美制六角螺栓标准对照表

Roc-master
®
Manufacturer & Supply Company
上海锐迈五金有限公司
Roc-Master
®
Hardware Co..,Ltd.
吉安锐迈管道配件有限公司
Roc-master ® Jian Piping Products Co.,Ltd.
紧固件
Fasteners
ANSI/ASME STANDARD
Contents
美制六角螺栓1 HEX BOLTS
ANSI / ASME B 18.2.1
美制精制六角螺栓2 HEX CAP SCREWS （FINSHED HEX BOLTS）
ANSI / ASME B 18.2.1
美制双头螺栓及螺母3 STUD BOLTS AND NUTS
ASTM A193 B7 & A194 2H
美制六角螺母4 FINISHED HEX NUTS
ANSI / ASME B 18.2.2
美制重型六角螺母5 HEAVY HEX NUTS
ANSI / ASME B 18.2.2
美制平垫圈6 PLAIN WASHERS TYPE A
ANSI / ASME B 18.22.1
美制弹簧垫圈7 LOCK WASHERS
ANSI / ASME B 18.21.1
螺栓及螺母材质要求8 MATERIAL SPECIFICATIONS FOR BOLTS AND NUTS
螺栓及螺母机械性能要求9 TENSILE AND HARDNESS REQUIREMENTS FOR BOLTS AND NUTS
10法兰用螺栓尺寸对照表
DIMENSIONS OF FLANGE BOLTS (ANSI B16.5)
金属紧固件表面处理技术简介11 BRIFE INTRODUCTION OF SURFACE TREATMENT OF FASTENERS
美制六角螺栓
HEX BOLTS
ANSI / ASME B18.2.1
Inches
E
For Bolt Lengths ≤6 in.For Bolt Lenghts
>6 in.Max Basic Max Min Max Min Basic Max Min Max Min Basic
Basic 1/40.25000.267/160.4380.4250.5050.48411/640.1880.1500.030.010.750 1.0005/160.31250.3241/20.5000.4840.5770.5527/320.2350.1950.030.010.875 1.1253/80.37500.3889/160.5620.5440.6500.6201/40.2680.2260.030.01 1.000 1.2507/160.43750.4525/80.6250.6030.7220.68719/640.3160.2720.030.01 1.125 1.3751/20.50000.5153/40.7500.7250.8660.82611/320.3640.3020.030.01 1.250 1.5005/80.62500.64215/160.9380.9060.983 1.03327/640.4440.3780.060.02 1.500 1.7503/40.75000.768 1 1/8 1.125 1.088 1.299 1.2401/20.5240.4550.060.02 1.750 2.0007/80.87500.895 1 5/16 1.312 1.269 1.516 1.44737/640.6040.5310.060.02 2.000 2.2501 1.0000 1.022 1 1/2 1.500 1.450 1.732 1.65343/640.7000.5910.090.03 2.250 2.5001 1/8 1.1250 1.149 1 11/16 1.688 1.631 1.949 1.8593/40.7800.580.090.03 2.500 2.7501 1/4 1.2500 1.277 1 7/8 1.875 1.812 2.165 2.06627/320.8760.7490.090.03 2.750 3.0001 3/8 1.3750 1.404 2 1/16 2.062 1.994 2.392 2.27329/320.9400.8100.090.03 3.000 3.2501 1/2 1.5000 1.531 2 1/4 2.250 2.175 2.598 2.4801 1.0360.9020.090.03 3.250 3.5001 3/4 1.7500 1.785 2 5/8 2.625 2.538 3.031 2.893 1 5/32 1.196 1.0540.120.04 3.750 4.0002 2.0000 2.0393 3.000 2.900 3.464 3.306 1 11/32 1.388 1.1750.120.04 4.250 4.5002 1/4 2.2500 2.305 3 3/8 3.375 3.262 3.897 3.719 1 1/2 1.548 1.3270.190.06 4.750 5.0002 1/2 2.5000 2.559 3 3/4 3.750 3.625 4.330 4.133 1 21/32 1.708 1.4790.190.06 5.250 5.5002 3/4 2.7500 2.827 4 1/8 4.125 3.988 4.763 4.546 1 13/16 1.869 1.6320.190.06 5.750 6.0003 3.0000 3.081 4 1/2 4.500 4.350 5.196 4.9592 2.060 1.8150.190.06 6.250 6.5003 1/4 3.2500 3.335 4 7/8 4.875 4.712 5.629 5.372 2 3/16 2.251 1.9360.190.06 6.7507.0003 1/2 3.5000 3.589 5 1/4 5.250 5.075 6.062 5.786 2 5/16 2.380 2.0570.190.067.2507.5003 3/4 3.7500 3.858 5 5/8 5.625 5.437 6.495 6.198 2 1/2 2.572 2.2410.190.067.7508.0004 4.0000
4.111
6 6.000 5.800 6.928 6.612 2 11/16 2.764 2.4240.190.06
8.250
8.500
LT(Ref)Thread Length
Width Across
Flats Width Across Comers
Head Height
F G H Body
Dia
Radius of Fillet
Nominal Size
or Basic
Bolt Dia
R
美制精制六角螺栓
HEX CAP SCREWS
ANSI / ASME B18.2.1
Inches
J
R
Y For Bolt Lengths ≤6 in.For Bolt Lenghts
>6 in.Max MIN Basic Max
Min Max Min Basic Max Min Min Max Max Min Max Min Min Basic Basic Max 1/40.25000.25000.257/160.440.4280.5050.4885/320.1630.1500.0160.0100.3000.2800.0870.0430.0150.750 1.0000.2505/160.31250.31250.311/20.5000.4890.5770.55713/640.2110.1950.1400.0110.3620.3420.0870.0430.0150.875 1.1250.2783/80.37500.37500.379/160.5620.5510.6500.62815/640.2430.2260.1600.0120.4250.4050.0870.0430.015 1.000 1.2500.3127/160.43750.43750.435/80.6250.6120.7220.6989/320.2910.2720.1950.0130.4880.4680.0870.0430.015 1.125 1.3750.3851/20.50000.50000.493/40.7500.7360.8660.8405/160.3230.3020.2150.0140.5500.5300.0870.0430.015 1.250 1.5000.4179/160.56250.56250.554513/160.8120.7980.9380.91023/640.3710.3480.2500.0150.6520.6020.1570.0780.020 1.375 1.6250.4555/80.62500.62500.6215/160.9380.9220.983 1.05125/640.4030.3780.2690.0170.7150.6650.1570.0780.020 1.500 1.7500.5003/40.75000.75000.74 1 1/8 1.125 1.100 1.299 1.25415/320.4830.4550.3250.0200.8400.7900.1570.0780.020 1.750 2.0000.5567/80.87500.87500.87 1 5/161.312 1.285 1.516 1.46535/640.5630.5310.3780.023 1.0050.9550.2270.1130.040 2.000 2.2500.6251 1.00001.00000.99001 1/2 1.500 1.469 1.732 1.67539/640.6270.5910.4160.026 1.190 1.1200.3320.1660.060 2.250 2.5000.7141 1/8 1.12501.1250 1.111 11/161.688 1.631 1.949 1.85911/160.7180.580.4610.029 1.315 1.2450.3320.1660.060 2.500 2.7500.7141 1/4 1.25001.2500 1.24 1 7/8 1.875 1.812 2.165 2.06625/320.8130.7490.5300.033 1.440 1.3700.3320.1660.060 2.750 3.0000.8331 3/8 1.37501.3750 1.36 2 1/162.062 1.994 2.392 2.27327/320.8780.8100.5690.036 1.565 1.4950.3320.1660.060 3.000 3.2500.8331 1/2 1.50001.50001.48802 1/4 2.250 2.175 2.598 2.48015/160.9740.9020.6400.039 1.690 1.6200.3320.1660.060 3.250 3.500 1.0001 3/4 1.75001.7500 1.74 2 5/8 2.625 2.538 3.031 2.8931 3/321.134 1.0540.7480.046 1.940 1.8700.3320.1660.060 3.750 4.000 1.0002 2.00002.0000 1.993 3.000 2.900 3.464 3.3061 7/321.263 1.1750.8250.052 2.190 2.1200.3320.1660.060 4.250 4.500 1.1112 1/4 2.25002.2500 2.24 3 3/8 3.375 3.262 3.897 3.719 1 3/8 1.423 1.3270.9330.059 2.440 2.3700.3320.1660.060 4.750 5.000 1.1112 1/2 2.50002.50002.48803 3/4 3.750 3.625 4.330 4.1331 17/321.583 1.479 1.0420.065 2.690 2.6200.3320.1660.060 5.250 5.500 1.2502 3/4 2.75002.7500 2.74 4 1/8 4.125 3.988 4.763 4.5461 11/161.744 1.632 1.1510.072 2.940 2.8700.3320.1660.060 5.750 6.000 1.2503
3.00003.00002.9880 4 1/2
4.500 4.350
5.196
4.959 1 7/8 1.935 1.815
1.2900.079
3.190
3.120
0.332
0.166
0.060
6.250
6.500
1.250
Thread Length
Transition Thread Length Runout
of
Bearing
Surface FIR
LT(Ref)Wren-Ching
Heigh
t
E
Body Dia
Radius of Fillet La Fillet Length Fillet Transition
Dia Ea Nominal Size or Basic Bolt Dia
F G H
Width Across
Flats
Width Across Comers Head Height
Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853
美制双头螺栓及螺母STUD BOLTS AND NUTS ASTM A193 B7 & A194 2H
ASME B1.1 (UNC/8UN)
美制六角螺母
FINISHED NUTS
ANSI / ASME B 18.2.2
F
H G Kgs.per 1000
1/40.25000.4380.2260.505 3.335/160.31250.5000.2730.577 4.993/80.37500.5620.3370.6507.267/160.43750.6880.3850.79412.881/20.50000.7500.4480.86617.019/160.56250.8750.496 1.01026.445/80.62500.9380.559 1.08333.253/40.7500 1.1250.665 1.29953.987/80.8750 1.3120.776 1.51686.181 1.0000 1.5000.887 1.732128.371 1/8 1.1250 1.6880.999 1.949182.801 1/4 1.2500 1.975 1.049 2.165246.301 3/8 1.3750 2.062 1.206 2.382331.131 1/2
1.5000
2.250 1.317 2.598427.74
Thread:UNC, UNF, Class 2B.
d
美制重型六角螺母
HEAVY HEX NUTS
ANSI / ASME B 18.2.2
F
H G Kgs.per 1000
1/20.50000.8750.504 1.01029.679/160.56520.9380.568 1.08336.975/80.6250 1.0620.631 1.22753.983/40.7500 1.2500.758 1.44387.547/80.8750 1.4380.885 1.660134.721 1.0000 1.625 1.012 1.876192.741 1/8 1.1250 1.812 1.139 2.093268.531 1/4 1.2500 2.000 1.251 2.390356.531 3/8 1.3750 2.188 1.378 2.526462.671 1/2 1.5000 2.375 1.505 2.742594.221 5/8 1.6250 2.562 1.632 2.959734.831 3/4 1.7500 2.750 1.759 3.175925.341 7/8 1.8750 2.938 1.886 3.3921093.182
2.0000
3.125 2.013 3.6081356.26
Thread:UNC, UNF, Class 2B.
d
美制平垫圈
PLAIN WASHERS TYPE A
ANSI / ASME B 18.22.1
Plus Minus
Plus Minus
--0.078
0.0000.0050.188
0.0000.0050.0200.0250.016--0.0940.0000.0050.2500.0000.0050.0200.0250.016--0.1250.0080.0050.3120.0080.0050.0320.0400.025No.
60.1380.1560.0080.0050.3750.0150.0050.0490.0650.03680.1640.1880.0080.0050.4380.0150.0050.0490.0650.036100.1900.2190.0080.0050.5000.0150.0050.0490.0650.0363/160.1880.2500.0150.0050.5620.0150.0050.0490.0650.036120.2160.2500.0150.0050.5620.0150.0050.0650.0800.0511/40.250N 0.2810.0150.0050.6250.0150.0050.0650.0800.0511/40.250W 0.3120.0150.0050.7340.0150.0070.0650.0800.0515/160.312N 0.3440.0150.0050.6880.0150.0070.0650.0800.0515/160.312W 0.3750.0150.0050.8750.0300.0070.0830.1040.0643/80.375N 0.4060.0150.0050.8120.0150.0070.0650.0800.0513/80.375W 0.4380.0150.005 1.0000.0300.0070.0830.1040.0647/160.438N 0.4690.0150.0050.9220.0150.0070.0650.0800.0517/160.438W 0.5000.0150.005 1.2500.0300.0070.0830.1040.0641/20.500N 0.5310.0150.005 1.0620.0300.0070.0950.1210.07441/20.500W 0.5620.0150.005 1.3750.0300.0070.1090.1320.0869/160.562N 0.5940.0150.005 1.1560.0300.0070.0950.1210.0749/160.562W 0.6250.0150.005 1.4690.0300.0070.1090.1320.0865/80.625N 0.6560.0300.007 1.3120.0300.0070.0950.1210.0745/80.625W 0.6880.0300.007 1.7500.0300.0070.1340.1600.1083/40.750N 0.8120.0300.007 1.4690.0300.0070.1340.1600.1083/40.750W 0.8120.0300.007 2.0000.0300.0070.1480.1770.1227/80.875N 0.9380.0300.007 1.7500.0300.0070.1340.1600.1087/80.875W 0.9380.0300.007 2.2500.0300.0070.1650.1920.1361 1.000N 1.0620.0300.007 2.0000.0300.0070.1340.1600.1081 1.000W 1.0620.0300.007 2.5000.0300.0070.1650.1920.1361 1/8 1.125N 1.2500.0300.007 2.2500.0300.0070.1340.1600.1081 1/8 1.125W 1.2500.0300.007 2.7500.0300.0070.1650.1920.1361 1/4 1.250N 1.3750.0300.007 2.5000.0300.0070.165 1.1920.1361 1/4 1.250W 1.3750.0300.007 3.0000.0300.0070.1650.1920.1361 3/8 1.375N 1.5000.0300.007 2.7500.0300.0070.1650.1920.1361 3/8 1.375W 1.5000.0450.010 3.2500.0450.0100.1800.2130.1531 1/2 1.500N 1.6250.0450.007 3.0000.0300.0070.1650.1920.1361 1/2 1.500W
1.6250.0450.010 3.5000.0450.0100.1800.2130.1531 5/8 1.625 1.7500.0450.010 3.7500.0450.0100.1800.2130.1531 3/4 1.750 1.8750.0450.010 4.0000.0450.0100.1800.2130.1531 7/8 1.875
2.0000.0450.010 4.2500.0450.0100.1800.2130.1532 2.000 2.1250.0450.010 4.5000.0450.0100.1800.2130.1532 1/4 2.250 2.3750.0450.010 4.7500.0450.0100.2200.2480.1932 1/2 2.500 2.6250.0450.010 5.0000.0450.0100.2380.2800.2102 3/4 2.750 2.8750.0650.010 5.2500.0650.0100.2590.3100.2283
3.000
3.125
0.065
0.010
5.500
0.065
0.010
0.284
0.327
0.249
C
Inside Diameter
Tolerance
Basic
Max.
Min.
Thickness Nominal Washer Size
Basic
Tolerance
Basic
A B
Outside Diameter
美制弹簧垫圈
LOCK WASHERS
ANSI / ASME B 18.22.1
Inches
B
W T+1/2WIDTH THICKNESS Min.Max.Max.Min.Min.No.
60.1410.1480.2500.0470.03180.1680.1750.2930.0550.040100.1940.2020.3340.0620.047120.2210.2290.3370.0700.0561/40.2550.2630.4890.1090.0625/160.3180.3280.5860.1250.0783/80.3820.3930.6830.1410.0947/160.4460.4590.7790.1560.1091/20.5090.5230.8730.1710.1259/160.5720.5870.9710.1880.1415/80.6260.653 1.0790.2030.1563/40.7630.783 1.2710.2340.1887/80.8900.912 1.4640.2660.2191 1.017 1.042 1.6610.2970.2501 1/8 1.144 1.172 1.8530.3280.2811 1/4
1.271 1.302
2.045
0.3590.312
WASHER SECTION Size
INSIDE DIAMETER OUTSIDE DIAMETER
A
螺栓及螺母材质要求
MATERIAL SPECIFICATIONS FOR BOLTS AND NUTS
TYPESPECIFIC
GRADE
IDENTIFI
C SYMBOL
C
Mn
P max
S max
Si
Ni
Cr
Mo
OTHER ELEMENTS
A307-94--A B ----0.0600.0400.1500.050--------A354-03a
-BC-BD 0.28-0.55≤1 1/2"0.33-0.55>1 1/2"
-0.0400.045---
-
A193-03♠
B5
B6，B6X B7，B7M B165%Cr 12%Cr Cr-Mo Cr-Mo-V 0.10min 0.15max 0.37-0.490.36-0.47 1.00max 1.00max 0.65-1.100.45-0.700.0400.0400.0350.0350.0300.0300.0400.040 1.00max 1.00max 0.15-0.350.15-0.35---- 4.00-6.0011.50-13.500.75-1.200.80-1.150.40-0.65-0.15-0.250.50-0.65V0.25-0.35 AI 0.015
A320-03♣
L7,L7M,L70L7A,L71L7B,L72L7C,L73L43L1AISI4140AISI4037AISI4137AISI8740AISI4340
-0.38-0.480.35-0.400.35-0.400.38-0.430.18-0.430.17-0.240.75-1.000.70-0.900.70-0.900.75-1.000.60-0.830.70-1.400.0350.0350.0350.0350.0350.0350.0400.0400.0400.0400.0400.0500.15-0.350.15-0.350.15-0.350.15-0.350.15-0.350.15-0.30---0.40-0.701.65-2.00
-0.80-1.10
-0.80-1.100.40-0.600.70-0.90
-0.15-0.250.20-0.300.15-0.250.20-0.300.20-0.30
- B 0.0001-0.003
F O R S P E C I A L A P P L I C A T I O N S A540-00
B21B22B23B24B24V Cr-Mo-V 4142-H E4340-H 4340 Mod.4340V Mod.0.36-0.440.39-0.460.37-0.440.37-0.440.37-0.440.45-0.700.65-1.100.60-0.950.70-0.900.60.0.950.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.15-0.350.15-0.350.15-0.350.15-0.350.15-0.35--1.55-2.001.65-2.001.55-2.000.80-1.150.75-1.200.65-0.950.70-0.950.60-0.950.50-0.650.15-0.250.20-0.300.30-0.400.40-0.60V0.25-0.35
V0.04-0.10
A193-03♠
B8,B8A B8C,B8CA B8M,B8MA,B8M2,B8M3B8P,B8PA B8N,B8NA B8MN,B8MNA B8MLCuN B8MLCuNA B8T,B8TA B8R,B8RA B8S,B8SA B8LN,B8LNA B8MLN,B8MLNA
AISI 304AISI 347AISI 316AISI 305AISI 30451AISI 31651S31254AISI 321S20910S21800AISI 30453AISI 316530.08max 0.08max 0.08max 0.12max 0.08max 0.08max 0.02max 0.08max 0.06max 0.10max 0.03max 0.03max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 1.00max 2.00max 4.00-6.007.00-9.002.00max 2.00max 0.0450.0450.0450.0450.0450.0450.0300.0450.0450.0600.0450.045
0.0300.0300.0300.0300.0300.0300.0100.0300.0300.0300.0300.030
1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 0.80max 1.00max 1.00max 3.50-4.501.00max 1.00max 8.0-11.09.0-1
2.010.0-14.011.0-1
3.08.0-11.010.0-13.017.6-18.59.0-12.011.5-13.58.0-9.08.0-11.010.0-13.018.0-20.017.0-19.016.0-18.017.0-19.018.0-20.016.0-18.019.5-20.517.0-19.020.5-23.516.0-18.018.0-20.016.0-18.0--2.00-3.00--2.00-3.006.00-6.50
-1.50-3.00
--2.00-3.00nb+ta=10xc,min;1.10max
N 0.10-0.16N 0.10-0.16
N 0.18-0.22 Co 0.50-1.00Ti=5X(C+N)min;0.70max N 0.2-0.4 Co 0.1-0.3 V 0.1-0.3
N0.08-0.18N0.10-0.16N0.10-0.16
A320-03♣
B8,B8A B8C,B8CA B8T,B8TA B8P,B8PA B8F,B8FA B8M,B8MA B8LN.B8LNA B8MLN,B8MLNA
AISI 304AISI 347AISI 321AISI 305303303Se AISI 316AISI 304N AISI 316N 0.08max 0.08max 0.08max 0.08max 0.15max 0.15max 0.08max 0.03max 0.03max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 0.0450.0450.0450.0450.2000.2000.0450.0450.0450.0300.0300.0300.0300.15min 0.0600.0300.0300.030 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 8.0-10.59.0-13.09.0-12.010.5-13.08.0-10.08.0-10.010.0-14.08.0-10.510.0-14.018.0-20.017.0-19.017.0-19.017.0-19.017.0-19.017.0-19.016.0-18.018.0-20.016.0-18.0------2.00-3.00
-2.00-3.00
nb+ta=10xc,min Ti=5xC,min
Se 0.15-0.35N 0.10-0.16N0.10-0.16
F O R B O L T I N
G
H
I G H -T E M P E R .
A453-03♠
S66286S63198S66220S66545
660651662665
0.08max 0.28-0.350.08max 0.08max
2.00max 0.75-1.500.40-1.001.25-2.00
0.0400.0400.0400.040
0.0300.0300.0300.030
1.00max 0.30-0.800.40-1.000.10-0.80
24.0-27.08.0-11.024.0-28.024.0-28.0
13.5-16.018.0-21.012.0-15.012.0-15.0
1.00-1.501.00-1.75
2.0-
3.51.25-2.25Ti 1.90-2.35 AI 0.35max V0.10-0.50 B 0.001-0.01W 1.00-1.75 Ti 0.10-0.35 Nb 0.25-0.60Ti 1.80-2.10 AI 0.35max Cu0.50max B0.001-0.01Ti 0.35max AI 0.25max Cu0.01-0.07
MATERIAL SPECIFICATIONS FOR NUTS A307-04-B --0.0400.050----A194-03b ♦ 2.2H, 2HM -0.40min 1.00max
0.040
0.0500.40max ---A L L O Y S T E E L S
A194-03B
♦
47.7M AISI 4140/4142/4145/4140H/4142H/4145H 0.40-0.500.37-0.490.70-0.900.65-1.100.0350.0350.0400.040
0.15-0.350.15-0.35---0.75-1.20
0.20-0.300.15-0.25
S T A I N L E S S S T E E L S
A194-03B
♦8F,8FA
8.8A 8C,8CA 8M,8MA 8T,8TA 8F,8FA 8F,8FA
AISI 304AISI 347AISI 316AISI 321AISI 303AISI 303se
0.08max 0.08max 0.08max 0.08max 0.015min 0.015max
2.00max 2.00max 2.00max 2.00max 2.00max 2.00max
0.0450.0450.0450.0450.0200.0200.0300.0300.0300.0300.15min 0.060 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max
8.00-11.009.00-12.0010.00-14.009.00-12.008.00-10.008.00-10.00
18.00-20.0017.00-19.0016.00-18.0017.00-19.0017.00-19.0017.00-19.00--2.00-3.00---
Co+Ta=10xC. Min Ti=5X(C+N)min; 0.70max
Se=0.15 min
♣ - FOR LOW - TEMPERATURE SERVICE
♠ - FOR HIGH-TEMPERATURE SERVICE
♦ - FOR BOLTS FOR HIGH-PRESSURE AND HIGH-TEMPERATURE SERVICE
A C C .I N O S S I D A
B I L I 0S T A I N L E S S S .
C A R N O N
S T E E L S
ASTM Specifications
CHEMICAL REQUIREMENTS %
A C C I A I L E G A T I -A L L O Y S T E E L S C A R
B O N S T E E L S
螺栓及螺母机械性能要求
TENSILE AND HARDNESS REQUIREMENTS FOR BOLTS NUTS
min max min max
A307-A B 415
415
6060
18
121121241212696910095<3"<3"A354-03a
-BC 255235311311262236331/4" - 2 1/2">2 1/2"-BD 311293
363363
3331
3939
1/4" - 2 1/2">2 1/2"
A193-03
4-6%cr B5690100550801650≤4"13%Cr B6760110585851550≤4"13%Cr B6X 62090485701650≤4"Cr-Mo B78601257201051650≤2 1/2"Cr-Mo B7M 690100550801850≤2 1/2"Cr-Mo-V
B168601257251051850≤2 1/2"
A320-03
-
L7,L7A,L7B,L7C,L70,L71,L72,L73
8601257251051650L438601257251051650L7M 690100550801850L18601257251051650A540-00
B21
8271207241051550241285≤2"B228271207241051550248293≤2"B238271207241051550248311≤2"B24827
120
724
105
15
50
248
311
≤2"
B24V A193-03CLASS1&1D B8N,B8M,B8P B8LN,B8MLN CLASS1B8C,B8T CLASS1A B8A,B8CA,B8MA,B8PA,B8TA,B8LNA,B8NA,B8M
NA,B8MLCuNA CLASS1B&1D B8N,B8MN,B8MLCuN
55080240353040CLASS1C&1D B8R CLASS1C B8RA CLASS1C&1D B8S CLASS1C B8SA
CLASS28601256901001235CLASS2760110665961545CLASS2B
65595515752540A320-03CLASS1
B8,B8C,B8M,B8P,B8F,B
8T,B8LN,B8MLN 515
75
205
30
30
50
CLASS1A B8A,B8CA,B8MA,B8PA,B8FA,B8TA,B8LNA,B8M
LNA
8601256901001235≤3/4"7951155508015303/4-1"7251054506520351"-1 1/4"690100345502845 1 1/4" - 1 1/2"760110655951545≤3/4"6901005508025453/4" - 1"655954506525451"-1 1/4"62090345503045 1 1/4"-1 1/2"
A453-03
CLASS\B\C 66089513058585151824834124HRC 37HRC CLASS D 660895130725105151824832124HRC 35HRC 651690100485701835217277≤3"651690100415601835217277>3"65165595415601835212269≤3"65165595345501835212269>3"
CLASS A 66289513058585151824832124HRC 35HRC CLASS B 66286012555080151824832124HRC 35HRC CLASS A 6651170170830120121531138832HRC 41HRC CLASS B
665
1170
155
830
120
12
15
311
388
32HRC
41HRC
B Scale
A194-03B
215935284 min
2H 24832724-352HM,7M 15923722max 3,4,7,16
24832724-35
8,8C,8M,8T,8F,8P,8N 12630060-1058A,8CA,8MA,8TA 300192
60-90
ROCKWELL HARDNESS C Scale -
ATSM Specifications 29HRC 93HRB 28HRC CLASS A CLASS B TENSILE STRENGT H min.Ksi S min.0.2%Mpa YIELD
STRENGTH min.0.2%
offset
ksi 95HRB SPECIFIC
GRADE OR CLASS
GRADE OR SYMBOL
R
min
MPa
96HRB max 96HRB max 90HRB max ELONGAT.In 2" min %REDUTION
OF AREA %DIAMETERS 321HB max 26HRC max 35HRC max BRINELL ROCKWELL B-C Scale
HARDNESS 235HB max 321HB max
99HRB max 35HRC max
99HRB max
CLASS5
B8,B8C,B8P,B8T,B8N,B8M,B8MN,B8MLCuN,B8,B
8M2515
66569075
10095205
30
5550235HB max
30
223HB max
192HB max
233HB max 50
223HB max B8M
CLASS2
3535380345321HB max B8,B8C,B8P,B8F,B8T
321HB max 271HB max 271HB max 5555321HB max 35HRC max
35HRC max
96HRB max
90HRB max
23HB max
192HB max
96HRB max 28HRB max 28HRB max 35HRC max Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853
法兰用螺栓尺寸对照表
DIMENSIONS OF FLANGE BOLTS (ANSI B16.5)
Inches
Machin e Bolt Length 六角螺栓长度Machin e Bolt
Length 六角螺
栓长度Machin e Bolt Length 六角螺栓长度Machin
e Bolt
Length
六角螺
栓长度
Machin e Bolt Length 六角螺栓长度Machin e Bolt
Length
六角螺
栓长度0.06"Raised Face RF 面0.06"Raised Face RF 面Ring Joint RTJ 面
0.06"Raised Face RF 面
0.06"Raised Face RF 面
Ring Joint RTJ 面0.25"
Raised Face RF 面Mate-Female
Tongue-Groove.凹凸面，舌槽面
Ring Joint
RTJ 面
0.25"Raised Face RF 面Mate-Female
Tongue-Groove.凹凸面，舌
槽面
Ring Joint
RTJ 面0.25"
Raised Face RF 面
Mate-Female Tongue-Groove.凹凸面，舌槽面Ring Joint RTJ 面
0.25"Raised Face RF 面Mate-Female
Tongue-Groove.凹凸面，舌槽面
Ring Joint RTJ 面1/241/2 2.00 2.25-41/2 2.25 2.50 3.0041/2 3.00 2.75 3.0043/4 4.25 4.00 4.2543/4 4.25 4.00 4.2543/4 4.75 4.50 4.753/441/2 2.00 2.50-45/8 2.50 3.00 3.5045/8 3.50 3.25 3.5043/4 4.50 4.25 4.5043/4 4.50 4.25 4.5043/4 5.00 4.75 5.00141/2 2.25 2.50 3.0045/8 2.50 3.00 3.5045/8 3.50 3.25 3.5047/8 5.00 4.75 5.0047/8 5.00 4.75 5.0047/8 5.50 5.25 5.501 1/441/2 2.25 2.75 3.2545/8 2.75 3.25 3.7545/8 3.75 3.50 3.7547/8 5.00 4.75 5.0047/8 5.00 4.75 5.0041 6.00 5.75 6.001 1/245/8 2.50 2.75 3.2543/4 3.00 3.50 4.0043/4 4.25 4.00 4.2541 5.50. 5.25 5.5041 5.50 5.25 5.504 1 1/8 6.75 6.50 6.75245/8 2.75 3.25 3.7545/8 3.00 3.50 4.0085/8 4.25 4.00 4.2587/8 5.75 5.50 5.7587/8 5.75 5.50 5.75817.00 6.757.002 1/245/8 3.00 3.50 4.0043/4 3.25 4.00 4.5083/4 4.75 4.50 4.7581 6.25 6.00 6.2581 6.25 6.00 6.258 1 1/87.757.508.00345/8 3.00 3.50 4.0043/4 3.50 4.25 4.7583/4 5.00 4.75 5.008
7/8
5.75
5.50 5.758 1 1/87.00
6.75
7.008 1 1/4
8.758.50
9.003 1/285/8 3.00 3.50 4.0083/4 3.75 4.25 5.0087/8 5.50 5.25 5.50483/4 3.00 3.50 4.0083/4 3.75 4.50 5.0087/8 5.75 5.50 5.758 1 1/8 6.75 6.50 6.758 1 1/47.757.507.758 1 1/210.009.7510.25583/4 3.25 3.75 4.2583/4 4.25 4.75 5.2581 6.50 6.25 6.508 1 1/47.507.257.508 1 1/29.759.509.758 1 3/411.7511.5012.25683/4 3.25 4.00 4.5083/4 4.25 4.75 5.50121 6.75 6.50 6.7512 1 1/87.507.257.7512 1 3/810.2510.0010.508213.5013.2514.00883/4 3.50 4.25 4.7587/8 4.75 5.50 6.0012 1 1/87.507.257.7512 1 3/88.758.508.7512 1 5/811.5011.2512.7512215.0014.7515.5010127/8 4.00 4.50 5.00121 5.50 6.25 6.7516 1 1/48.508.258.5016 1 3/89.259.009.2512 1 7/813.2513.0013.5012 2 1/219.2519.0020.0012127/8 4.00 4.75 5.2512 1 1/8 5.75 6.757.2520 1 1/48.758.508.7520 1 3/810.009.7510.0016214.7514.5015.2512
2 3/4
21.25
21.00
22.00
14121 4.50 5.25 5.7512 1 1/8 6.257.007.5020 1 3/89.259.009.2520 1 1/210.7510.5011.0016 2 1/416.0015.7516.7516161 4.50 5.25 5.7516 1 1/4 6.507.508.0020 1 1/210.009.7510.0020 1 5/811.2511.0011.5016 2 1/217.5017.2518.501816 1 1/8 5.00 5.75 6.2516 1 1/4 6.757.758.2520 1 5/810.7510.5010.7520 1 7/812.7512.5013.2516 2 3/419.5019.2520.7520
20
1 1/8
5.50
6.25
6.75
20
1 1/4
7.25
8.008.7524 1 5/811.2511.0011.5020213.7513.5014.2516321.2521.0022.252420 1 1/4 6.00 6.757.2520 1 1/28.009.00
10.00
24
1 7/8
13.00
12.75
13.25
20
2 1/2
17.25
17.00
18.00
16
3 1/2
24.25
24.00
25.50
Length of stud bolt dows not include the height of the chamfered part.双头螺栓长度不包括倒角高度
法兰尺寸>24"时
螺栓直径=螺栓孔直径-3mm
RF面法兰 螺栓长度=2x法兰厚度+3mm+2x螺栓直径+1/2"RTJ面法兰 螺栓长度=2x法兰厚度+RTJ高度+3x螺栓直径
双头螺栓重量计算公式：直径x直径x6.17x长度/1000x1.1=千件重量（KG）
2500LB
Diam. Of Bolts
螺栓直径Stud Bolr Length
双头螺栓长度
Nu mbe r of Hol es 法兰
孔
数量
300LB
Nu
mbe
r of Hol es 法兰孔数量
Nu mbe r of Hol es 法兰孔
数量Nu
mbe r of Hol es 法兰孔数量
Nu mbe
r of Hol es 法兰孔
数
量900LB
Diam. Of Bolts
螺栓直径Stud Bolr Length 双头螺栓长度1500LB
Diam. Of
Bolts 螺栓直径Stud Bolr Length 双头螺栓长度600LB
Stud Bolr Length 双头螺栓长度Diam. Of Bolts
螺栓直
径Diam. Of
Bolts 螺栓直径150LB
Stud Bolr Length 双头螺栓长度Nom.
Pipe
Size
法兰尺
寸Stud Bolr Length 双头螺栓长度Nu mbe r of Hol es 法兰孔数量Diam. Of Bolts 螺栓直径Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853
金属紧固件表面处理技术简介
BRIEF INTRODUCTION OF SURDACE TREARMENTS OF FASTENERS
电镀锌（Zinc Electroplating）
电镀锌技术是一种传统的金属表面涂层处理技术它为金属表面提供基本的抗腐蚀性。

热浸镀锌（Hot Dip. Galvanlzatlon）
热浸镀锌层具有良好的抗腐蚀性，对钢铁基本体具有牺牲保护作用 ，高耐气候性，抗盐水腐蚀。

适用于化工厂，精炼厂以及沿海和海上的作业平台。

达克罗涂层（Dacromet Coatings）
达克罗是Dacromet的中文译音，又称锌铬膜、达克锈、达克曼等， 在即将发步的我国有关达克罗的标准中称为“锌铬涂层“ （Zinc/Chromate Coatings），是一种类似电镀锌的金属涂层处理技术。

达克罗涂层外观均为银灰色，涂层中含有80%的薄锌片和铝片，其余均为铬酸盐，具有优良的性能，如极强的抗腐蚀能性；比电镀锌提高7-10倍； 盐雾实验 >500小时；无氢脆；特别适用于高强度受力件如用于地铁工程的高强度螺栓；高耐热性；耐热温度300°C。

此外,还具有高渗透性、高附着性、高减磨性、高耐气候性、高耐化学品稳定性及无环境污染等优点。

镀镉（Cadmium Electroplating）
镀镉层属阳级镀层，主要用于技术性防腐蚀。

它的主要优点是有良好的钎焊性 和适宜的接触电阻。

由于润滑性能好,镀镉层常用于航空、航天、航 海及无线电和 电子产品.镀镉层对钢铁基体起着机械和电化学双重保护作用， 因此其防腐蚀性能大大优于锌镀层。

但是镀镉工艺的成本高（约为镀锌5倍），对环境污染严重，因而在设计上往往用镀锌层代替。

聚四氟乙烯涂层（PTFE Coatings）
聚四氟乙烯涂层的防粘贴作用十分显著，是所有含氟聚合物中最耐热的物质，几乎可以抵抗所有的化学物质侵蚀。

极低的的磨擦系数，优良的抗磨损性及良好的化学稳定性。

聚四氟乙烯涂层的操作温度最好可达300°C。

它的应用厚度通常为25-75微米。

Xylan涂层（Xylan Coatings）
Xylan涂层是含氟聚合物的一种，大多数的Xylan涂层中含有PTFE和其他润滑成分，一般以薄膜的形式应用于各种金属组件和紧固件的表面处理。

有良好的润滑性，抗腐蚀性，抗磨损性，高减磨性。

此外，还具有特有的不粘贴性，高耐化学品稳定性及无环境污染等优点。

热浸镀铝（Hot Dip. Alumlnum Plating）
将钢材或制品置入在一定温度下的熔融铝液中，浸渍适当的时间后，钢材表面形成合金铝层的一项新型的镀层工艺。

热浸镀铝钢材兼有钢的基本高强度和铝层的耐腐蚀性、抗磨损、耐高温等特性。

其耐腐蚀性是镀锌钢材的5-10倍；耐硫化物和耐腐蚀方面，其性能优于18-8不锈钢，可耐600°C的高温，具有明显的经济效益。

Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853 。