4．561 4．9 5 0．75 5．2 5．28 1．25 6．6 6．71 7 7 0．75 7．1 7．2101．5 8．4 8．5 1．25 8．6 8．71 6．9 7 0．75 7．1 7．212 1．75 10．1 10．2 1．5 10．4 10．5 1．25 10．6 10．71 10．9 11142 11．8 12 1．5 12．4 12．5 1 12．9 13162 13．8 14 1．5 14．4 14．5 1 14．9 1518 2．5 15．3 15．5 2 15．8 16 1．5 16．4 16．5 1 16．9 1720 2．5 17．3 17．5 2 17．8 18 1．5 18．4 18．5 1 18．9 1922 2．5 19．3 19．52 19．8 20 1．5 20．4 20．5 1 20．9 21243 20．7 21 2 21．8 22 1．5 22．4 22．5 1 22．9 23非螺纹密封英制英制锥管螺纹英制锥螺纹螺纹直径牙数钻头直径螺纹直径牙数钻头直径螺纹直径牙数钻头直径1/8 28 8．8 1/8 28 8．4 1/8 27 8．6 1/4 19 11．7 1/4 19 11．2 1/4 18 11．1 3/8 19 15．2 3/8 19 14．7 3/8 18 14．5 1/2 14 18．9 1/2 14 18．3 1/2 14 17．9 3/4 14 24．4 3/4 14 23．6 3/4 14 23．21 11 30．6 1 14 29．7 1 11．5 29．2 1-1/4 11 39．2 1-1/4 11 38．3 1-1/4 11．5 37．9 1-3/8 11 41．6 1-1/2 11 44．1 1-1/2 11．5 43．9 1-1/2 11 45．1 2 1155．8 2 11．5 56螺距(t) 螺纹长度基面上螺纹直径牙型高度(h1) 有效长度基面长度外径(d) 中径(d2) 内径(d1)0.91 9 4.5 9.73 9.15 8.57 0.581.34 11 6 13.16 12.3 11.45 0.861.34 12 6 16.66 15.81 14.95 0.861.81 15 7.5 20.96 19.79 18.63 1.161.81 17 9.5 26.44 25.28 24.12 1.162.31 19 11 33.25 31.77 30.29 1.482.31 22 13 41.91 40.43 38.95 1.482.31 23 14 47.81 46.33 44.85 1.482.31 26 16 59.62 58.14 56.66 1.482.31 30 18.5 75.19 73.71 72.23 1.482.31 32 20.5 87.89 86.41 84.93 1.482.31 38 25.5 113.03 111.56 110.08 1.48本螺纹基面上各直径等于圆柱螺纹的各相应直径基面上螺纹内径 d1 = d - 1.28t3/4″ = 26.44 - 1.28 * 1.81 = 24.12斜角（φ）1°47'24″锥角（2tgφ)=1:16公称直径（英寸）每英寸牙数（n)螺距(t)管子外径（d) 管接头螺纹内径（d1') 牙型高度(h1) 名义尺寸最大外径最小外径名义尺寸最大内径最小内径1/8 28 0.919.73 9.68 9.38 8.57 8.92 8.67 0.581/4 19 1.34 13.1613.1 12.74 11.4511.84 11.56 0.863/8 19 1.34 16.6616.6 16.24 14.9515.35 15.06 0.861/2 14 1.81 20.9620.89 20.5 18.6319.05 18.75 1.165/8 14 1.81 22.922.85 22.46 20.5 921.01 20.71 1.16 3/4 14 1.81 26.4426.38 25.97 24.1 224.57 24.25 1.16 7/8 14 1.81 30.2 30.14 29.73 27.8828.33 28.01 1.16 1 11 2.31 33.2533.18 32.75 30.2 930.79 30.43 1.48 1-1/4 11 2.31 41.9141.84 41.36 38.9 539.46 39.1 1.48 1-3/8 11 2.31 44.344.26 43.78 41.3741.87 41.51 1.481-1/2 11 2.31 47.8147.74 47.21 44.8545.4 45 1.481-3/4 11 2.31 53.7553.67 53.14 50.7951.34 50.94 1.482 11 2.359.659.54 59.01 56.657.21 56.81 1.48 1 2 62-1/2 11 2.31 75.1975.11 74.54 72.2372.83 72.39 1.483 11 2.3187.8987.8 87.19 84.9385.58 85.1 1.48外径d由公称直径所决定螺纹内径 d1 = d - 1.28t斜角（φ）1°47'24″锥角（2tgφ)=1:16公称直径（英寸）每英寸牙数（n)螺距(t)螺纹长度基面上螺纹直径牙型高度(h1) 有效长度基面长度外径(d)中径(d2)内径(d1)1/16 27 0.94 6.5 4.06 7.9 7.14 6.39 0.75 1/8 27 0.94 7 4.57 10.27 9.52 8.77 0.75 1/4 18 1.41 9.5 5.08 13.57 12.44 11.31 1.13 3/8 18 1.41 10.5 6.1 17.06 15.93 14.8 1.13 1/2 14 1.81 13.5 8.13 21.22 19.77 18.32 1.45 3/4 14 1.81 14 8.61 26.57 25.12 23.67 1.451 11-1/2 2.21 17.5 10.16 33.23 31.46 29.69 1.77 1-1/4 11-1/2 2.21 18 10.67 41.99 40.22 38.45 1.771-1/2 11-1/2 2.21 18.5 10.67 48.05 46.29 44.52 1.772 11-1/2 2.21 19 11.07 60.09 58.33 56.56 1.77外径d由公称直径所决定牙型高度 h1=0.8t基面上螺纹内径 d1 = d - 1.6t3/8″ = 17.06mm d1=17.06 - 1.6 * 1.41 = 14.80斜角（φ）1°47'24″锥角（2tgφ)=1:16公称直径每寸牙数螺距(t)外螺纹外径内螺纹内径选用钻头名义尺寸最大尺寸最小尺寸名义尺寸最大尺寸最小尺寸3/16″24 1.06 4.63 4.5 4.24 3.56 3.97 3.71 Φ3.7 1/4″20 1.27 6.2 6.05 5.75 4.91 5.39 5.1 Φ5.1 5/16″18 1.41 7.78 7.62 7.31 6.34 6.86 6.55 Φ6.5 3/8″16 1.59 9.36 9.2 8.9 7.73 8.29 7.97 Φ7.9 7/16″14 1.81 10.93 10.75 10.45 9.06 9.67 9.33 Φ9.3 1/2″12 2.12 12.5 12.311.9 10.3 10.96 10.61 Φ10.5 9/16″12 2.12 14.08 13.87 13.47 11.8912.56 12.2 Φ12.15/8″11 2.31 15.65 15.43 15.03 13.26 13.94 13.6 Φ13.5 3/4″10 2.54 18.81 18.57 18.17 16.17 16.92 16.54 Φ16.4 7/8″9 2.82 21.9621.7 21.2 19.03 19.82 19.45 Φ19.5 1″8 3.18 25.11 24.82 24.32 21.822.67 22.27 Φ22 1-1/8″7 3.63 28.25 27.93 27.33 24.46 25.43 24.991-1/4″7 3.63 31.43 31.09 30.49 27.64 28.59 28.181-3/8″ 6 4.23 34.56 34.2 33.6 30.13 31.23 30.761-1/2″ 6 4.23 37.73 37.36 36.76 33.31 34.38 33.941-3/4″ 5 5.08 44.02 43.59 42.79 38.7 39.95 39.451-7/8″ 4.5 5.64 47.15 46.68 45.88 41.23 42.58 42.06 2″ 4.5 5.64 50.32 49.84 49.04 44.41 45.79 45.25内螺纹（d＇）公称直径3/4″=19.05 mm外螺纹（d1）内径 d＇-1.28 t 3/4″=19.05 -1.28 * 2.54=15.79 mm外螺纹（d1＇）内径d＇-1.134 t 3/4″=19.05 -1.134 * 2.54=16.16 mm公称直径（英寸）每英寸牙数（n)螺距(t) 外螺纹外径内螺纹内径名义尺寸名义尺寸d =d'-0.075t-0.0511/16 14 1.814 17.28 15.43/8 20 1.27 9.38 8.08 7/8 11 2.31 22 19.6 5/8 14 1.81 15.69 13.82 3/4 12 2.12 18.84 16.65 1/4 26 0.976 6.23 5.24 1/2 16 1.587 12.53 10.9 1 10 2.54 25.15 22.52内螺纹d'（公称直径）外螺纹d1=内径=d'-1.28t 3/4″=19.05-1.28*2.116=16.34内螺纹d1=内径=d'-1.134t 3/4″=19.05-1.134*2.116=16.653/4″=12牙/英寸 t=2.116。
各国标准螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55º）BSPP英制锥管螺纹基本尺寸及公差（牙形角55º）BSPT美制管螺纹基本尺寸及公差（牙形角60º）UN(F)公制螺纹基本尺寸及公差(牙形角60º) M55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹(BSPT)2 R5 5"138.432.30911136.951135.4721.479R66"163.832.30911162.351160.8721.479聊城市鑫茂祥管业有限公司专业经营钢管规格：5mm*1mm—1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm.壁厚16mm-100mm.外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、16Mn外径400—1600mm、壁厚20—60mm 的大口径厚壁卷管.可定尺到16米及各种规格的无缝方管、异型无缝钢管等.常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管.精密无缝钢管、光亮无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
适用于工程、煤矿、纺织、电力、锅炉、机械、军工等各个领域。
公司以良好的信用、优质的产品、雄厚的实力、低廉的价钱享誉全国30多个省、市、自治区、直辖市及国外.产品深得用户依赖。
管螺纹的基本尺寸表(2010-10-25 15:57:35)转载▼标签：杂谈表（1）螺纹基本尺寸G1/2 、ZG1/2 (单位:mm)尺寸代号每25.4mm类的牙数n螺距p 牙型高度h圆弧半径r≈基面上的基本直径基准距离有效螺纹长度大径（基准直径）d=D中径d2=D2小径d1=D11/16 28 0.907 0.581 0.125 7.723 7.142 6.561 4.0 6.5 1/8 28 0.907 0.581 0.125 9.728 9.147 8.566 4.0 6.5 1/4 19 1.337 0.586 0.184 13.157 12.301 11.445 6.0 9.7 3/8 19 1.337 0.586 0.184 16.662 15.806 14.950 6.4 10.1 1/2 14 1.814 1.162 0.249 20.955 19.793 18.631 8.2 13.2锥管螺纹的基本尺寸表（3-28）1/2PT 、1/2NPT表（2）螺纹基本尺寸 (单位:mm)螺纹标准的一种.按外形分圆柱、圆锥两种；按牙型角分55°、60°两种。
螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55º）BSPP英制锥管螺纹基本尺寸及公差（牙形角55º）BSPT美制管螺纹基本尺寸及公差（牙形角60º）UN(F)布锥管螺纹基本尺寸及公差(牙形角60º)NPT公制螺纹基本尺寸及公差(牙形角60º)M55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹(BSPT)聊城市鑫茂祥管业XX专业经营钢管规格：5mm*1mm—1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、16Mn外径400—1600mm、壁厚20—60mm的大口径厚壁卷管，可定尺到16米及各种规格的无缝方管、异型无缝钢管等.常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管，精密无缝钢管、光亮无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
适用于工程、煤矿、纺织、电力、锅炉、机械、军工等各个领域。
公司以良好的信用、优质的产品、雄厚的实力、低廉的价钱享誉全国30多个省、市、自治区、直辖市及国外，产品深得用户依赖。
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螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55º） BSPP螺纹代号基本直径内螺纹外螺纹大径中径小径中径公差小径公差A级B级中径公差大径公差中径公差大径公差G1/8″×289.7289.1478.566+0.170+0.282-0.107-0.214-0.214-0.214G1/4″×1913.15712.30111.445+0.125+0.445-0.125-0.250-0.2500-0.250G3/8″×1916.66215.80614.950+0.125+0.445-0.125-0.250-0.250-0.250G1/2″×1420.95519.79318.631+0.142+0.541-0.142-0.284-0.284-0.284G5/8″×1422.91121.74920.587+0.142+0.541-0.142-0.284-0.284-0.284G3/4″×1426.44125.27924.117+0.142+0.541-0.142-0.284-0.284-0.284G1″×1133.24931.77030.291+0.180+0.640-0.180-0.360-0.360-0.360G1.1/4″×1141.91040.43138.952+0.180+0.640-0.180-0.360-0.360-0.360G1.1/2″×1147.80346.32444.854+0.180+0.640-0.180-0.360-0.360-0.360G2″×1159.61458.13556.656+0.180+0.640-0.180-0.360-0.360-0.360G2.1/2”X1175.18473.70572.226+0.217+0.640-0.217-0.434-0.434-0.434G3”X1187.88486.40584.926+0.217+0.640-0.217-0.434-0.434-0.434G3.1/2”X11100.33098.85197.372+0.217+0.640-0.217-0.434-0.434-0.434英制锥管螺纹基本尺寸及公差（牙形角55º） BSPT螺纹代号基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向位移偏差（±mm）大径中径小径基本最大最小基本最大最小R1/8″×289.7289.1478.566 4.0 4.9 3.1 6.57.4 5.6 1.1 R1/4″×1913.15712.30111.445 6.07.3 4.79.711.08.4 1.7 R3/8″×1916.66215.80614.950 6.47.7 5.110.111.48.8 1.7 R1/2″×1420.95519.79318.6318.210.0 6.413.215.011.4 2.3 R3/4″×1426.44125.27924.1179.511.37.714.516.312.7 2.3 R1″×1133.24931.77030.29110.412.78.116.819.114.5 2.9 R1.1/4″×1141.91040.43138.95212.715.010.419.121.416.8 2.9 R1.1/2″×1147.80346.32444.84512.715.010.419.121.416.8 2.9 R2″×1159.61458.13556.65615.918.213.623.425.721.1 2.9 R2.1/2”X1175.18473.70572.22617.521.014.026.730.223.2 3.5 R3”X1187.88486.40584.92620.624.117.129.833.326.3 3.5 R3.1/2”X11100.33098.85197.37222.225.718.731.434.927.9 3.5美制管螺纹基本尺寸及公差（牙形角60º） UN(F)螺纹代号外螺纹内螺纹公差等级公差等级2A2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大JIC螺纹7/16″×20UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.113 1/2″×20UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.7 9/16″×18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 3/4″×16UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05 7/8″×14UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225 1-1/16″×12UN26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988 1-5/16″×12UN33.29433.00531.9231.77330.77531.03931.49631.96332.15433.338 1-5/8″×12UN41.22940.9439.88539.70538.7138.98939.44639.90140.09441.275 1-7/8″×12UN47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625 2-1/2″×12UN63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS螺纹9/16″×18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 11/16″×16UN17.42717.18816.39616.27415.53515.74816.10416.43116.58917.463 13/16″×16UN20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638 1″×14UNF25.35725.09524.17824.03623.19523.44423.82524.22124.40725.4 1-3/16″×12UN30.11929.8328.74528.59827.627.86428.32128.78828.97930.163 1-7/16″×12UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.513 1-11/16″×12UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863 2″×12UN50.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE螺纹5/8″×18UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.875 1-1/16″×14UN26.94726.68325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺纹9/16″×16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.288 7/8″×12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.225 2-1/4″×12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注：UNC粗牙螺纹系列，UNF细牙螺纹系列， UNEF超细牙螺纹系列， UN不变螺距系列布锥管螺纹基本尺寸及公差(牙形角60º) NPT螺纹代号基面上的直径螺纹长度大径中径小径有效长度管端至基面长Z1/8″×2710.2729.5198.7667 4.572 Z1/4″×1813.57212.44311.3149.5 5.080 Z3/8″×1817.05515.92614.79710.5 6.096 Z1/2″×1421.22319.77218.32113.58.028 Z3/4″×1426.56825.11723.666148.611 Z1″×11.533.22831.46129.69417.510.160 Z1.1/4″×11.541.98540.21838.4511810.688 Z1.1/2″×11.548.05446.28744.52018.510.688 Z2″×11.560.09258.32556.5581911.074公制螺纹基本尺寸及公差(牙形角60º) M螺纹代号基本直径内螺纹外螺纹大径中径小径公差等级公差等级6H7H6g中径公差小径公差中径公差小径公差中径公差大径公差M10X1109.3508.917+0.150+0.236+0.190+0.300-0.026-0.138-0.026-0.206M12X11211.35010.917+0.160+0.236+0.200+0.300-0.026-0.144-0.026-0.206M14X11413.35012.917+0.160+0.236+0.200+0.300-0.026-0.144-0.026-0.206M12X1.251211.18810.647+0.180+0.265+0.224+0.335-0.028-0.160-0.028-0.240M14X1.251413.18812.647+0.180+0.265+0.224+0.335-0.028-0.160-0.028-0.240M12X1.51211.02610.376+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M14X1.51413.02612.376+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M16X1.51615.02614.376+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M18X1.51817.02616.373+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M20X1.52019.02618.376+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M22X1.52221.02620.376+0.190+0.300+0.236+0.375-0.032-0.172-0.032-0.268M24X1.52423.02622.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M26X1.52625.02624.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M27X1.52726.02625.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M30X1.53029.02628.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M33X1.53332.02631.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M36X1.53635.02634.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M39X1.53938.02637.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M42X1.54241.02640.376+0.200+0.300+0.250+0.375-0.032-0.182-0.032-0.268M27X22725.70124.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M30X23028.70127.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M33X23331.70130.835+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318M36X23634.70133.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M39X23937.70136.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M42X24240.70139.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M45X24543.70142.835+0.224+0.375+0.280+0.475-0.038-0.208-0.038-0.318M52X25250.70149.835+0.236+0.375+0.300+0.475-0.038-0.218-0.038-0.318M60X26058.70157.835+0.236+0.375+0.300+0.475-0.038-0.218-0.038-0.318M64X26462.70161.835+0.236+0.375+0.300+0.475-0.038-0.218-0.038-0.318M72X27270.70169.835+0.236+0.375+0.300+0.475-0.038-0.218-0.038-0.318。
螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55o）BSPP基本直径内螺纹外螺纹螺纹代号A 级B 级大径中径小径中径公差小径公差中径公差大径公差中径公差大径公差G1/8″× 289.7289.1478.566+0.170+0.2820000 0-0.107-0.214-0.214-0.214G1/4″× 1913.15712.30111.445+0.125+0.445-0.125-0.250-0.2500-0.250G3/8″× 1916.66215.80614.950+0.125+0.4450000 00-0.125-0.250-0.250-0.250G1/2″× 1420.95519.79318.631+0.142+0.5410000 00-0.142-0.284-0.284-0.284G5/8″× 1422.91121.74920.587+0.142+0.5410000 00-0.142-0.284-0.284-0.284G3/4″× 1426.44125.27924.117+0.142+0.5410000 00-0.142-0.284-0.284-0.284G1″× 1133.24931.77030.291+0.180+0.6400000 00-0.180-0.360-0.360-0.360G1.1/4″× 1141.91040.43138.952+0.180+0.6400000 00-0.180-0.360-0.360-0.360G1.1/2″× 1147.80346.32444.854+0.180+0.6400000 00-0.180-0.360-0.360-0.360G2″× 1159.61458.13556.656+0.180+0.6400000 00-0.180-0.360-0.360-0.360G2.1/2 ” X1175.18473.70572.226+0.217+0.640000000-0.217-0.434-0.434-0.434 G3” X1187.88486.40584.926+0.217+0.640000000-0.217-0.434-0.434-0.434G3.1/2 ” X11100.33098.85197.372+0.217+0.6400000 00-0.217-0.434-0.434-0.434英制锥管螺纹基本尺寸及公差（牙形角55o）BSPT基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向螺纹代号大径中径小径基本最大最小基本最大最小位移偏差（± mm）R1/8″× 289.7289.1478.566 4.0 4.9 3.1 6.57.4 5.6 1.1R1/4″× 1913.15712.30111.445 6.07.3 4.79.711.08.4 1.7R3/8″× 1916.66215.80614.950 6.47.7 5.110.111.48.8 1.7R1/2″× 1420.95519.79318.6318.210.0 6.413.215.011.4 2.3R3/4″× 1426.44125.27924.1179.511.37.714.516.312.7 2.3 R1″× 1133.24931.77030.29110.412.78.116.819.114.5 2.9R1.1/4″× 1141.91040.43138.95212.715.010.419.121.416.8 2.9R1.1/2″× 1147.80346.32444.84512.715.010.419.121.416.8 2.9 R2″× 1159.61458.13556.65615.918.213.623.425.721.1 2.9 R2.1/2 ” X1175.18473.70572.22617.521.014.026.730.223.2 3.5 R3” X1187.88486.40584.92620.624.117.129.833.326.3 3.5R3.1/2 ” X11100.33098.85197.37222.225.718.731.434.927.9 3.5美制管螺纹基本尺寸及公差（牙形角60o）UN(F)外螺纹内螺纹公差等级公差等级螺纹代号2A2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大JIC 螺纹7/16″× 20UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.1131/2″× 20UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.79/16″× 18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 3/4″× 16UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05 7/8″× 14UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225 1-1/16″× 12UN26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988 1-5/16″× 12UN33.29433.00531.9231.77330.77531.03931.49631.96332.15433.338 1-5/8″× 12UN41.22940.9439.88539.70538.7138.98939.44639.90140.09441.275 1-7/8″× 12UN47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625 2-1/2″× 12UN63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS 螺纹9/16″× 18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288 11/16″× 16UN17.42717.18816.39616.27415.53515.74816.10416.43116.58917.463 13/16″× 16UN20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638 1″× 14UNF25.35725.09524.17824.03623.19523.44423.82524.22124.40725.4 1-3/16″× 12UN30.11929.8328.74528.59827.627.86428.32128.78828.97930.163 1-7/16″× 12UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.513 1-11/16″× 12UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863 2″× 12UN50.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE 螺纹5/8″× 18UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.8751-1/16″× 14UN26.94726.68325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺纹9/16″× 16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.288 7/8″× 12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.225 2-1/4″× 12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注： UNC 粗牙螺纹系列，UNF 细牙螺纹系列，UNEF 超细牙螺纹系列，UN 不变螺距系列布锥管螺纹基本尺寸及公差 (牙形角 60o)NPT基面上的直径螺纹长度螺纹代号大径中径小径有效长度管端至基面长Z1/8 ″× 2710.2729.5198.7667 4.572 Z1/4 ″× 1813.57212.44311.3149.5 5.080 Z3/8 ″× 1817.05515.92614.79710.5 6.096 Z1/2 ″× 1421.22319.77218.32113.58.028 Z3/4 ″× 1426.56825.11723.666148.611 Z1 ″× 11.533.22831.46129.69417.510.160 Z1.1/4″× 11.541.98540.21838.4511810.688Z1.1/2″× 11.548.05446.28744.52018.510.688 Z2 ″× 11.560.09258.32556.5581911.074公制螺纹基本尺寸及公差(牙形角 60o)M基本直径螺纹代号大径中径小径M10X1109.3508.917 M12X11211.35010.917 M14X11413.35012.917 M12X1.251211.18810.647 M14X1.251413.18812.647 M12X1.51211.02610.376 M14X1.51413.02612.376 M16X1.51615.02614.376 M18X1.51817.02616.373 M20X1.52019.02618.376 M22X1.52221.02620.376 M24X1.52423.02622.376 M26X1.52625.02624.376 M27X1.52726.02625.376 M30X1.53029.02628.376 M33X1.53332.02631.376 M36X1.53635.02634.376 M39X1.53938.02637.376 M42X1.54241.02640.376 M27X22725.70124.835 M30X23028.70127.835 M33X23331.70130.835 M36X23634.70133.835 M39X23937.70136.835 M42X24240.70139.835 M45X24543.70142.835 M52X25250.70149.835 M60X26058.70157.835 M64X26462.70161.835 M72X27270.70169.835内螺纹外螺纹公差等级公差等级6H7H6g中径公差小径公差中径公差小径公差中径公差大径公差+0.150+0.236+0.190+0.300-0.026-0.026 0000-0.138-0.206 +0.160+0.236+0.200+0.300-0.026-0.026 0000-0.144-0.206 +0.160+0.236+0.200+0.300-0.026-0.026 0000-0.144-0.206 +0.180+0.265+0.224+0.335-0.028-0.028 0000-0.160-0.240 +0.180+0.265+0.224+0.335-0.028-0.028 0000-0.160-0.240 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.190+0.300+0.236+0.375-0.032-0.032 0000-0.172-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.200+0.300+0.250+0.375-0.032-0.032 0000-0.182-0.268 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.224+0.375+0.280+0.475-0.038-0.038 0000-0.208-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.318 +0.236+0.375+0.300+0.475-0.038-0.038 0000-0.218-0.31855 °圆锥管螺纹基本尺寸对照表最新下载-汇兴达55 °圆锥管螺纹基本尺寸对照表最新下载-汇兴达55 °圆锥管螺纹 (BSPT)螺纹基本尺寸大径螺距每英寸中小径径外mm牙型高度代号R 1 / 1 6R 1 / 8R 1 / 4R 3 / 8mm英寸d=D1/17.76"231/89.7"281/413."1573/816."662mmp0.9070.9071.3371.337牙数tpi28281919螺d2H1纹=Dd236.7.150.58142618.9.15470.5816611.12.40.8563014514.15.90.8568065R18.11/220. 1.819.1.162146/"95514793321R 24.3 3/4 26. 1.825. / "4411411.1621427941 73 R 33. 2.3 0.31. 1"24911 2 1.4791097791R 3 112.3 8.41.40.11/4091191.479910431/ "5 42R 4 1 14.1 47.2.31146.1.4791/28/ 80309324"4 2556.R59.2.358. 1.4792"11626140913556R 75.2.3 73.2 1171.4792184097051/22.1"2 /2 268R87. 2.34.86.3"884119 1.4793094052611131111R 2.311.550.4".03 1.47940910721 1381363R 2.311.955.5".43 1.479509147211631626R0.2.36".8311.35 1.479 60980172聊城市鑫茂祥管业有限公司专业经营钢管规格：5mm*1mm— 1020mm*200mm合金钢管、外径22mm-127mm 冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、 16Mn外径400—1600mm、壁厚20 —60mm的大口径厚壁卷管，可定尺到16 米及各种规格的无缝方管、异型无缝钢管等 . 常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管，精密无缝钢管、光亮无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
螺纹基本尺寸对照表
英制管螺纹基本尺寸及公差（牙形角55º）BSPP英制锥管螺纹基本尺寸及公差（牙形角55º）BSPT美制管螺纹基本尺寸及公差（牙形角60º）UN(F)布锥管螺纹基本尺寸及公差(牙形角60º) NPT公制螺纹基本尺寸及公差(牙形角60º) M55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹基本尺寸对照表最新下载-汇兴达55°圆锥管螺纹(BSPT)聊城市鑫茂祥管业有限公司专业经营钢管规格：5mm*1mm—1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度±0.5%,壁厚精度±5%热轧中厚壁无缝钢管、16Mn 外径400—1600mm、壁厚20—60mm的大口径厚壁卷管，可定尺到16米及各种规格的无缝方管、异型无缝钢管等.常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织机械用无缝钢管、汽车；水利用无缝钢管，精密无缝钢管、光亮无缝钢管、军工医疗用无缝钢管、管道用无缝钢管、支柱用无缝钢管、合金无缝管、高压无缝管、大口径直缝焊管等。
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公司常年销售成都钢铁集团、冶钢集团、包头钢厂、宝钢集团、鞍钢集团、天津大无缝、西宁特钢厂、无锡钢厂、衡阳钢厂等各大钢厂生产的各种无缝钢管及合金管。
主营材质：20#、35#、45#、20G、20A、40Mn2、45Mn2、27SiMn、40MnB、20MnVB、20Cr、30Cr、35Cr、40Cr、45Cr、50Cr、38CrSi、12CrMo 、20CrMo、35CrMo、42CrMo、12CrMoV、12Cr1MoV、38CrMoAL、50CrV、20CrMnSi、30CrMnSi、35CrMnSi、20CrMnTi、30CrMnTi、12CrNi2、12CrNi3、12Cr2Ni4、40CrNiMoA、45CrNiMoVA、20G、20MnG、25MnG、12CrMoG、15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、12Cr3MoVSiTiB等实行标准：GB/T8162-99构造管、GB/T8163-99流体管、GB/T3087-99中低压锅炉管、GB/T5310-95高压锅炉管、GB/T6479-2000化肥专用管、27SiMn液压支架管、高压合金管、GB/T9948-85石油裂化管GB9948-88、地质钻探用管YB235-70、汽车半轴套管YB/T5035-96。
螺纹管件尺寸表
Sch40 STD Sch80 XS
○ ○ ○ ○ ○ ○ ○ ○
Sch160 L
XXS
60 ○
90 ○
120 ○
150 ○
180 ○ ○
国内沿用系列钢管(公制管) Metric Pipe 公称通径
Nominal Diameter DN 10 15 20 25 32 40
外径 Outside Diameter
Width Of Length
Flats
六角头高度 Hex Head
Height
D
Lmin
S
Kmin Hmin
10
35
11.0
-
6
13
41
16.0
36
17
41
17.5
48
21
44
22.0
27
44
27.0
6 10
33
51
35.0
6 10
43
51
44.5
7 14
48
51
51.0
8 16
60
64
63.5
43
51
44.5
7
14
48
51
51.0
8
16
60
64
63.5
9
17
73
70
76.0
10 19
89
70
89.0
10 21
114
76 117.5 13 25
5. 方头管塞
公称通径 Nominal Diameter
螺纹长度 Length of
Thread
DN NPS 6 1/8 8 1/4 10 3/8 15 1/2 20 3/4 25 1 32 1.1/4 40 1.1/2 50 2 65 2.1/2 80 3 100 4
螺纹管件尺寸表.
螺纹管件尺寸表1. 平头外丝（短管）国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug andBushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.010.六角头内外螺纹接头（补芯）公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex Head HeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 2511.同径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 10 65 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/420 38 21 79 18 14 80 3 20 40 --- 100 70 63 80×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×253×120402585231912. 单头螺纹管箍公称通径Nominal Diameter 管箍、管帽长度 The Length of Coupling and Cap 外径 Outside Diameter 管帽顶厚 End Wall Thickness 螺纹长度 Length of Thread EFD Cmin DN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB B L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS 6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 1004121121687514015922.028.527.533.013.异径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 1065 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/4 20 38 21 79 18 1480 3 20 40 --- 100 70 6380×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×25 3×1 20 40 25 85 23 1914.螺纹活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominal Dmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.015.双头螺纹管帽公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.016.承插活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominalDmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.017. 圆头管塞公称通径Nominal Diameter 螺纹长度 Length of Thread 方头管塞Square Head Plug 圆头管塞 Round Head Plug 六角头管塞和接头 Hex Head Plug and Bushing 方头高度 Height of Square 平面宽度 Width Of Flats 圆头直径 Diameter of Round Head全长 Length 平面宽度 Width Of Flats 六角头高度 Hex Head Height DN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100432.02563.511476117.51325。