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GB /T 3098.2 - 2015 Mechanical properties of fasteners-nuts with coarse thread

螺纹
螺距 04级 05级 5级 6级 8级 10级 12级
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M39
0.8 5400 7100 8250 9500 12140 14800 16300
1 7640 10000 11700 13500 17200 20900 23100
1 11000 14500 16800 19400 24700 30100 33200
1.25 13900 18300 21600 24900 31800 38100 42500
1.5 22000 29000 34200 39400 50500 60300 67300
1.75 32000 42200 51400 59000 74200 88500 100300
2 43700 57500 70200 80500 101200 120800 136900
2 59700 78500 95800 109900 138200 164900 186800
2.5 73000 96000 121000 138200 176600 203500 230400
2.5 93100 122500 154400 176400 225400 259700 294000
2.5 115100 151500 190900 218200 278800 321200 363600
3 134100 176500 222400 254200 324800 374200 423600
3 174400 229500 289200 330500 422300 486500 550800
3.5 213200 280500 353400 403900 516100 594700 673200
3.5 263700 347000 437200 499700 638500 735600 832800
4 310500 408500 514700 588200 751600 866000 980400
4 370900 488000 614900 702700 897900 1035000 1171000
①, 保证载荷/N
②, 数据来源:GB/T 3098.2-2015
性能等级
Property Class
材料 热处理 C(%) max Mn(%) min P(%) max S(%) max
04
05
5
6
8 高螺母(2型)
8 标准螺母(1型) D≤M16
8 标准螺母(1型) D>M16
10
12
碳钢 (Carbon steel) 0.58 0.25 0.600 0.150
碳钢 (Carbon steel) ②③ 0.58 0.30 0.048 0.058
碳钢 (Carbon steel) 0.58 / 0.600 0.150
碳钢 (Carbon steel) 0.58 / 0.600 0.150
碳钢 (Carbon steel) 0.58 0.25 0.600 0.150
碳钢 (Carbon steel) 0.58 0.25 0.600 0.150
碳钢 (Carbon steel) ②③ 0.58 0.30 0.048 0.058
碳钢 (Carbon steel) ②③ 0.58 0.30 0.048 0.058
碳钢 (Carbon steel) ②③ 0.58 0.45 0.048 0.058
①, 由制造者选择,可以淬火并回火
②, 淬火并回火
③, 对这些性能等级用的材料,应有足够的淬透性,以确保紧固件基体金属在“淬硬”状态,在回火前,在螺母螺纹截面中,获得约90%的马氏体组织。
④, 05、8【D>M16的标准螺母(1型)】、10和12级粗牙螺母应淬火并回火;
05、6(D>M16)、8【标准螺母(1型)】、10和12级细牙螺母应淬火并回火;
化学成分应按相关标准进行评定。
螺纹
04(min) 04(max) 05(min) 05(max) 5(min) 5(max) 6(min) 6(max) 8(min) 8(max) 10(min) 10(max) 12(min) 12(max)
M5 ≤ D ≤ M16 HV
M16 < D ≤ M39
M5 ≤ D ≤ M16 HB
M16 < D ≤ M39
M5 ≤ D ≤ M16 HRC
M16 < D ≤ M39
188 302 272 353 130 302 150 302 200 302 272 353 295③ 353
188 302 272 353 146 302 170 302 233① 353② 272 353 272 353
179 287 259 336 124 287 143 287 190 287 259 336 280③ 336
179 287 259 336 139 287 162 287 221① 336② 259 336 259 336
/ 30 26 36 / 30 / 30 / 30 26 36 29③ 36
/ 30 26 36 / 30 / 30 / 36② 26 36 26 36
①, 对高螺母(2型)的最低硬度值:180HV(171HB)
②, 对高螺母(2型)的最低硬度值:302HV(287HB;30HRC)
③, 对高螺母(2型)的最低硬度值:272HV(259HB;26HRC)
性能等级
Property class
04 05 5 6 8 10 12
标准(1型)
高螺母(2型)
薄螺母(0型)
搭配用的螺栓 螺钉 螺柱最高性能等级
- - M5≤D≤M39 / M8x1≤D≤M39x3 M5≤D≤M39 / M8x1≤D≤M39x3 M5≤D≤M39 / M8x1≤D≤M39x3 M5≤D≤M39 / M8x1≤D≤M16x1.5 M5≤D≤M16
- - - - M16≤D≤M39 / M8x1≤D≤M16x1.5 M5≤D≤M39 / M8x1≤D≤M39x3 M5≤D≤M39 / M8x1≤D≤M16x1.5
M5≤D≤M39 / M8x1≤D≤M39x3 M5≤D≤M39 / M8x1≤D≤M39x3 - - - - -
- - 5.8 6.8 8.8 10.9 12.9 / 12.9
Alternative history GB /T 3098.2 - 2015

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