常用螺纹尺寸及公差汇总表

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常用螺纹尺寸及公差汇总表

公制螺纹基本直径内螺纹公差等级外螺纹公差6H7H6G大径中径小径中径公差小径公差中径公0,差小径公差中径公差小径公差M10*1109.358.9170,+0.1500,+0.2360,+0.1900,+0.300-0.026,-0.138-0.026,0.206M12*11211.3510.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206M14*11413.35122.9170,+0.1600,+0.2360,+0.2000,+0.300-0.026,-0.144-0.026,0.206M12*1.251211.18810.6470,+0.1800,+0.2650,+0.2240,+0.335-0.028,-0.160-0.028,-0.240 M14*1.251413.18812.6470,+0.1800,+0.2650,+0.2240,+0.335-0.028,-0.160-0.028,-0.240 M12*1.51211.02610.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M14*1.51413.02612.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M16*1.51615.02614.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M18*1.51817.02616.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M20*1.52019.02618.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M22*1.52221.02620.3760,+0.1900,+0.3000,+0.2360,+0.375-0.032,-0.172-0.032,-0.268 M24*1.51423.02622.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M26*1.52625.02624.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M27*1.52726.02625.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M30*1.53029.02628.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M33*1.53332.02631.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M36&1.53635.02634.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M39*1.53938.02637.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M42*1.54241.02640.3760,+0.2000,+0.3000,+0.2500,+0.375-0.032,-0.182-0.032,-0.268 M27*22725.70124.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M30*23028.70127.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M33*23331.70130.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M36*23634.70133.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M39*23937.70136.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M42*24240.70139.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M45*24543.70142.8350,+0.2240,+0.3750,+0.2800,+0.475-0.038,-0.208-0.038,-0.318 M52*25250.70149.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318 M60*26058.70157.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318 M64*26462.70161.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318 M72*27270.70169.8350,+0.2360,+0.3750,+0.3000,+0.475-0.038,-0.218-0.038,-0.318美制NPSM螺纹（美国标准ANSI B1.20.1机械连接用直管螺纹60度）外螺纹（2A级）内螺纹（2B级）大径中径小径中径标号螺纹代号最大值最小值最大值最小值最小值最大值最小值最大值021/8-27NPSM 10.0849.9069.4629.3709.0939.2469.4899.609041/4-18NPSM 13.36013.13212.45412.34211.88712.21712.48712.634063/8-18NPSM 16.81516.58615.89015.77615.31615.54515.92616.076081/2-14NPSM 20.90420.65019.73319.60418.97419.27919.77119.942123/4-14NPSM 26.26426.01025.07724.94324.33324.63825.11825.293161-11.5NPSM 32.84232.53731.41731.27030.50530.75931.46031.65320 1.1/4-11.5NPSM 41.60541.30040.17340.02039.26839.49740.21840.41624 1.1/2-11.5NPSM 47.67647.37146.24146.08645.33945.56846.28646.487322-11.5NPSM 59.71559.41158.27858.12057.37957.60758.32658.53240 2.1/2-8NPSM 72.16171.78070.10469.91668.78369.26670.16070.409483-8NPSM 88.06287.68186.00985.81684.68485.16686.06886.319NPT 布锥管螺纹基面上的直径螺纹长度标号螺纹代号大径中径小径管端至基面长有效长度端面大径02Z1/8*2710.2429.4898.736 4.102 6.7039.98604Z1/4*1813.61612.48711.3855.78610.20613.25406Z3/8*1817.05515.92614.7976.09610.35816.67408Z1/2*1421.22319.77218.3218.12813.55620.71512Z3/4*1426.56825.11723.6668.61113.86126.03016Z1*11.533.22831.46129.69410.16017.34332.59320Z1.1/4*1.541.98540.21838.45110.66817.95341.31824Z1.1/2*11.548.05446.28744.52010.66818.37747.38732Z2*11.560.09258.32556.55811.07419.21559.40040Z2.1/2*872.69970.15967.61917.32328.89271.61648Z3*888.60886.06883.52819.45630.48087.39255度英锥管螺纹基本直径内螺纹外螺纹公差等级AB 标号螺纹代号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02G1/8*289.7289.1478.5660.170，00.282，00，-0.1700，-0.2140，-0.2140，-0.21404G1/4*1913.15712.30111.4450.125，00.445，00.-0.1250，-0.2500，-0.2500，-0.25006G3/8*1916.66215.80614.9500.125，00.445，00，-0.1250，-0.2500，-0.2500，-0.25008G1/2*1420.95519.79318.6310.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28410G5/8*1422.91121.74920.5870.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28412G3/4*1426.44125.27924.1170.142，00.541，00，-0.1420，-0.2840，-0.2840，-0.28416G1*1133.24931.77030.2910.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36020G1.1/4*1141.91040.43138.9520.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36024G1.1/2*1147.80346.32444.8450.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36032G2*1159.61458.13556.6560.180，00.640，00，-0.1800，-0.3600，-0.3600，-0.36040G2.1/2*1175.18473.70572.2260.217，00.640，00，-0.2170，-0.4340，-0.4340，-0.43448G3*1187.88486.40584.9260.217，00.640，00，-0.2170，-0.4340，-0.4340，-0.43455度英锥管螺纹基面上的直径基准长度有效螺纹长度标号螺纹代号大径中径小径基本最大最小基本最大最小圆锥内螺纹基面轴向位移的极限偏差端面大径02R1/8*289.7289.1478.5664 4.9 3.16.57.4 5.61.19.47804R1/4*1913.15712.30111.44567.3 4.79.7118.4 1.712.78206R3/8*1916.66215.80614.950 6.47.7 5.110.111.48.8 1.716.26208R1/2*1420.95519.79318.6318.2106.413.21511.42.320.44312R3/4*1426.44125.27924.1179.511.37.714.516.312.7 2.325.84716R1*1133.24931.77030.29110.412.78.116.819.114.5 2.932.59920R1.1/4*1141.91040.43138.95212.71510.419.121.416.8 2.941.11624R1.1/2*1147.80346.32444.84512.71510.419.121.416.8 2.947.00932R2*1159.61458.13556.65615.918.213.623.425.721.1 2.958.62040R2.1/2*1175.18473.70572.22617.5211426.730.223.2 3.574.09048R3*1187.88486.40584.92620.624.117.129.833.326.3 3.586.597美制螺纹外螺纹内螺纹公差等级2A公差等级2B大径中径小径中径标号螺纹代号最大最小最大最小小径最大最小最大最小最大大径最小JIC 螺纹025/16×24UNF 7.9107.7277.2217.127 6.6506.7827.0367.2497.3717.938033/8*24UNF9.4979.3148.8098.7128.2378.3828.6368.8378.9619.525047/16*20UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.113051/2*20UNF12.66712.46111.84111.73211.15611.32811.60811.87512.01712.7069/16*18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.288083/4*16UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.05107/8*14UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.225121.1/16*12UNF26.94426.65525.5725.42524.42524.68925.14625.61325.80126.988161.5/16*12UNF33.29433.00531.9231.77330.77531.03931.49631.96332.15433.338201.5/8*12UNF41.22940.9439.85539.70538.7138.98939.44639.90140.09441.275241.7/8*12UNF47.57947.2946.20546.05345.0645.33945.79646.25146.44947.625322.1/2*12UNF63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5403812UNF76.15775.86274.77874.61873.63273.91474.37174.82675.03476.218HK1.1/2*10UNF38.05237.72436.40136.23835.02935.35735.89036.44936.66038.100ORFS 螺纹049/16*18UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.2880611/16*16UNF17.42717.18816.39616.27415.53515.74816.10416.43116.58917.4630813/16*16UNF20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638101*14UNSF25.35725.09524.17824.03623.19523.44423.82524.22124.40725.4121.3/16*12UN30.11929.8328.75428.59827.627.86428.32128.78828.97930.163161.7/16*12UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.513201.11/16*12UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863242*12UN50.75450.46549.3849.2548.23548.51448.97149.42649.62750.8SAE 螺纹065/8×18UNF 15.83915.61814.92314.80314.16114.35114.68114.95815.1115.875121.1/16*14UNF26.94726.683 25.74325.60824.7424.96825.37525.78325.96126.987其他美制螺纹9/16*16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.2887/8*12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.2252.1/4*12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15可拆式芯子与套筒连接螺纹外螺纹内螺纹公差等级2B 大径中径小径中径软管编号螺纹代号最大最小最大最小小径最小最大最小最大大径R5-049/32*327.1206.967 6.604 6.523 6.175 6.294 6.472 6.629 6.7367.145R5-0546/127*289.1979.0328.6088.5168.1158.2348.4638.6368.7539.225R5-06107/254*2810.68510.52010.09510.0049.6039.7359.93810.12310.24010.713R5-089/16*2414.25714.07413.56913.47012.99713.13213.38613.59913.72914.288R5-1011/16*2417.43217.24916.74416.64216.17216.30716.56116.77416.90617.463R5-1213/16*2020.59920.39919.77919.66719.34719.25319.55819.81219.98220.638R5-161.1/16*1826.95226.73126.03525.91625.27325.45125.78126.07126.22826.988R5-201.5/16*1833.29933.07832.38232.25831.62031.80132.13132.42132.58133.338R5-241.9/16*1839.64939.42838.73238.60537.97038.15138.48138.77138.93639.688R5-322*1850.76250.54149.84549.71549.08349.27649.60649.88350.05350.8002A-047/16*2011.07910.87410.25410.1479.5689.72810.03310.28710.42411.1132A-069/16*1814.25214.03113.33513.22112.57312.75113.08113.37113.52014.2882A-085/8*1815.83915.61814.92314.80314.16114.35114.68114.95815.11015.8752A-103/4*1819.01418.79318.09817.98117.33617.52617.85618.13318.28519.0502A-127/8*1822.18921.96821.27321.15620.51120.70121.03121.30821.46022.2252A-161.3/16*1630.12429.87029.09328.96428.23228.44828.80429.13129.29930.1632A-201.9/16*1839.64939.42838.73238.60537.97038.15138.48138.77138.93639.688新西兰B09内螺纹标号你螺纹代号大径MIN中径MIN中径MAX小径MIN小径MAX B-090.860in*1421.84420.68320.84119.522NPTF+密封管螺纹标号螺纹代号外螺纹小端中径外螺纹大端中径外螺纹小端大径最小外螺纹小端大径最大外螺纹全牙长度内螺纹大端中径内螺纹小端中径内螺纹大端小径最小内螺纹大端小径最大内螺纹全牙长度21/8-27NPTF9.2339.6529.8719.960 6.7039.4899.0588.7638.851 6.924 41/4-18NPTF12.12612.76413.12813.21510.20612.48711.86211.39811.48610.020 63/8-18NPTF15.54516.19316.54716.63410.35815.92615.28114.83714.92410.330 81/2-14NPTF19.26420.11120.61620.70313.55619.77218.92618.33318.42013.571 123/4-14NPTF24.57925.44525.93126.01813.86125.11724.23923.67823.76814.054 161-11.5NPTF30.82631.91032.47432.56217.34331.46130.41129.72529.81316.787 20 1.1/4-11.5NPTF39.55140.67341.19941.28717.95340.21839.13638.48238.57017.295 24 1.1/2-11.5NPTF45.62146.76947.26947.35718.37746.28745.20744.55144.64017.295 322-11.5NPTF57.63358.83459.28159.36919.21558.32557.21956.58956.67717.701 40 2.1/2-8NPTF69.07670.88271.47671.55928.89370.15968.48167.67667.75926.848 483-8NPTF84.85286.75787.25287.33530.48086.06884.25783.58583.66828.981备注：1.表中外螺纹的完整螺纹长度包括不超过一个螺距长度的倒角2.表中内螺纹的完整螺纹长度不包括在中径线和倒角交线外的锥口孔。

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之宇文皓月创作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)6 0 09 1 872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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管螺纹的基本尺寸表(2010-10-25 15:57:35)标签：杂谈表（1）螺纹基本尺寸G1/2 、ZG1/2 (单位:mm)尺寸代每螺距p 牙型圆弧半基面上的基本直径基准有效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)螺纹尺度的一种，按外形分圆柱、圆锥两种；按牙型角分55°、60°两种。

(完整word版)螺纹基本尺寸对照表

11。732
11.156
11.328
11。608
11。875
12。017
12.7
9/16″×18UNF
14.252
14.031
13.335
13。221
12。573
12。751
13。081
13.371
13.52
14.288
3/4″×16UNF
19。012
18.773
17.981
17.854
17。12
17.323
15.11
15.875
1—1/16″×14UN
26。947
26.683
25.743
25.608
24。74
24.968
25.375
25。783
25.961
26。987
其它美制螺纹
9/16″×16UN
14.252
14。013
13.221
13。101
12。36
12。573
12。929
13。256
13。411
螺纹代号
外螺纹
内螺纹
公差等级
公差等级
2A
2B
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″×20UNF
11。079
10.874
10.254
10。147
9.568
9.728
10。033
10。287
10。424
11.113
1/2″×20UNF
12。667
12。461

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)R4 4"113.032.30911111.551110.0721.479R5 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=D1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。

螺纹基本尺寸及公差

螺纹基本尺寸及公差浙江苏强格液压有限公司质量作业文件产品代号规则Q/SQ-G8.4-031 过渡接头编号规则1.1 直通过渡接头编号规则直通过渡接头型号左端标号右端标号直通过渡接头型号中的第一位为数字，表示两端内外螺纹的组合情况;第二、三位为字母，分别表示左右端的结构型式，当左右端结构型式相同时，则使用一位字母，当左右端标号相同时，也使用一组标号。

1.1.1 型号中的第一位数字的含义如下表1 外螺纹/外螺纹 6 过板接头(右端过板)1 法兰/对接式焊接头 7 固定内螺纹/固定内螺纹(无螺母或插入焊)2 外螺纹/活动内螺纹(活动螺母) 8 锁母3 活动内螺纹/活动内螺纹 9 内螺纹堵头4 外螺纹堵头.堵板5 外螺纹/固定内螺纹5 外螺纹/较短焊接管1.1.2 型号中第二、三位字母的含义如下表A 英管螺纹球面 M 公制60?锥面或六角端面组合垫密封B 英管螺纹60?锥面或六角端面组合垫密封 N 美制布锥管C 公制24?轻系列 O 美制SAE O-Ring BOSSD 公制24?重系列 P 美制SAE 90?E 公制平面带O形圈 Q 公制74?F 美制ORFS平面 S 日式英管螺纹60?外锥G 英管螺纹平面、O-Ring密封 T 英锥管螺纹H 公制六角端面O-Ring密封 U NPSMI 710xx系列国标公制铰接体 W 焊接管J 美制JIC 74? X 表示与软管相连用卡环固定K 公制螺纹60?外锥(小松) Y 矿用接头(SAE标准)L 公制组合垫圈密封 Z BSP平面用组合垫密封1Q/SQ-G8.4-031.1.3 左右端标号根据左右端头部的螺纹或尺寸大小定，如下表:英管G1/8” G1/4” G3/8” G1/2” G5/8” G3/4” G1.1/4” G1.1/2” --G1”x11 G2”x11 螺纹 x28 x19 x19 x14 x14 x14 x11 x11 英锥管R1/8”R1/4” R3/8” R1/2” R3/4” R1.1/4” R1.1/2” -- -- R1”x11 R2”x11 螺纹x28 x19 x19 x14 x14 x11 x11 布锥管Z1/8” Z1/4” Z3/8” Z1/2” Z3/4”Z1.1/4” Z1.1/2” Z2” -- Z1”x11.5 螺纹 x27 x18 x18 x14 x14 x11.5 x11.5 x11.5 美制JIC 7/16” 1/2” 9/16” 3/4” 7/8” 1.1/16” 1.5/16” 1.5/8”1.7/8”2.1/2” -- 螺纹 x20 x20 x18 x16 x14 x12 x12 x12 x12 x12 美制ORFS9/16” 11/16” 13/16” 1” 1.3/16” 1.7/16” 1.11/16” 2” -- -- -- 螺纹 x18 x16 x16 x14 x12 x12 x12 x12 美制SAE5/8” 1.1/16” 螺纹 x18 x14 法兰1/2“ 5/8“ 3/4“ 1“ 1.1/4“ 1.1/2“ 2“ 插装式 04 06 08 12 16 20 24 32 标号 02 04 05 06 08 10 12 16 20 24 32 注:公制螺纹的标号按螺纹外径，卡套式直管的标号按直管外径。

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)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。

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。

螺纹尺寸和公差

M米制粗牙螺纹基本牙型与尺寸和公差带H=^|-P=0,866025PHi=H=0.5r3l-'8H2=二0.61®川2dd2=D2=d-0.64952P di=d-2H=d-1t22687P「处—=0J4434代号（大径）d=D 螺距P螺纹中径d2=D2夕卜螺纹小径di内螺纹小径D1外螺纹全齿高H2配合齿高H1螺纹中径尺寸（6H公差带级别）丝锥螺纹中径（H2公差带级别为例）min max min maxM3 0.5 2.672 2.387 2.459 0.307 0.271 2.675 2.775 2.699 2.714 M3.5 0.6 3.110 2.764 2.850 0.368 0.325 3.110 3.222 3.137 3.155 M4 0.7 3.545 3.141 3.242 0.429 0.379 3.545 3.663 3.574 3.593 M5 0.8 4.480 4.019 4.134 0.491 0.433 4.480 4.605 4.510 5.530 M6 1.0 5.350 4.773 4.937 0.613 0.541 5.350 5.500 5.385 5.408 M7 1.0 6.350 5.773 5.937 0.613 0.541 6.350 6.500 6.385 6.408 M8 1.25 7.188 6.466 6.647 0.767 0.677 7.188 7.348 7.226 7.251 M10 1.5 9.026 8.160 8.376 0.920 0.812 9.026 9.206 9.068 9.096 M12 1.75 10.863 9.853 10.106 1.074 0.947 10.863 11.063 10.911 10.943 M14 2.0 12.701 11.546 11.835 1.227 1.083 12.701 12.913 12.752 12.786 M16 2.0 14.701 13.546 13.835 1.227 1.083 14.701 14.913 14.752 14.786 M18 2.5 16.373 14.933 15.294 1.534 1.353 16.376 16.600 16.430 16.466 M20 2.5 18.376 16.933 17.294 1.534 1.353 18.376 18.600 18.430 18.466 M22 2.5 20.376 18.933 19.294 1.534 1.353 20.376 20.600 20.430 20.466MF 米制细牙螺纹基本牙型与尺寸和公差带H=^-P=0,866025PH I =4-H=O.;：rjPcH ：=吕4：：：6刖、卅d2=D2=d-0.649b2Pdi=d-2H =d-k22687P r 匕—=0.-1-13^111b代号（大径） d=D 螺距 P 螺纹中径d2=D2 夕卜螺纹小径di内螺纹小径 D1 外螺纹全齿高H2 配合齿高H1 螺纹中径尺寸（6H 公差带级别）丝锥螺纹中径（H2公差带级别为例）min max min max M3 0.35 2.773 2.571 2.621 0.215 0.189 2.773 2.863 2.794 2.809 M3.5 0.35 2.273 3.071 3.121 0.215 0.189 3.273 3.363 3.294 3.309 M4 0.5 3.675 3.387 3.459 0.307 0.271 3.675 3.775 3.699 3.714 M5 0.5 4.675 4.387 4.459 0.307 0.271 4.675 4.775 4.699 4.714 M6 0.75 5.513 5.080 5.188 0.460 0.406 5.513 5.645 5.545 5.566 M8 1.0 7.350 6.773 6.917 0.613 0.541 7.350 7.500 7.385 7.408 M10 1.0 9.350 8.773 8.917 0.613 0.541 9.350 9.500 9.385 9.408 M10 1.25 9.188 8.466 8.647 0.767 0.677 9.188 9.348 9.226 9.251 M12 1.25 11.188 10.466 10.647 0.767 0.677 11.188 11.368 11.226 11.251 M12 1.5 11.026 10.160 10.376 0.920 0.812 11.026 11.216 11.068 11.096 M14 1.5 13.026 12.160 12.376 0.920 0.812 13.026 13.216 13.068 13.096 M16 1.5 15.026 14.160 14.376 0.920 0.812 15.026 15.216 15.068 15.096 M18 1.5 17.026 16.160 16.376 0.920 0.812 17.026 17.216 17.068 17.096 M18 2.0 16.701 15.546 15.835 1.227 1.083 16.701 16.913 16.752 16.786 M20 1.5 19.026 18.160 18.376 0.920 0.812 19.026 19.216 19.068 19.096 M20 2.0 18.701 17.546 17.835 1.227 1.083 18.701 18.913 18.752 18.786 M221.521.02620.16020.3760.9200.81221.02621.21621.06821.096内螺纹外螺纹夕卜曝H=^p=0.866025P H I =工H 二N541即o H/=4H=0.61343^Z--1d2=D2=cl-C i .6/1952Pd 1=d-2H=d-1.22687P 「K tL =O ,14434P代号（螺纹直径一 25.4m 内牙数）螺距P 螺纹大径d=D 螺纹中径d2=D2 内螺纹小径D1夕卜螺纹小径d1 螺纹中径尺寸丝锥螺纹中径2B3Bm in 2B max 3B max min max N0.5—40 0.635 3.175 2.746 2.487 2.395 2.764 2.847 2.827 2.776 2.789 NO.6—32 0.794 3.505 2.990 2.647 2.532 2.990 3.084 3.058 3.105 3.028 NO.8—32 0.794 4.166 3.650 3.307 3.193 3.650 3.746 3.721 3.675 3.688 NO.10—24 1.058 4.826 4.138 3.680 3.528 4.138 4.247 4.219 4.963 4.176 NO.12—24 1.058 5.486 4.798 4.341 4.188 4.798 4.910 4.882 4.823 4.836 UNCl/4〃-20 1.270 6.350 5.524 4.976 4.793 5.524 5.646 5.616 5.575 5.588 UNC5/16〃-18 1.411 7.938 7.021 6.411 6.205 7.021 7.155 7.120 7.071 7.084 UNC3/8"-16 1.588 9.525 8.494 7.805 7.577 8.494 8.639 8.603 8.545 8.557 UNC7/16"-14 1.814 11.112 9.934 9.149 8.887 9.934 10.089 10.051 9.985 9.997 UNC1/2"-13 1.954 12.700 11.430 10.584 10.302 11.430 11.595 11.552 11.481 11.494 UNC9/16"-12 2.117 14.288 12.913 11.996 11.692 12.913 13.086 13.043 12.964 12.977 UNC5/8"-11 2.309 15.875 14.376 13.376 13.043 14.376 14.559 14.514 14.427 14.440 UNC3/4"-10 2.540 19.050 17.399 16.229 15.933 17.399 17.595 17.544 17.450 17.463 UNC7/8"-9 2.822 22.225 20.390 19.169 18.763 20.391 20.599 20.546 20.455 20.467 UNC1"-83.17525.40023.33821.96321.50423.33823.56123.50523.40123.414内f纹H=^|-P=0.866025PHi=等H二!1541芥□H2=TTY H=0.613-1,P d2=D2=d-0.6d952Pdi=d-2H=d-h2268r哉H=0.ri'13-1J6代号（螺纹直径一25.4m内牙数）螺距P螺纹大径d=D螺纹中径d2=D2内螺纹小径D1夕卜螺纹小径d1螺纹中径尺寸丝锥螺纹中径（2级）2B3Bmin2Bmax3Bmaxmin maxNO.5—44 0.577 3.175 2.799 2.550 2.466 2.799 2.880 2.860 2.812 2.824 NO.6—40 0.635 3.505 3.094 2.817 2.725 3.094 3.180 3.157 3.108 3.119 NO.8—36 0.706 4.166 3.708 3.401 3.299 3.708 3.800 3.777 3.721 3.734 NO.10—32 0.794 4.826 4.310 3.976 3.853 4.310 4.409 4.384 4.336 4.348 NO.12—28 0.907 5.486 4.897 4.503 4.374 4.897 5.004 4.976 4.923 4.935 UNCl/4〃-28 0.907 6.350 5.761 5.367 5.237 5.761 5.870 5.842 5.799 5.812 UNC5/16〃-24 1.058 7.938 7.249 6.792 6.640 7.249 7.371 7.341 7.287 7.300 UNC3/8"-24 1.058 9.525 8.837 8.379 8.227 8.837 8.961 8.931 8.875 8.887 UNC7/16"-20 1.270 11.112 10.287 9.738 9.555 10.287 10.424 10.391 10.338 10.351 UNC1/2"-20 1.270 12.700 11.874 11.326 11.143 11.874 12.017 11.981 11.925 11.938 UNC9/16"-18 1.411 14.288 13.371 12.761 12.555 13.371 13.520 13.482 13.421 13.434 UNC5/8"-18 1.411 15.875 14.958 14.348 14.143 14.958 15.110 15.072 15.009 15.022 UNC3/4"-16 1.588 19.050 18.019 17.330 17.102 18.019 18.184 18.143 18.070 18.082 UNC7/8"-14 1.814 22.225 21.046 20.262 20.000 21.046 21.224 21.181 21.110 21.123 UNC1"-12 2.117 25.400 24.026 23.109 22.804 24.026 24.219 24.171 24.089 24.102G(BSP)非螺纹密封的管螺纹基本牙型与尺寸内蝶纹25.4卩―每内牙数H=0.96049PH1=0+640327P10J37329PH/6=0.160082螺纹代号每25.4mm内牙数螺距Pmm螺纹大径d=Dmm螺纹中径d2=D2mm螺纹小径d1=D1mmH1mmR~mm螺纹中径公差带丝锥螺纹中径公差带min max min maxG1/8〃28 0.907 9.728 9.147 8.566 0.581 0.125 9.147 9.254 9.177 9.194 G1/4〃19 1.337 13.147 12.301 11.445 0.856 0.184 12.301 12.426 12.366 12.356 G3/8〃19 1.337 16.662 15.806 14.950 0.856 0.184 15.806 15.933 15.801 15.861 G1/2〃14 1.814 20.955 19.793 18.631 1.162 0.249 19.793 19.935 19.828 19.848 G5/8〃14 1.814 22.911 21.749 20.587 1.162 0.249 21.749 21.891 21.784 21.804 G3/4〃14 1.814 26.441 25.279 24.117 1.162 0.249 25.279 25.421 25.314 25.334 G7/8〃14 1.814 32.201 29.039 27.877 1.162 0.249 29.039 29.181 29.074 29.094 G1〃11 2.309 33.249 31.770 30.291 1.479 0.317 31.770 31.950 31.815 31.839 G1-1/8〃11 2.309 37.897 36.418 34.939 1.479 0.317 36.418 36.598 36.463 36.487 G1-1/4〃11 2.309 41.910 40.431 38.952 1.479 0.317 40.431 40.611 40.476 40.500 G1-3/8〃11 2.309 44.323 42.844 41.365 1.479 0.317 42.844 43.024 42.889 42.913 G1-1/2〃11 2.309 47.803 46.324 44.845 1.479 0.317 46.324 46.504 46.374 46.398 G1-3/4〃11 2.309 53.746 52.267 50.788 1.479 0.317 52.267 52.447 52.327 52.354 G2〃11 2.309 59.614 58.135 56.656 1.479 0.317 58.135 58.315 58.195 58.222丝锥图标与符号说明:螺纹类型:螺孔型式M——米制粗牙普通螺纹T1通孔一-W1.2dMF ——―米制细牙普通螺纹T2通孔一--W2dUNC —―统一粗牙螺纹B1不通孔-——W1.2dUNF —―统一细牙螺纹B2不通孔-——W1.8dG(BSP)—―非螺纹密封的管螺纹B3不通孔-——W2.2dW(BSW)-―惠氏螺纹NPT ———60°牙形角圆锥管螺纹d为螺纹大径RP ——用螺纹密封的圆柱管螺纹RC(BSPT)――用螺纹密封的圆柱管螺纹EC ——安装钢丝螺套用内螺纹螺纹齿形角:丝锥类别:60°55 N——加工普通结构钢、软的灰铸铁中等硬度的有色金属H――加工特别硬的、硬而韧的材料W――加工特别软与韧的材料丝锥结构种类：丝锥切削锥长度：直槽丝锥螺尖丝锥螺旋槽丝锥跳牙丝锥A型带冷却孔丝锥（用于不通孔）B型带冷却孔丝锥（用于通孔）挤压丝锥带油槽挤压丝锥钻攻复合丝锥X——（5〜6P）Y——（4~5P）Z——（2〜3P）丝锥柄部采用的标准GB4267DIN10-1丝锥螺纹公差带等级：丝锥采用的标准：中国国家标准中国机械行业标准JB国际标准ISO德国标准带级别的螺纹丝锥材料：HSS——普通高速钢HSS-E——高性能高速钢HSS-PM——粉末冶金高速钢Hm硬质合金丝锥刃倾角、螺旋角：螺尖丝锥的刃倾角入1——12°入2——18°螺旋槽丝锥的螺旋角B1——20°B2——30B3——40°H1——适合加工米制内螺纹4H5H公差带级别的螺纹H2——适合加工米制内螺纹5G6H公差带级别的螺纹H3——适合加工米制内螺纹6G7H7G带级别的螺纹1——适合加工统一螺纹内螺纹1B公差级别的螺纹2——适合加工统一螺纹内螺纹2B公差级别的螺纹W2――适合加工惠氏内螺纹中等级公差级别的螺纹W3――适合加工惠氏内螺纹普通级公差级别的螺纹。

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″×28
+
+
0
0
0
0
0
G1/4″×19
+
+
G3/8″×19
+
0
+
0
0
0
0
0
G1/2″×14
+
0
+
0
0
0
0
0
G5/8″×14
+
0
+
0
0
0
0
0
G3/4″×14
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

Z1/8″×27
7
Z1/4″×18
Z3/8″×18
Z1/2″×14
Z3/4″×14
14
Z1″×
4″×
18
2″×
Z2″×
19
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
0
+
0
+
0
+
0
M39X2
39
+
0
+
0
+
0
+
0
M42X2
42
+

常用螺纹尺寸与公差汇总表

0.445，0
0.-0.125
0，-0.250
0，-0.250
0，-0.250
06
G3/8*19
16.662
15.806
14.950
0.125，0
0.445，0
0，-0.125
0，-0.250
0，-0.250
0，-0.250
08
G1/2*14
20.955
19.793
18.631
0.142，0
0.541，0
M33*1.5
33
32.026
31.376
0,+0.200
0,+0.300
0,+0.250
0,+0.375
-0.032,-0.182
-0.032,-0.268
M36*1.5
36
35.026
34.376
0,+0.200
0,+0.300
0,+0.250
0,+0.375
-0.032,-0.182
-0.032,-0.268
M39*1.5
39
38.026
37.376
0,+0.200
0,+0.300
0,+0.250
0,+0.375
-0.032,-0.182
-0.032,-0.268
M42*1.5
42
41.026
40.376
0,+0.200
0,+0.300
0,+0.250
0,+0.375
-0.032,-0.182
-0.032,-0.268

螺纹基本尺寸对照表

47.803
46.324
44.854
+0.180
0
+0.640
0
0
-0.180
0-0.3600来自-0.3600
-0.360
G2″×11
59.614
58.135
56.656
+0.180
0
+0.640
0
0
-0.180
0
-0.360
0
-0.360
0
-0.360
G2.1/2”X11
75.184
73.705
72.226
8.917
+0.150
0
+0.236
0
+0.190
0
+0.300
0
-0.026
-0.138
-0.026
-0.206
M12X1
12
11.350
10.917
+0.160
0
+0.236
0
+0.200
0
+0.300
0
-0.026
-0.144
-0.026
-0.206
M14X1
14
13.350
12.917
+0.160
48.054
46.287
44.520
18.5
10.688
Z2″×11.5
60.092
58.325
56.558
19
11.074
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

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

0
+0.224
0
+0.335
0
-0.028
-0.160
-0.028
-0.240
M12X1.5
12
11.026
10.376
+0.190
0
+0.300
0
+0.236
0
+0.375
0
-0.032
-0.172
-0.032
-0.268
M14X1.5
14
13.026
12.376
+0.190
0
+0.300
0
+0.236
0
-0.360
G1.1/2″×11
47.803
46.324
44.854
+0.180
0
+0.640
0
0
-0.180
0
-0.360
0
-0.360
0
-0.360
G2″×11
59.614
58.135
56.656
+0.180
0
+0.640
0
0
-0.180
0
-0.360
0
-0.360
0
-0.360
G2.1/2”X11
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″×27
10.272
9.519
8.766
7
4.572
Z1/4″×18