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ISO 3506-2 - 2020 Mechanical properties of corrosion-resistant stainless steel fasteners - Nuts with specified grades and property classes bsi.

螺栓、螺钉和螺柱的性能等级
Property class of bolts, screws and studs
45 50 60 70 80 100 110
标准螺母和高螺母(1型和2型) 搭配螺母的最小性能等级
薄螺母 (0型)
45 50 60 70 80 100 110
022 025 030 035 040 050 055
对于全承载能力紧固件,通常搭配使用标准螺母( 1 型)和高螺母( 2 类型)。
对于全金属有效力矩型螺母,只能将相同性能等级的螺栓和螺母搭配使用。
薄螺母( 0 型)的承载能力降低了,因此螺纹有脱落的可能。当薄螺母当作锁紧螺母使用时,应与标准螺母( 1 型)或高螺母( 2 型)搭配一起使用。
对于表中未规定的其他组合,在安装应用前,建议先检查紧固件的兼容性。
化学成分(质量分数) % / a
Chemical composition (cast analysisi, mass fraction in %)
C C Si Mn P S S Cr Cr
A1 奥氏体
A2
A3
A4
A5
A8
C1 马氏体
C3
C4
F1 铁素体
D2 双相
D4
D6
D8
/ 0.12 1 6.50 0.020 0.15 0.350 16.0 19.0
/ 0.1 1 2.00 0.050 / 0.030 15.0 20.0
/ 0.08 1 2.00 0.045 / 0.030 17.0 19.0
/ 0.08 1 2.00 0.045 / 0.030 16.0 18.5
/ 0.08 1 2.00 0.045 / 0.030 16.0 18.5
/ 0.03 1 2.00 0.040 / 0.030 19.0 22.0
0.09 0.15 1 1.00 0.050 / 0.030 11.5 14.0
0.17 0.25 1 1.00 0.040 / 0.030 16.0 18.0
0.08 0.15 1 1.50 0.060 0.15 0.350 12.0 14.0
/ 0.08 1 1.00 0.040 / 0.030 15.0 18.0
/ 0.04 1 6.00 0.040 / 0.030 19.0 24.0
/ 0.04 1 6.00 0.040 / 0.030 21.0 25.0
/ 0.03 1 2.00 0.040 / 0.015 21.0 23.0
/ 0.03 1 2.00 0.035 / 0.015 24.0 26.0
化学成分(质量分数) % / a
Chemical composition (cast analysisi, mass fraction in %)
Mo Mo Ni Ni Cu Cu N N 其他元素及备注
A1 奥氏体
A2
A3
A4
A5
A8
C1 马氏体
C3
C4
F1 铁素体
D2 双相
D4
D6
D8
/ 0.70 5.0 10.0 1.75 2.25 / / c,d,e
/ f / f 8.0 19.0 / 4.00 / / g,h
/ f / f 9.0 12.0 / 1.00 / / 5C≤Ti≤0.80 and/or 10C≤Nb≤1.00
2.00 3.00 10.0 15.0 / 4.00 / / h,i
2.00 3.00 10.5 14.0 / 1.00 / / 5C≤Ti≤0.80 and/or 10C≤Nb≤1.00 i
6.00 7.00 17.5 26.0 / 1.50 / / /
/ / / 1.0 / / / / i
/ / 1.5 2.5 / / / / /
/ 0.60 / 1.0 / / / / c,i
/ f / f / 1.0 / / / / j
0.10 1.00 1.5 5.5 / 3.00 0.05 0.20 Cr+3.3Mo+16N≤24.0 k
0.10 2.00 1.0 5.5 / 3.00 0.05 0.30 24.0<Cr+3.3Mo+16N k
2.50 3.50 4.5 6.5 / / 0.08 0.35 /
3.00 4.50 6.0 8.0 / 2.50 0.20 0.35 W≤1.00
①, a. 除已表明者外,均系最大值。
②, b. In case of dispute, product analysis applies.
③, c. 硒可以用来代替硫,但其使用可能受到限制。
d. 若镍的质量分数小于8%,则锰的最小质量分数必须为5%。
e. 镍的质量分数大于8%时,对铜的最小含量不予限制。
f. 钼含量可能在制造者的说明书中出现。但对某些使用场合,如有必要限定钼的极限含量,则必须在订单中由用户注明。
④, g. 如果铬的质量分数低于17%,则镍的最小质量分数应为12%。
h. 对最大碳的质量分数达到0.03%的奥氏体不锈钢,氮的质量分数最高可达到0.22%。
⑤, i. 对较大直径的产品,为达到规定的机械性能,在制造者的说明书中,可能含有较高的碳含量,但对奥氏体钢不应超过0.12%。
⑥, j. 可包括 钛 和/或 铌 以提高耐腐蚀性。
⑦, k. This formula is used solely for the purpose of classifying duplex steels in accordance with this document (it is not intended to be used as a selection criterion for corrosion resistance).
不锈钢组别
Stainless steel grade
A1 A2 A3 A1 A2 A3 A1 A2 A3 A4 A5 A4 A5 A4 A5 A4 A5 A8 A8 A8 D2 D4 D6 D8 D2 D4 D6 D8 D2 D4 D6 D8
类别
性能等级与标识 标准螺母(1型)和高螺母(2型)
保证应力 Sp / MPa
性能等级与标识 薄螺母(0型)
保证应力 Sp / MPa
奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 奥氏体 双相钢 双相钢 双相钢
50 70 80 50 70 80 100 70 80 100 70 80 100
500 700 800 500 700 800 1000 700 800 1000 700 800 1000
025 035 040 025 035 040 050 035 040 050 035 040 050
250 350 400 250 350 400 500 350 400 500 350 400 500
不锈钢组别
Stainless steel grade
C1-50 C1-70 C1-110 C3-80 C4-50 C4-70 F1-45 F1-60
性能等级与标识 标准螺母(1型)和高螺母(2型)
保证应力 Sp / MPa
性能等级与标识 薄螺母(0型)
保证应力 Sp / MPa
HV 所有螺母,硬度范围
HRC
HBW
50 70 110 80 50 70 45 60
500 700 1100 800 500 700 450 600
025 035 055 040 025 035 022 030
250 350 550 400 250 350 225 300
155~220 220~330 350~440 240~340 155~220 220~330 135~220 180~285
/ 20~34 36~45 21~35 / 20~34 / /
147~209 209~314 / 228~323 147~209 209~314 128~209 171~271
①, 淬火并回火,最低回火温度为275℃。
②, 螺纹公称直径≤24mm。
螺纹
M5 M6 M7 M8 M10 M12 M14 M16 M18
公称应力截面积 As / mm2
50 奥氏体及双相不锈钢
70
80
100
50 马氏体不锈钢
70
80
110
45 铁素体不锈钢
60
14.2 20.1 28.9 36.6 58.0 84.3 115 157 192
7 100 10 070 14 430 18 310 29 000 42 140 57 720 78 340 96 240
9 930 14 090 20 210 25 630 40 600 58 990 80 810 109 700 134 800
11 350 16 100 23 090 29 290 46 400 67 420 92 360 125 400 154 000
14 190 20 130 28 860 36 610 57 990 84 270 115 500 156 700 192 500
7 100 10 070 14 430 18 310 29 000 42 140 57 720 78 340 96 240
9 930 14 090 20 210 25 630 40 600 58 990 80 810 109 700 134 800
11 350 16 100 23 090 29 290 46 400 67 420 92 360 125 400 154 000
15 610 22 140 31 750 40 270 63 790 92 700 127 000 172 400 211 800
6 390 9 060 12 990 16 480 26 100 37 920 51 950 70 510 86 620
8 510 12 080 17 320 21 970 34 800 50 560 69 270 94 010 115 500
螺纹
M20 M22 M24 M27 M30 M33 M36 M39
公称应力截面积 As / mm2
50 奥氏体及双相不锈钢
70
80
100
50 马氏体不锈钢
70
80
110
45 铁素体不锈钢
60
245 303 353 459 561 694 817 976
122 400 151 700 176 300 229 800 280 300 346 800 408 400 487 900
171 400 212 400 246 800 321 600 392 500 485 500 571 800 683 100
195 900 242 800 282 100 367 600 448 500 554 900 653 400 780 700
244 800 303 400 352 600 459 500 560 600 693 600 816 800 975 800
122 400 151 700 176 300 229 800 280 300 346 800 408 400 487 900
171 400 212 400 246 800 321 600 392 500 485 500 571 800 683 100
195 900 242 800 282 100 367 600 448 500 554 900 653 400 780 700
269 300 333 800 387 800 505 400 616 700 763 000 898 400 1 073 400
110 200 136 600 158 700 / / / / /
146 900 182 100 211 600 / / / / /
①, 属性等级50仅指奥氏体等级A1至A5。
②, 单位:牛(N)
螺纹
M8x1 M10x1.25 M10x1 M12x1.5 M12x1.25 M14x1.5 M16x1.5 M18x1.5 M20x2
公称应力截面积 As / mm2
50 奥氏体及双相不锈钢
70
80
100
50 马氏体不锈钢
70
80
110
45 铁素体不锈钢
60
39.2 61.2 64.5 88.1 92.1 125 167 216 258
1030" 30 600 32 250 44 070 46 040 62 280 83 630 108 200 129 000
27 420 42 840 45 150 61 690 64 460 87 190 117 100 151 400 180 600
31 340 48 960 51 600 70 510 73 660 99 640 133 800 173 000 206 400
39 170 61 200 64 500 88 130 92 080 124 600 167 300 216 300 258 000
19 590 30 600 32 250 44 070 46 040 62 280 83 630 108 200 129 000
27 420 42 840 45 150 61 690 64 460 87 190 117 100 151 400 180 600
31 340 48 960 51 600 70 510 73 660 99 640 133 800 173 000 206 400
43 090 67 320 70 950 96 940 101 300 137 100 184 000 237 900 283 800
17 630 27 540 29 030 39 660 41 440 56 050 75 270 97 310 116 100
23 510 36 720 38 700 52 880 55 250 74 730 100 400 129 800 154 800
螺纹
M20x1.5 M22x1.5 M24x2 M27x2 M30x2 M33x2 M36x3 M39x3
公称应力截面积 As / mm2
50 奥氏体及双相不锈钢
70
80
100
50 马氏体不锈钢
70
80
110
45 铁素体不锈钢
60
272 333 384 496 621 761 865 1030
135 800 166 600 192 300 247 900 310 700 380 400 432 500 514 200
190 100 233 200 269 100 347 100 434 900 532 600 605 500 719 900
217 300 266 500 307 600 396 600 497 000 608 700 692 000 822 800
271 600 333 100 384 500 495 800 621 300 760 800 865 000 1 028 400
135 800 166 600 192 300 247 900 310 700 380 400 432 500 514 200
190 100 233 200 269 100 347 100 434 900 532 600 605 500 719 900
217 300 266 500 307 600 396 600 497 000 608 700 692 000 822 800
298 700 366 400 422 900 545 400 683 400 836 900 951 500 1 131 300
122 200 149 900 173 000 / / / / /
163 000 199 900 230 700 / / / / /
①, 属性等级50仅指奥氏体等级A1至A5。
②, 单位:牛(N)
螺纹
M5 M6 M7 M8 M10 M12 M14 M16 M18
公称应力截面积 As / mm2
025 奥氏体及双相不锈钢
035
040
050
025 马氏体不锈钢
035
040
055
022 铁素体不锈钢
030
14.2 20.1 28.9 36.6 58.0 84.3 115 157 192
3 550 5 040 7 220 9 160 14 500 21 070 28 860 39 170 48 120
4 970 7 050 10 110 12 820 20 300 29 500 40 410 54 840 67 370
5 680 8 050 11 550 14 650 23 200 33 710 46 180 62 670 76 990
7 100 10 070 14 430 18 310 29 000 42 140 57 720 78 340 96 240
3 550 5 040 7 220 9 160 14 500 21 070 28 860 39 170 48 120
4 970 7 050 10 110 12 820 20 300 29 500 40 410 54 840 67 370
5 680 8 050 11 550 14 650 23 200 33 710 46 180 62 670 76 990
7 810 11 070 15 880 20 140 31 900 46 350 63 500 86 170 105 900
3 200 4 530 6 500 8 240 13 050 18 960 25 980 35 260 43 310
4 260 6 040 8 660 10 990 17 400 25 280 34 640 47 010 57 750
螺纹
M20 M22 M24 M27 M30 M33 M36 M39
公称应力截面积 As / mm2
025 奥氏体及双相不锈钢
035
040
050
025 马氏体不锈钢
035
040
055
022 铁素体不锈钢
030
245 303 353 459 561 694 817 976
61 200 75 850 88 130 114 900 140 200 173 400 204 200 244 000
85 680 106 200 123 400 160 800 196 300 242 800 285 900 341 600
97 920 121 400 141 100 183 800 224 300 277 500 326 700 390 400
122 400 151 700 176 300 229 800 280 300 346 800 408 400 487 900
61 200 75 850 88 130 114 900 140 200 173 400 204 200 244 000
85 680 106 200 123 400 160 800 196 300 242 800 285 900 341 600
97 920 121 400 141 100 183 800 224 300 277 500 326 700 390 400
134 700 166 900 193 900 252 700 308 400 381 500 449 200 536 700
55 080 68 270 79 320 / / / / /
73 440 91 020 105 800 / / / / /
①, 属性等级025仅指奥氏体等级A1至A5。
②, 单位:牛(N)
螺纹
M8x1 M10x1.25 M10x1 M12x1.5 M12x1.25 M14x1.5 M16x1.5 M18x1.5 M20x2
公称应力截面积 As / mm2
025 奥氏体及双相不锈钢
035
040
050
025 马氏体不锈钢
035
040
055
022 铁素体不锈钢
030
39.2 61.2 64.5 88.1 92.1 125 167 216 258
9 800 15 300 16 130 22 040 23 020 31 140 41 820 54 060 64 500
13 710 21 420 22 580 30 850 32 230 43 600 58 540 75 690 90 300
15 670 24 480 25 800 35 260 36 830 49 820 66 900 86 500 103 200
19 590 30 600 32 250 44 070 46 040 62 280 83 630 108 200 129 000
9 800 15 300 16 130 22 040 23 020 31 140 41 820 54 060 64 500
13 710 21 420 22 580 30 850 32 230 43 600 58 540 75 690 90 300
15 670 24 480 25 800 35 260 36 830 49 820 66 900 86 500 103 200
21 550 33 660 35 480 48 470 50 640 68 510 91 990 119 000 141 900
8 820 13 770 14 520 19 830 20 720 28 030 37 640 48 660 58 050
11 760 18 360 19 350 26 440 27 630 37 370 50 180 64 880 77 400
螺纹
M20x1.5 M22x1.5 M24x2 M27x2 M30x2 M33x2 M36x3 M39x3
公称应力截面积 As / mm2
025 奥氏体及双相不锈钢
035
040
050
025 马氏体不锈钢
035
040
055
022 铁素体不锈钢
030
272 333 384 496 621 761 865 1030
67 880 83 270 96 110 124 000 155 400 190 200 216 300 257 100
95 030 116 600 134 600 173 600 217 500 266 300 302 800 360 000
108 700 133 300 153 800 198 300 248 500 304 400 346 000 411 400
135 800 166 600 192 300 247 900 310 700 380 400 432 500 514 200
67 880 83 270 96 110 124 000 155 400 190 200 216 300 257 100
95 030 116 600 134 600 173 600 217 500 266 300 302 800 360 000
108 700 133 300 153 800 198 300 248 500 304 400 346 000 411 400
149 400 183 200 211 500 272 700 341 700 418 500 475 800 565 700
61 090 74 940 86 500 / / / / /
81 460 99 920 115 400 / / / / /
①, 属性等级025仅指奥氏体等级A1至A5。
②, 单位:牛(N)

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Carbon steels、alloy steels and stainless materials for bolts and nuts

ASTM A 194 - 2000

Carbon steels、alloy steels and stainless materials for bolts and nuts

Self-drilling screws for the building and construction industries Part 1: General requirements and mechanical properties

AS 3566.1 - 2002

Self-drilling screws for the building and construction industries Part 1: General requirements and mechanical properties

SAE J 429 - 2013

SAE J 995 - 2012

SAE J 933 - 2005

Thread Rolling Screws

SAE J 81 - 1997

Thread Rolling Screws

Maximum Drive Torque for Type TRS Tapping Screws

ASME B 18.6.3 (T4.11.2-1) - 2024

Maximum Drive Torque for Type TRS Tapping Screws

Torsional Strength Requirements for Tapping Screws

ASME B 18.6.3 (T4.11.3-1) - 2024

Torsional Strength Requirements for Tapping Screws

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