本帖最后由 ~幻~ 于 2016-9-23 08:59 编辑
L- N" N4 j- z$ x3 z, F) s- A1 K0 F2 Z3 t7 T
螺栓的等级以及锁紧力矩 一、螺栓的性能等级 钢结构连接用螺栓性能等级分3.6、4.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9等10余个等级,其中8.8级及以上螺栓材质为低碳合金钢或中碳钢并经热处理(淬火、回火),通称为高强度螺栓,其余通称为普通螺栓。 螺栓性能等级标号有两部分数字组成,分别表示螺栓材料的公称抗拉强度值和屈强比值。 例如,性能等级4.6级的螺栓,其含义是: 1、螺栓材质公称抗拉强度达400MPa级; 2、螺栓材质的屈强比值为0.6; 3、螺栓材质的公称屈服强度达400×0.6=240MPa级 。 性能等级10.9级高强度螺栓,含义是: 1、螺栓材质公称抗拉强度达1000MPa级; 2、螺栓材质的屈强比值为0.9; 3、螺栓材质的公称屈服强度达1000×0.9=900MPa级 。 螺栓性能等级的含义是国际通用的标准,相同性能等级的螺栓,不管其材料和产地的区别,其性能是相同的,设计上只选用性能等级即可 拧紧扭矩M=KFd 式中:M-拧紧扭矩,Nm;K-拧紧扭矩系数;F-拧紧力kN;d-螺纹直径,mm。 内六角 | 外六角 | 螺栓直径 | 螺栓强度等级 | 螺 栓 | 螺 栓 | 3.6 | 5.6 | 6.9 | 8.8 | 10.9 | 12.9 | S(mm) | S(mm) | M(mm) | Fv(N) | Ma(Nm) | Fv(N) | Ma(Nm) | Fv(N) | Ma(Nm) | Fv(N) | Ma(Nm) | Fv(N) | Ma(Nm) | Fv(N) | Ma(Nm) | 1.5 | 4 | M2 | 255 | 0.1 | 345 | 0.15 | 710 | 0.3 | 835 | 0.35 | 1,170 | 0.5 | 1,415 | 0.6 | 2 | 5 | M2.5 | 485 | 0.26 | 655 | 0.35 | 1,310 | 0.71 | 1,550 | 0.83 | 2,180 | 1.18 | 2,620 | 1.4 | 2.25 | 5.5 | M3 | 630 | 0.37 | 1,050 | 0.62 | 1,700 | 0.99 | 2,250 | 1.3 | 3,150 | 1.9 | 3,800 | 2.2 | | 6 | M3.5 | 850 | 0.57 | 1,400 | 0.95 | 2,250 | 1.5 | 3,000 | 2 | 4,250 | 2.9 | 5,100 | 3.4 | 3 | 7 | M4 | 1,100 | 0.85 | 1,850 | 1.4 | 2,900 | 2.3 | 3,900 | 3 | 5,750 | 4.4 | 6,700 | 5.1 | 4 | 8、9 | M5 | 1,800 | 1.7 | 3,000 | 2.8 | 4,800 | 4.5 | 6,400 | 5.9 | 9,400 | 8.7 | 11,000 | 10 | 5 | 10 | M6 | 2,550 | 2.9 | 4,200 | 4.8 | 6,750 | 7.7 | 9,000 | 10 | 13,200 | 15 | 15,500 | 18 | 6 | 13、14 | M8 | 4,650 | 7 | 7,750 | 12 | 12,400 | 19 | 16,500 | 25 | 24,300 | 36 | 28,400 | 43 | 8 | 15、17 | M10 | 7,400 | 14 | 12,300 | 23 | 19,700 | 37 | 26,300 | 49 | 38,700 | 72 | 45,200 | 84 | 10 | 19、21 | M12 | 10,800 | 24 | 18,000 | 40 | 28,800 | 65 | 38,400 | 85 | 56,500 | 125 | 66,000 | 145 | 12 | 22、23 | M14 | 14,800 | 39 | 24,700 | 64 | 39,500 | 105 | 52,500 | 135 | 77,500 | 200 | 90,500 | 235 | 14 | 24、26 | M16 | 20,400 | 59 | 34,000 | 98 | 54,500 | 155 | 72,500 | 210 | 107,000 | 310 | 125,000 | 365 | | 27 | M18 | 24,800 | 81 | 41,300 | 135 | 66,000 | 215 | 91,000 | 300 | 129,000 | 430 | 152,000 | 500 | 17 | 30 | M20 | 31,900 | 115 | 53,000 | 190 | 85,000 | 305 | 117,000 | 425 | 166,000 | 610 | 195,000 | 710 | | 32 | M22 | 39,900 | 155 | 66,500 | 260 | 106,000 | 415 | 146,000 | 580 | 208,000 | 820 | 244,000 | 960 | 19 | 36 | M24 | 45,900 | 200 | 76,500 | 330 | 122,000 | 530 | 168,000 | 730 | 240,000 | 1,050 | 281,000 | 1,220 | | 41 | M27 | 80,500 | 295 | 100,000 | 490 | 161,000 | 780 | 222,000 | 1,100 | 316,000 | 1,550 | 369,000 | 1,800 | 22 | 46 | M30 | 73,500 | 395 | 122,000 | 660 | 196,000 | 1,050 | 269,000 | 1,450 | 384,000 | 2,100 | 449,000 | 2,450 | | 50 | M33 | 91,500 | 540 | 153,000 | 900 | 244,000 | 1,450 | 326,000 | 1,900 | 458,000 | 2,700 | 550,000 | 3,250 | 27 | 55 | M36 | 107,000 | 690 | 179,000 | 1,150 | 287,000 | 1,850 | 382,000 | 2,450 | 537,000 | 3,450 | 645,000 | 4,150 | | 60 | M39 | 129,000 | 900 | 215,000 | 1,500 | 345,000 | 2,400 | 460,000 | 3,200 | 646,000 | 4,500 | 775,000 | 5,400 | 32 | 65 | M42 | 148,000 | 1,100 | 247,000 | 1,850 | 395,000 | 2,950 | 526,000 | 3,950 | 740,000 | 5,550 | 888,000 | 6,650 | | 70 | M45 | 173,000 | 1,400 | 289,000 | 2,300 | 462,000 | 3,700 | 616,000 | 4,950 | 867,000 | 6,950 | 1,050,000 | 8,350 | 36 | 75 | M48 | 195,000 | 1,700 | 325,000 | 2,800 | 520,000 | 4,450 | 693,000 | 5,950 | 974,000 | 8,400 | 1,150,000, | 10,100 | | 80 | M52 | 234,000 | 2,150 | 390,000 | 3,600 | 624,000 | 5,750 | 832,000 | 7,650 | 1,169,000 | 10,800 | 1,403,000 | 12,900 | 41 | 85 | M56 | 270,000 | 2,700 | 450,000 | 4,500 | 719,000 | 7,150 | 959,000 | 9,550 | 1,349,000 | 13,400 | 1,618,000 | 16,100 | | 90 | M60 | 315,000 | 3,350 | 525,000 | 5,550 | 841,000 | 8,900 | 1,121,000 | 11,900 | 1,576,000 | 16,700 | 1,892,000 | 20,000 | 46 | 95 | M64 | 357,000 | 4,000 | 595,000 | 6,700 | 951,000 | 10,700 | 1,268,000 | 14,300 | 1,784,000 | 21,100 | 2,140,000 | 24,100 | S-内六角或外六方两平行边距离 | Fv-螺栓预紧力 | Ma-螺栓扭矩 | | |
二、螺纹联接的拧紧力矩计算 Mt=K×P0×d×10-3 N.m
5 I5 S' X8 A' F" [/ `$ ?K:拧紧力系数 d:螺纹公称直径 $ f; \; a! @( z1 O8 W
P0:预紧力 4 m' ]- F: v) g" G2 F9 r
P0=σ0×As As也可由下面表查出; v0 G! U1 Y* V7 s& z( o
As=π×ds2/4 ds:螺纹部分危险剖面的计算直径
) L. U8 V% k& W6 b. | C! Sds=(d2+d3)/2 d3= d1-H/6 H:螺纹牙的公称工作高度, m1 o) H" M* @" t2 e
σ0 =(0.5~0.7)σs σs――――螺栓材料的屈服极限N/mm2 (与强度等级相关,材质决定)
3 z. B8 l0 m# t- w5 LK值查表:(K值计算公式略)6 ^8 ?5 r# X m+ ^( h/ z
摩擦表面状况 | K值 | 有润滑 | 无润滑 | 精加工表面 | 0.10 | 0.12 | 一般加工表面 | 0.13~0.15 | 0.18~0.21 | 表面氧化 | 0.20 | 0.24 | 镀 锌 | 0.18 | 0.22 | 干燥的粗加工表面 | | 0.26~0.3 |
σs查表:; E, a# D4 K3 L' I
螺纹性能等级$ W- c! O( H1 y! g# D
| 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | σs 或σ0.2N/mm2
2 Z9 N1 h# w6 W; G | 180 | 240 | 320 | 300 | 400 | 480 | 640 | 720 | 900 | 1080 |
7 M* D8 V# a' Q. C0 j" |As查表:
) V9 Q. t% ]2 L1 v4 x9 f% N9 |+ U; _
% f% V- ]. g3 |6 D6 o( z! \ 螺纹公称直径d/mm; i4 l' ^/ ~! U9 G; \8 D, _
| 3 | 3.5 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 公称应力截面积As/mm2
) l2 N# A6 A9 M8 ?* [; z | 5.03 | 6.78 | 8.78 | 14.2 | 20.1 | 28.9 | 36.6 | 58 | 84.3 | 115 | 157 | 192 | 245 | 303 | 353 | 459 | 561 | 694 | 817 |
/ L& _: O! O: c- Y! t$ M. {% {0 t5 ~
- u* ]( Z `6 K7 |* I$ V2 P
通过计算得到螺栓联接拧紧力矩如下表所示:
/ {! A w& M1 {( N( w4 l0 C' O% T) D2 V7 O7 ]9 @
# S# D; ]' ?5 t) _3 S
v% v0 U/ B0 t( G6 `8 D表面被氧化(无润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级
% e" q' z9 H% r | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm! s2 r( G2 j' e5 J2 `5 K3 n& I
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.33 | 0.46 | 0.43 | 0.61 | 0.58 | 0.81 | 0.54 | 0.76 | 0.72 | 1.01 | 0.87 | 1.22 | 1.16 | 1.62 | 1.30 | 1.83 | 1.63 | 2.28 | 1.96 | 2.74 | 3.5 | 0.51 | 0.72 | 0.68 | 0.96 | 0.91 | 1.28 | 0.85 | 1.20 | 1.14 | 1.59 | 1.37 | 1.91 | 1.82 | 2.55 | 2.05 | 2.87 | 2.56 | 3.59 | 3.08 | 4.31 | 4 | 0.76 | 1.06 | 1.01 | 1.42 | 1.35 | 1.89 | 1.26 | 1.77 | 1.69 | 2.36 | 2.02 | 2.83 | 2.70 | 3.78 | 3.03 | 4.25 | 3.79 | 5.31 | 4.55 | 6.37 | 5 | 1.53 | 2.15 | 2.04 | 2.86 | 2.73 | 3.82 | 2.56 | 3.58 | 3.41 | 4.77 | 4.09 | 5.73 | 5.45 | 7.63 | 6.13 | 8.59 | 7.67 | 10.74 | 9.20 | 12.88 | 6 | 2.60 | 3.65 | 3.47 | 4.86 | 4.63 | 6.48 | 4.34 | 6.08 | 5.79 | 8.10 | 6.95 | 9.73 | 9.26 | 12.97 | 10.42 | 14.59 | 13.02 | 18.23 | 15.63 | 21.88 | 7 | 4.37 | 6.12 | 5.83 | 8.16 | 7.77 | 10.88 | 7.28 | 10.20 | 9.71 | 13.59 | 11.65 | 16.31 | 15.54 | 21.75 | 17.48 | 24.47 | 21.85 | 30.59 | 26.22 | 36.71 | 8 | 6.32 | 8.85 | 8.43 | 11.81 | 11.24 | 15.74 | 10.54 | 14.76 | 14.05 | 19.68 | 16.87 | 23.61 | 22.49 | 31.48 | 25.30 | 35.42 | 31.62 | 44.27 | 37.95 | 53.13 | 10 | 12.53 | 17.54 | 16.70 | 23.39 | 22.27 | 31.18 | 20.88 | 29.23 | 27.84 | 38.98 | 33.41 | 46.77 | 44.54 | 62.36 | 50.11 | 70.16 | 62.64 | 87.70 | 75.17 | 105.24 | 12 | 21.85 | 30.59 | 29.13 | 40.79 | 38.85 | 54.38 | 36.42 | 50.98 | 48.56 | 67.98 | 58.27 | 81.58 | 77.69 | 108.77 | 87.40 | 122.36 | 109.25 | 152.95 | 131.10 | 183.54 | 14 | 34.78 | 48.69 | 46.37 | 64.92 | 61.82 | 86.55 | 57.96 | 81.14 | 77.28 | 108.19 | 92.74 | 129.83 | 123.65 | 173.11 | 139.10 | 194.75 | 173.88 | 243.43 | 208.66 | 292.12 | 16 | 54.26 | 75.96 | 72.35 | 101.28 | 96.46 | 135.05 | 90.43 | 126.60 | 120.58 | 168.81 | 144.69 | 202.57 | 192.92 | 270.09 | 217.04 | 303.85 | 271.30 | 379.81 | 325.56 | 455.78 | 18 | 74.65 | 104.51 | 99.53 | 139.35 | 132.71 | 185.79 | 124.42 | 174.18 | 165.89 | 232.24 | 199.07 | 278.69 | 265.42 | 371.59 | 298.60 | 418.04 | 373.25 | 522.55 | 447.90 | 627.06 | 20 | 105.84 | 148.18 | 141.12 | 197.57 | 188.16 | 263.42 | 176.40 | 246.96 | 235.20 | 329.28 | 282.24 | 395.14 | 376.32 | 526.85 | 423.36 | 592.70 | 529.20 | 740.88 | 635.04 | 889.06 | 22 | 143.99 | 201.58 | 191.98 | 268.77 | 255.97 | 358.36 | 239.98 | 335.97 | 319.97 | 447.96 | 383.96 | 537.55 | 511.95 | 716.73 | 575.94 | 806.32 | 719.93 | 1007.90 | 863.91 | 1209.48 | 24 | 183.00 | 256.19 | 243.99 | 341.59 | 325.32 | 455.45 | 304.99 | 426.99 | 406.66 | 569.32 | 487.99 | 683.18 | 650.65 | 910.91 | 731.98 | 1024.77 | 914.98 | 1280.97 | 1097.97 | 1537.16 | 27 | 267.69 | 374.76 | 356.92 | 499.69 | 475.89 | 666.25 | 446.15 | 624.61 | 594.86 | 832.81 | 713.84 | 999.37 | 951.78 | 1332.50 | 1070.76 | 1499.06 | 1338.44 | 1873.82 | 1606.13 | 2248.59 | 30 | 363.53 | 508.94 | 484.70 | 678.59 | 646.27 | 904.78 | 605.88 | 848.23 | 807.84 | 1130.98 | 969.41 | 1357.17 | 1292.54 | 1809.56 | 1454.11 | 2035.76 | 1817.64 | 2544.70 | 2181.17 | 3053.64 | 33 | 494.68 | 692.56 | 659.58 | 923.41 | 879.44 | 1231.21 | 824.47 | 1154.26 | 1099.30 | 1539.01 | 1319.16 | 1846.82 | 1758.87 | 2462.42 | 1978.73 | 2770.23 | 2473.42 | 3462.78 | 2968.10 | 4155.34 | 36 | 635.30 | 889.42 | 847.07 | 1185.89 | 1129.42 | 1581.19 | 1058.83 | 1482.36 | 1411.78 | 1976.49 | 1694.13 | 2371.78 | 2258.84 | 3162.38 | 2541.20 | 3557.68 | 3176.50 | 4447.09 | 3811.80 | 5336.51 |
* b; u6 F7 W4 O8 ~ X. N- ] s
+ Z, W9 }3 v9 a9 B2 b4 W- A8 C9 ^" {
; P$ C. |1 e) ~9 r! U7 d! R- V9 B: F/ F8 u, L
表面被氧化(有润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级
! K3 @# w3 ?: J' R3 T8 V$ p | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm
. \3 S: Y- f% q2 j1 G/ z | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.27 | 0.38 | 0.36 | 0.51 | 0.48 | 0.68 | 0.45 | 0.63 | 0.60 | 0.85 | 0.72 | 1.01 | 0.97 | 1.35 | 1.09 | 1.52 | 1.36 | 1.90 | 1.63 | 2.28 | 3.5 | 0.43 | 0.60 | 0.57 | 0.80 | 0.76 | 1.06 | 0.71 | 1.00 | 0.95 | 1.33 | 1.14 | 1.59 | 1.52 | 2.13 | 1.71 | 2.39 | 2.14 | 2.99 | 2.56 | 3.59 | 4 | 0.63 | 0.89 | 0.84 | 1.18 | 1.12 | 1.57 | 1.05 | 1.48 | 1.40 | 1.97 | 1.69 | 2.36 | 2.25 | 3.15 | 2.53 | 3.54 | 3.16 | 4.43 | 3.79 | 5.31 | 5 | 1.28 | 1.79 | 1.70 | 2.39 | 2.27 | 3.18 | 2.13 | 2.98 | 2.84 | 3.98 | 3.41 | 4.77 | 4.54 | 6.36 | 5.11 | 7.16 | 6.39 | 8.95 | 7.67 | 10.74 | 6 | 2.17 | 3.04 | 2.89 | 4.05 | 3.86 | 5.40 | 3.62 | 5.07 | 4.82 | 6.75 | 5.79 | 8.10 | 7.72 | 10.81 | 8.68 | 12.16 | 10.85 | 15.20 | 13.02 | 18.23 | 7 | 3.64 | 5.10 | 4.86 | 6.80 | 6.47 | 9.06 | 6.07 | 8.50 | 8.09 | 11.33 | 9.71 | 13.59 | 12.95 | 18.13 | 14.57 | 20.39 | 18.21 | 25.49 | 21.85 | 30.59 | 8 | 5.27 | 7.38 | 7.03 | 9.84 | 9.37 | 13.12 | 8.78 | 12.30 | 11.71 | 16.40 | 14.05 | 19.68 | 18.74 | 26.23 | 21.08 | 29.51 | 26.35 | 36.89 | 31.62 | 44.27 | 10 | 10.44 | 14.62 | 13.92 | 19.49 | 18.56 | 25.98 | 17.40 | 24.36 | 23.20 | 32.48 | 27.84 | 38.98 | 37.12 | 51.97 | 41.76 | 58.46 | 52.20 | 73.08 | 62.64 | 87.70 | 12 | 18.21 | 25.49 | 24.28 | 33.99 | 32.37 | 45.32 | 30.35 | 42.49 | 40.46 | 56.65 | 48.56 | 67.98 | 64.74 | 90.64 | 72.84 | 101.97 | 91.04 | 127.46 | 109.25 | 152.95 | 14 | 28.98 | 40.57 | 38.64 | 54.10 | 51.52 | 72.13 | 48.30 | 67.62 | 64.40 | 90.16 | 77.28 | 108.19 | 103.04 | 144.26 | 115.92 | 162.29 | 144.90 | 202.86 | 173.88 | 243.43 | 16 | 45.22 | 63.30 | 60.29 | 84.40 | 80.38 | 112.54 | 75.36 | 105.50 | 100.48 | 140.67 | 120.58 | 168.81 | 160.77 | 225.08 | 180.86 | 253.21 | 226.08 | 316.51 | 271.30 | 379.81 | 18 | 62.21 | 87.09 | 82.94 | 116.12 | 110.59 | 154.83 | 103.68 | 145.15 | 138.24 | 193.54 | 165.89 | 232.24 | 221.18 | 309.66 | 248.83 | 348.36 | 311.04 | 435.46 | 373.25 | 522.55 | 20 | 88.20 | 123.48 | 117.60 | 164.64 | 156.80 | 219.52 | 147.00 | 205.80 | 196.00 | 274.40 | 235.20 | 329.28 | 313.60 | 439.04 | 352.80 | 493.92 | 441.00 | 617.40 | 529.20 | 740.88 | 22 | 119.99 | 167.98 | 159.98 | 223.98 | 213.31 | 298.64 | 199.98 | 279.97 | 266.64 | 373.30 | 319.97 | 447.96 | 426.62 | 597.27 | 479.95 | 671.93 | 599.94 | 839.92 | 719.93 | 1007.90 | 24 | 152.50 | 213.49 | 203.33 | 284.66 | 271.10 | 379.55 | 254.16 | 355.82 | 338.88 | 474.43 | 406.66 | 569.32 | 542.21 | 759.09 | 609.98 | 853.98 | 762.48 | 1067.47 | 914.98 | 1280.97 | 27 | 223.07 | 312.30 | 297.43 | 416.40 | 396.58 | 555.21 | 371.79 | 520.51 | 495.72 | 694.01 | 594.86 | 832.81 | 793.15 | 1110.41 | 892.30 | 1249.21 | 1115.37 | 1561.52 | 1338.44 | 1873.82 | 30 | 302.94 | 424.12 | 403.92 | 565.49 | 538.56 | 753.98 | 504.90 | 706.86 | 673.20 | 942.48 | 807.84 | 1130.98 | 1077.12 | 1507.97 | 1211.76 | 1696.46 | 1514.70 | 2120.58 | 1817.64 | 2544.70 | 33 | 412.24 | 577.13 | 549.65 | 769.51 | 732.86 | 1026.01 | 687.06 | 961.88 | 916.08 | 1282.51 | 1099.30 | 1539.01 | 1465.73 | 2052.02 | 1648.94 | 2308.52 | 2061.18 | 2885.65 | 2473.42 | 3462.78 | 36 | 529.42 | 741.18 | 705.89 | 988.24 | 941.18 | 1317.66 | 882.36 | 1235.30 | 1176.48 | 1647.07 | 1411.78 | 1976.49 | 1882.37 | 2635.32 | 2117.66 | 2964.73 | 2647.08 | 3705.91 | 3176.50 | 4447.09 | ' X% r, b& M: q( g; q. f! |( I
镀锌(无润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级/ p3 a k0 K9 Y; c( \
| 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm
! ^ ~& M5 M; v6 M# z2 K | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.30 | 0.42 | 0.40 | 0.56 | 0.53 | 0.74 | 0.50 | 0.70 | 0.66 | 0.93 | 0.80 | 1.12 | 1.06 | 1.49 | 1.20 | 1.67 | 1.49 | 2.09 | 1.79 | 2.51 | 3.5 | 0.47 | 0.66 | 0.63 | 0.88 | 0.84 | 1.17 | 0.78 | 1.10 | 1.04 | 1.46 | 1.25 | 1.75 | 1.67 | 2.34 | 1.88 | 2.63 | 2.35 | 3.29 | 2.82 | 3.95 | 4 | 0.70 | 0.97 | 0.93 | 1.30 | 1.24 | 1.73 | 1.16 | 1.62 | 1.55 | 2.16 | 1.85 | 2.60 | 2.47 | 3.46 | 2.78 | 3.89 | 3.48 | 4.87 | 4.17 | 5.84 | 5 | 1.41 | 1.97 | 1.87 | 2.62 | 2.50 | 3.50 | 2.34 | 3.28 | 3.12 | 4.37 | 3.75 | 5.25 | 5.00 | 7.00 | 5.62 | 7.87 | 7.03 | 9.84 | 8.43 | 11.81 | 6 | 2.39 | 3.34 | 3.18 | 4.46 | 4.25 | 5.94 | 3.98 | 5.57 | 5.31 | 7.43 | 6.37 | 8.91 | 8.49 | 11.89 | 9.55 | 13.37 | 11.94 | 16.72 | 14.33 | 20.06 | 7 | 4.01 | 5.61 | 5.34 | 7.48 | 7.12 | 9.97 | 6.68 | 9.35 | 8.90 | 12.46 | 10.68 | 14.95 | 14.24 | 19.94 | 16.02 | 22.43 | 20.03 | 28.04 | 24.03 | 33.65 | 8 | 5.80 | 8.12 | 7.73 | 10.82 | 10.31 | 14.43 | 9.66 | 13.53 | 12.88 | 18.04 | 15.46 | 21.64 | 20.61 | 28.86 | 23.19 | 32.47 | 28.99 | 40.58 | 34.78 | 48.70 | 10 | 11.48 | 16.08 | 15.31 | 21.44 | 20.42 | 28.58 | 19.14 | 26.80 | 25.52 | 35.73 | 30.62 | 42.87 | 40.83 | 57.16 | 45.94 | 64.31 | 57.42 | 80.39 | 68.90 | 96.47 | 12 | 20.03 | 28.04 | 26.71 | 37.39 | 35.61 | 49.85 | 33.38 | 46.74 | 44.51 | 62.31 | 53.41 | 74.78 | 71.22 | 99.70 | 80.12 | 112.17 | 100.15 | 140.21 | 120.18 | 168.25 | 14 | 31.88 | 44.63 | 42.50 | 59.51 | 56.67 | 79.34 | 53.13 | 74.38 | 70.84 | 99.18 | 85.01 | 119.01 | 113.34 | 158.68 | 127.51 | 178.52 | 159.39 | 223.15 | 191.27 | 267.78 | 16 | 49.74 | 69.63 | 66.32 | 92.84 | 88.42 | 123.79 | 82.90 | 116.05 | 110.53 | 154.74 | 132.63 | 185.69 | 176.84 | 247.58 | 198.95 | 278.53 | 248.69 | 348.16 | 298.43 | 417.80 | 18 | 68.43 | 95.80 | 91.24 | 127.73 | 121.65 | 170.31 | 114.05 | 159.67 | 152.06 | 212.89 | 182.48 | 255.47 | 243.30 | 340.62 | 273.72 | 383.20 | 342.14 | 479.00 | 410.57 | 574.80 | 20 | 97.02 | 135.83 | 129.36 | 181.10 | 172.48 | 241.47 | 161.70 | 226.38 | 215.60 | 301.84 | 258.72 | 362.21 | 344.96 | 482.94 | 388.08 | 543.31 | 485.10 | 679.14 | 582.12 | 814.97 | 22 | 131.99 | 184.78 | 175.98 | 246.38 | 234.64 | 328.50 | 219.98 | 307.97 | 293.30 | 410.63 | 351.96 | 492.75 | 469.29 | 657.00 | 527.95 | 739.13 | 659.93 | 923.91 | 791.92 | 1108.69 | 24 | 167.75 | 234.84 | 223.66 | 313.13 | 298.21 | 417.50 | 279.58 | 391.41 | 372.77 | 521.88 | 447.32 | 626.25 | 596.43 | 835.00 | 670.98 | 939.38 | 838.73 | 1174.22 | 1006.47 | 1409.06 | 27 | 245.38 | 343.53 | 327.18 | 458.05 | 436.23 | 610.73 | 408.97 | 572.56 | 545.29 | 763.41 | 654.35 | 916.09 | 872.47 | 1221.45 | 981.53 | 1374.14 | 1226.91 | 1717.67 | 1472.29 | 2061.20 | 30 | 333.23 | 466.53 | 444.31 | 622.04 | 592.42 | 829.38 | 555.39 | 777.55 | 740.52 | 1036.73 | 888.62 | 1244.07 | 1184.83 | 1658.76 | 1332.94 | 1866.11 | 1666.17 | 2332.64 | 1999.40 | 2799.17 | 33 | 453.46 | 634.84 | 604.61 | 846.46 | 806.15 | 1128.61 | 755.77 | 1058.07 | 1007.69 | 1410.76 | 1209.23 | 1692.92 | 1612.30 | 2257.22 | 1813.84 | 2539.37 | 2267.30 | 3174.22 | 2720.76 | 3809.06 | 36 | 582.36 | 815.30 | 776.48 | 1087.07 | 1035.30 | 1449.42 | 970.60 | 1358.83 | 1294.13 | 1811.78 | 1552.95 | 2174.14 | 2070.60 | 2898.85 | 2329.43 | 3261.20 | 2911.79 | 4076.50 | 3494.15 | 4891.80 |
& ^+ E- G+ i3 `& C# k 镀锌(有润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级
% z6 \3 \: _6 n. K6 x' x. s | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm' c( F4 ]# M. a2 ~
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.24 | 0.34 | 0.33 | 0.46 | 0.43 | 0.61 | 0.41 | 0.57 | 0.54 | 0.76 | 0.65 | 0.91 | 0.87 | 1.22 | 0.98 | 1.37 | 1.22 | 1.71 | 1.47 | 2.05 | 3.5 | 0.38 | 0.54 | 0.51 | 0.72 | 0.68 | 0.96 | 0.64 | 0.90 | 0.85 | 1.20 | 1.03 | 1.44 | 1.37 | 1.91 | 1.54 | 2.15 | 1.92 | 2.69 | 2.31 | 3.23 | 4 | 0.57 | 0.80 | 0.76 | 1.06 | 1.01 | 1.42 | 0.95 | 1.33 | 1.26 | 1.77 | 1.52 | 2.12 | 2.02 | 2.83 | 2.28 | 3.19 | 2.84 | 3.98 | 3.41 | 4.78 | 5 | 1.15 | 1.61 | 1.53 | 2.15 | 2.04 | 2.86 | 1.92 | 2.68 | 2.56 | 3.58 | 3.07 | 4.29 | 4.09 | 5.73 | 4.60 | 6.44 | 5.75 | 8.05 | 6.90 | 9.66 | 6 | 1.95 | 2.74 | 2.60 | 3.65 | 3.47 | 4.86 | 3.26 | 4.56 | 4.34 | 6.08 | 5.21 | 7.29 | 6.95 | 9.73 | 7.81 | 10.94 | 9.77 | 13.68 | 11.72 | 16.41 | 7 | 3.28 | 4.59 | 4.37 | 6.12 | 5.83 | 8.16 | 5.46 | 7.65 | 7.28 | 10.20 | 8.74 | 12.24 | 11.65 | 16.31 | 13.11 | 18.35 | 16.39 | 22.94 | 19.66 | 27.53 | 8 | 4.74 | 6.64 | 6.32 | 8.85 | 8.43 | 11.81 | 7.91 | 11.07 | 10.54 | 14.76 | 12.65 | 17.71 | 16.87 | 23.61 | 18.97 | 26.56 | 23.72 | 33.20 | 28.46 | 39.84 | 10 | 9.40 | 13.15 | 12.53 | 17.54 | 16.70 | 23.39 | 15.66 | 21.92 | 20.88 | 29.23 | 25.06 | 35.08 | 33.41 | 46.77 | 37.58 | 52.62 | 46.98 | 65.77 | 56.38 | 78.93 | 12 | 16.39 | 22.94 | 21.85 | 30.59 | 29.13 | 40.79 | 27.31 | 38.24 | 36.42 | 50.98 | 43.70 | 61.18 | 58.27 | 81.58 | 65.55 | 91.77 | 81.94 | 114.72 | 98.33 | 137.66 | 14 | 26.08 | 36.51 | 34.78 | 48.69 | 46.37 | 64.92 | 43.47 | 60.86 | 57.96 | 81.14 | 69.55 | 97.37 | 92.74 | 129.83 | 104.33 | 146.06 | 130.41 | 182.57 | 156.49 | 219.09 | 16 | 40.69 | 56.97 | 54.26 | 75.96 | 72.35 | 101.28 | 67.82 | 94.95 | 90.43 | 126.60 | 108.52 | 151.93 | 144.69 | 202.57 | 162.78 | 227.89 | 203.47 | 284.86 | 244.17 | 341.83 | 18 | 55.99 | 78.38 | 74.65 | 104.51 | 99.53 | 139.35 | 93.31 | 130.64 | 124.42 | 174.18 | 149.30 | 209.02 | 199.07 | 278.69 | 223.95 | 313.53 | 279.94 | 391.91 | 335.92 | 470.29 | 20 | 79.38 | 111.13 | 105.84 | 148.18 | 141.12 | 197.57 | 132.30 | 185.22 | 176.40 | 246.96 | 211.68 | 296.35 | 282.24 | 395.14 | 317.52 | 444.53 | 396.90 | 555.66 | 476.28 | 666.79 | 22 | 107.99 | 151.18 | 143.99 | 201.58 | 191.98 | 268.77 | 179.98 | 251.97 | 239.98 | 335.97 | 287.97 | 403.16 | 383.96 | 537.55 | 431.96 | 604.74 | 539.95 | 755.92 | 647.94 | 907.11 | 24 | 137.25 | 192.14 | 183.00 | 256.19 | 243.99 | 341.59 | 228.74 | 320.24 | 304.99 | 426.99 | 365.99 | 512.39 | 487.99 | 683.18 | 548.99 | 768.58 | 686.23 | 960.72 | 823.48 | 1152.87 | 27 | 200.77 | 281.07 | 267.69 | 374.76 | 356.92 | 499.69 | 334.61 | 468.46 | 446.15 | 624.61 | 535.38 | 749.53 | 713.84 | 999.37 | 803.07 | 1124.29 | 1003.83 | 1405.37 | 1204.60 | 1686.44 | 30 | 272.65 | 381.70 | 363.53 | 508.94 | 484.70 | 678.59 | 454.41 | 636.17 | 605.88 | 848.23 | 727.06 | 1017.88 | 969.41 | 1357.17 | 1090.58 | 1526.82 | 1363.23 | 1908.52 | 1635.88 | 2290.23 | 33 | 371.01 | 519.42 | 494.68 | 692.56 | 659.58 | 923.41 | 618.35 | 865.70 | 824.47 | 1154.26 | 989.37 | 1385.11 | 1319.16 | 1846.82 | 1484.05 | 2077.67 | 1855.06 | 2597.09 | 2226.07 | 3116.50 | 36 | 476.47 | 667.06 | 635.30 | 889.42 | 847.07 | 1185.89 | 794.12 | 1111.77 | 1058.83 | 1482.36 | 1270.60 | 1778.84 | 1694.13 | 2371.78 | 1905.90 | 2668.26 | 2382.37 | 3335.32 | 2858.85 | 4002.38 |
9 ^$ B+ H7 P! H7 f: g3 F. q 干燥的粗加工表面的螺纹联接的拧紧力矩值(单位:N.m) 性能等级! Y, M7 B4 K. n
| 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm3 L( R w: g# t, Y/ X! M/ _
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.35 | 0.57 | 0.47 | 0.76 | 0.63 | 1.01 | 0.59 | 0.95 | 0.78 | 1.27 | 0.94 | 1.52 | 1.26 | 2.03 | 1.41 | 2.28 | 1.77 | 2.85 | 2.12 | 3.42 | 3.5 | 0.56 | 0.90 | 0.74 | 1.20 | 0.99 | 1.59 | 0.93 | 1.49 | 1.23 | 1.99 | 1.48 | 2.39 | 1.97 | 3.19 | 2.22 | 3.59 | 2.78 | 4.48 | 3.33 | 5.38 | 4 | 0.82 | 1.33 | 1.10 | 1.77 | 1.46 | 2.36 | 1.37 | 2.21 | 1.83 | 2.95 | 2.19 | 3.54 | 2.92 | 4.72 | 3.29 | 5.31 | 4.11 | 6.64 | 4.93 | 7.97 | 5 | 1.66 | 2.68 | 2.22 | 3.58 | 2.95 | 4.77 | 2.77 | 4.47 | 3.69 | 5.96 | 4.43 | 7.16 | 5.91 | 9.54 | 6.65 | 10.74 | 8.31 | 13.42 | 9.97 | 16.10 | 6 | 2.82 | 4.56 | 3.76 | 6.08 | 5.02 | 8.10 | 4.70 | 7.60 | 6.27 | 10.13 | 7.53 | 12.16 | 10.03 | 16.21 | 11.29 | 18.23 | 14.11 | 22.79 | 16.93 | 27.35 | 7 | 4.73 | 7.65 | 6.31 | 10.20 | 8.42 | 13.59 | 7.89 | 12.74 | 10.52 | 16.99 | 12.62 | 20.39 | 16.83 | 27.19 | 18.94 | 30.59 | 23.67 | 38.23 | 28.40 | 45.88 | 8 | 6.85 | 11.07 | 9.14 | 14.76 | 12.18 | 19.68 | 11.42 | 18.45 | 15.23 | 24.60 | 18.27 | 29.51 | 24.36 | 39.35 | 27.41 | 44.27 | 34.26 | 55.34 | 41.11 | 66.41 | 10 | 13.57 | 21.92 | 18.10 | 29.23 | 24.13 | 38.98 | 22.62 | 36.54 | 30.16 | 48.72 | 36.19 | 58.46 | 48.26 | 77.95 | 54.29 | 87.70 | 67.86 | 109.62 | 81.43 | 131.54 | 12 | 23.67 | 38.24 | 31.56 | 50.98 | 42.08 | 67.98 | 39.45 | 63.73 | 52.60 | 84.97 | 63.12 | 101.97 | 84.17 | 135.96 | 94.69 | 152.95 | 118.36 | 191.19 | 142.03 | 229.43 | 14 | 37.67 | 60.86 | 50.23 | 81.14 | 66.98 | 108.19 | 62.79 | 101.43 | 83.72 | 135.24 | 100.46 | 162.29 | 133.95 | 216.38 | 150.70 | 243.43 | 188.37 | 304.29 | 226.04 | 365.15 | 16 | 58.78 | 94.95 | 78.37 | 126.60 | 104.50 | 168.81 | 97.97 | 158.26 | 130.62 | 211.01 | 156.75 | 253.21 | 209.00 | 337.61 | 235.12 | 379.81 | 293.90 | 474.77 | 352.68 | 569.72 | 18 | 80.87 | 130.64 | 107.83 | 174.18 | 143.77 | 232.24 | 134.78 | 217.73 | 179.71 | 290.30 | 215.65 | 348.36 | 287.54 | 464.49 | 323.48 | 522.55 | 404.35 | 653.18 | 485.22 | 783.82 | 20 | 114.66 | 185.22 | 152.88 | 246.96 | 203.84 | 329.28 | 191.10 | 308.70 | 254.80 | 411.60 | 305.76 | 493.92 | 407.68 | 658.56 | 458.64 | 740.88 | 573.30 | 926.10 | 687.96 | 1111.32 | 22 | 155.98 | 251.97 | 207.98 | 335.97 | 277.31 | 447.96 | 259.97 | 419.96 | 346.63 | 559.94 | 415.96 | 671.93 | 554.61 | 895.91 | 623.94 | 1007.90 | 779.92 | 1259.87 | 935.91 | 1511.85 | 24 | 198.24 | 320.24 | 264.33 | 426.99 | 352.44 | 569.32 | 330.41 | 533.74 | 440.54 | 711.65 | 528.65 | 853.98 | 704.87 | 1138.64 | 792.98 | 1280.97 | 991.22 | 1601.21 | 1189.47 | 1921.45 | 27 | 290.00 | 468.46 | 386.66 | 624.61 | 515.55 | 832.81 | 483.33 | 780.76 | 644.44 | 1041.01 | 773.32 | 1249.21 | 1031.10 | 1665.62 | 1159.98 | 1873.82 | 1449.98 | 2342.28 | 1739.98 | 2810.73 | 30 | 393.82 | 636.17 | 525.10 | 848.23 | 700.13 | 1130.98 | 656.37 | 1060.29 | 875.16 | 1413.72 | 1050.19 | 1696.46 | 1400.26 | 2261.95 | 1575.29 | 2544.70 | 1969.11 | 3180.87 | 2362.93 | 3817.04 | 33 | 535.91 | 865.70 | 714.54 | 1154.26 | 952.72 | 1539.01 | 893.18 | 1442.83 | 1190.90 | 1923.77 | 1429.08 | 2308.52 | 1905.45 | 3078.03 | 2143.63 | 3462.78 | 2679.53 | 4328.48 | 3215.44 | 5194.17 | 36 | 688.24 | 1111.77 | 917.65 | 1482.36 | 1223.54 | 1976.49 | 1147.07 | 1852.96 | 1529.42 | 2470.61 | 1835.31 | 2964.73 | 2447.08 | 3952.97 | 2752.96 | 4447.09 | 3441.20 | 5558.87 | 4129.44 | 6670.64 | 8 r u7 ^1 `% h" g. O
精加工表面(无润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级
* Y/ a2 y, k, C7 e% n/ O8 K$ W* B | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm8 K9 f8 Q6 N+ q7 i' F! I
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.16 | 0.23 | 0.22 | 0.30 | 0.29 | 0.41 | 0.27 | 0.38 | 0.36 | 0.51 | 0.43 | 0.61 | 0.58 | 0.81 | 0.65 | 0.91 | 0.81 | 1.14 | 0.98 | 1.37 | 3.5 | 0.26 | 0.36 | 0.34 | 0.48 | 0.46 | 0.64 | 0.43 | 0.60 | 0.57 | 0.80 | 0.68 | 0.96 | 0.91 | 1.28 | 1.03 | 1.44 | 1.28 | 1.79 | 1.54 | 2.15 | 4 | 0.38 | 0.53 | 0.51 | 0.71 | 0.67 | 0.94 | 0.63 | 0.89 | 0.84 | 1.18 | 1.01 | 1.42 | 1.35 | 1.89 | 1.52 | 2.12 | 1.90 | 2.66 | 2.28 | 3.19 | 5 | 0.77 | 1.07 | 1.02 | 1.43 | 1.36 | 1.91 | 1.28 | 1.79 | 1.70 | 2.39 | 2.04 | 2.86 | 2.73 | 3.82 | 3.07 | 4.29 | 3.83 | 5.37 | 4.60 | 6.44 | 6 | 1.30 | 1.82 | 1.74 | 2.43 | 2.32 | 3.24 | 2.17 | 3.04 | 2.89 | 4.05 | 3.47 | 4.86 | 4.63 | 6.48 | 5.21 | 7.29 | 6.51 | 9.12 | 7.81 | 10.94 | 7 | 2.18 | 3.06 | 2.91 | 4.08 | 3.88 | 5.44 | 3.64 | 5.10 | 4.86 | 6.80 | 5.83 | 8.16 | 7.77 | 10.88 | 8.74 | 12.24 | 10.92 | 15.29 | 13.11 | 18.35 | 8 | 3.16 | 4.43 | 4.22 | 5.90 | 5.62 | 7.87 | 5.27 | 7.38 | 7.03 | 9.84 | 8.43 | 11.81 | 11.24 | 15.74 | 12.65 | 17.71 | 15.81 | 22.14 | 18.97 | 26.56 | 10 | 6.26 | 8.77 | 8.35 | 11.69 | 11.14 | 15.59 | 10.44 | 14.62 | 13.92 | 19.49 | 16.70 | 23.39 | 22.27 | 31.18 | 25.06 | 35.08 | 31.32 | 43.85 | 37.58 | 52.62 | 12 | 10.93 | 15.30 | 14.57 | 20.39 | 19.42 | 27.19 | 18.21 | 25.49 | 24.28 | 33.99 | 29.13 | 40.79 | 38.85 | 54.38 | 43.70 | 61.18 | 54.63 | 76.48 | 65.55 | 91.77 | 14 | 17.39 | 24.34 | 23.18 | 32.46 | 30.91 | 43.28 | 28.98 | 40.57 | 38.64 | 54.10 | 46.37 | 64.92 | 61.82 | 86.55 | 69.55 | 97.37 | 86.94 | 121.72 | 104.33 | 146.06 | 16 | 27.13 | 37.98 | 36.17 | 50.64 | 48.23 | 67.52 | 45.22 | 63.30 | 60.29 | 84.40 | 72.35 | 101.28 | 96.46 | 135.05 | 108.52 | 151.93 | 135.65 | 189.91 | 162.78 | 227.89 | 18 | 37.32 | 52.25 | 49.77 | 69.67 | 66.36 | 92.90 | 62.21 | 87.09 | 82.94 | 116.12 | 99.53 | 139.35 | 132.71 | 185.79 | 149.30 | 209.02 | 186.62 | 261.27 | 223.95 | 313.53 | 20 | 52.92 | 74.09 | 70.56 | 98.78 | 94.08 | 131.71 | 88.20 | 123.48 | 117.60 | 164.64 | 141.12 | 197.57 | 188.16 | 263.42 | 211.68 | 296.35 | 264.60 | 370.44 | 317.52 | 444.53 | 22 | 71.99 | 100.79 | 95.99 | 134.39 | 127.99 | 179.18 | 119.99 | 167.98 | 159.98 | 223.98 | 191.98 | 268.77 | 255.97 | 358.36 | 287.97 | 403.16 | 359.96 | 503.95 | 431.96 | 604.74 | 24 | 91.50 | 128.10 | 122.00 | 170.80 | 162.66 | 227.73 | 152.50 | 213.49 | 203.33 | 284.66 | 243.99 | 341.59 | 325.32 | 455.45 | 365.99 | 512.39 | 457.49 | 640.48 | 548.99 | 768.58 | 27 | 133.84 | 187.38 | 178.46 | 249.84 | 237.95 | 333.12 | 223.07 | 312.30 | 297.43 | 416.40 | 356.92 | 499.69 | 475.89 | 666.25 | 535.38 | 749.53 | 669.22 | 936.91 | 803.07 | 1124.29 | 30 | 181.76 | 254.47 | 242.35 | 339.29 | 323.14 | 452.39 | 302.94 | 424.12 | 403.92 | 565.49 | 484.70 | 678.59 | 646.27 | 904.78 | 727.06 | 1017.88 | 908.82 | 1272.35 | 1090.58 | 1526.82 | 33 | 247.34 | 346.28 | 329.79 | 461.70 | 439.72 | 615.61 | 412.24 | 577.13 | 549.65 | 769.51 | 659.58 | 923.41 | 879.44 | 1231.21 | 989.37 | 1385.11 | 1236.71 | 1731.39 | 1484.05 | 2077.67 | 36 | 317.65 | 444.71 | 423.53 | 592.95 | 564.71 | 790.59 | 529.42 | 741.18 | 705.89 | 988.24 | 847.07 | 1185.89 | 1129.42 | 1581.19 | 1270.60 | 1778.84 | 1588.25 | 2223.55 | 1905.90 | 2668.26 | 4 c# a3 c9 W. U$ L; e" ?
精加工表面(有润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等级
0 ?) B. y4 ~7 B5 L y8 k | 3.6 | | 4.6 | | 4.8 | | 5.6 | | 5.8 | | 6.8 | | 8.8 | | 9.8 | | 10.9 | | 12.9 | | 螺纹直径d/mm
0 x i9 s# {7 c# }% H | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.14 | 0.19 | 0.18 | 0.25 | 0.24 | 0.34 | 0.23 | 0.32 | 0.30 | 0.42 | 0.36 | 0.51 | 0.48 | 0.68 | 0.54 | 0.76 | 0.68 | 0.95 | 0.81 | 1.14 | 3.5 | 0.21 | 0.30 | 0.28 | 0.40 | 0.38 | 0.53 | 0.36 | 0.50 | 0.47 | 0.66 | 0.57 | 0.80 | 0.76 | 1.06 | 0.85 | 1.20 | 1.07 | 1.49 | 1.28 | 1.79 | 4 | 0.32 | 0.44 | 0.42 | 0.59 | 0.56 | 0.79 | 0.53 | 0.74 | 0.70 | 0.98 | 0.84 | 1.18 | 1.12 | 1.57 | 1.26 | 1.77 | 1.58 | 2.21 | 1.90 | 2.66 | 5 | 0.64 | 0.89 | 0.85 | 1.19 | 1.14 | 1.59 | 1.07 | 1.49 | 1.42 | 1.99 | 1.70 | 2.39 | 2.27 | 3.18 | 2.56 | 3.58 | 3.20 | 4.47 | 3.83 | 5.37 | 6 | 1.09 | 1.52 | 1.45 | 2.03 | 1.93 | 2.70 | 1.81 | 2.53 | 2.41 | 3.38 | 2.89 | 4.05 | 3.86 | 5.40 | 4.34 | 6.08 | 5.43 | 7.60 | 6.51 | 9.12 | 7 | 1.82 | 2.55 | 2.43 | 3.40 | 3.24 | 4.53 | 3.03 | 4.25 | 4.05 | 5.66 | 4.86 | 6.80 | 6.47 | 9.06 | 7.28 | 10.20 | 9.10 | 12.74 | 10.92 | 15.29 | 8 | 2.64 | 3.69 | 3.51 | 4.92 | 4.68 | 6.56 | 4.39 | 6.15 | 5.86 | 8.20 | 7.03 | 9.84 | 9.37 | 13.12 | 10.54 | 14.76 | 13.18 | 18.45 | 15.81 | 22.14 | 10 | 5.22 | 7.31 | 6.96 | 9.74 | 9.28 | 12.99 | 8.70 | 12.18 | 11.60 | 16.24 | 13.92 | 19.49 | 18.56 | 25.98 | 20.88 | 29.23 | 26.10 | 36.54 | 31.32 | 43.85 | 12 | 9.10 | 12.75 | 12.14 | 16.99 | 16.19 | 22.66 | 15.17 | 21.24 | 20.23 | 28.32 | 24.28 | 33.99 | 32.37 | 45.32 | 36.42 | 50.98 | 45.52 | 63.73 | 54.63 | 76.48 | 14 | 14.49 | 20.29 | 19.32 | 27.05 | 25.76 | 36.06 | 24.15 | 33.81 | 32.20 | 45.08 | 38.64 | 54.10 | 51.52 | 72.13 | 57.96 | 81.14 | 72.45 | 101.43 | 86.94 | 121.72 | 16 | 22.61 | 31.65 | 30.14 | 42.20 | 40.19 | 56.27 | 37.68 | 52.75 | 50.24 | 70.34 | 60.29 | 84.40 | 80.38 | 112.54 | 90.43 | 126.60 | 113.04 | 158.26 | 135.65 | 189.91 | 18 | 31.10 | 43.55 | 41.47 | 58.06 | 55.30 | 77.41 | 51.84 | 72.58 | 69.12 | 96.77 | 82.94 | 116.12 | 110.59 | 154.83 | 124.42 | 174.18 | 155.52 | 217.73 | 186.62 | 261.27 | 20 | 44.10 | 61.74 | 58.80 | 82.32 | 78.40 | 109.76 | 73.50 | 102.90 | 98.00 | 137.20 | 117.60 | 164.64 | 156.80 | 219.52 | 176.40 | 246.96 | 220.50 | 308.70 | 264.60 | 370.44 | 22 | 59.99 | 83.99 | 79.99 | 111.99 | 106.66 | 149.32 | 99.99 | 139.99 | 133.32 | 186.65 | 159.98 | 223.98 | 213.31 | 298.64 | 239.98 | 335.97 | 299.97 | 419.96 | 359.96 | 503.95 | 24 | 76.25 | 106.75 | 101.66 | 142.33 | 135.55 | 189.77 | 127.08 | 177.91 | 169.44 | 237.22 | 203.33 | 284.66 | 271.10 | 379.55 | 304.99 | 426.99 | 381.24 | 533.74 | 457.49 | 640.48 | 27 | 111.54 | 156.15 | 148.72 | 208.20 | 198.29 | 277.60 | 185.90 | 260.25 | 247.86 | 347.00 | 297.43 | 416.40 | 396.58 | 555.21 | 446.15 | 624.61 | 557.69 | 780.76 | 669.22 | 936.91 | 30 | 151.47 | 212.06 | 201.96 | 282.74 | 269.28 | 376.99 | 252.45 | 353.43 | 336.60 | 471.24 | 403.92 | 565.49 | 538.56 | 753.98 | 605.88 | 848.23 | 757.35 | 1060.29 | 908.82 | 1272.35 | 33 | 206.12 | 288.57 | 274.82 | 384.75 | 366.43 | 513.00 | 343.53 | 480.94 | 458.04 | 641.26 | 549.65 | 769.51 | 732.86 | 1026.01 | 824.47 | 1154.26 | 1030.59 | 1442.83 | 1236.71 | 1731.39 | 36 | 264.71 | 370.59 | 352.94 | 494.12 | 470.59 | 658.83 | 441.18 | 617.65 | 588.24 | 823.54 | 705.89 | 988.24 | 941.18 | 1317.66 | 1058.83 | 1482.36 | 1323.54 | 1852.96 | 1588.25 | 2223.55 |
0 ~4 u8 ~! ~3 i2 r2 C" W 一般表面(无润滑)的螺纹联接的拧紧力矩值(单位:N.m) 性能等 级
0 ?4 B0 F9 }. R) L0 b | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | 螺纹直径d/mm4 j9 P: f V5 p% p0 h( c( V& b
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | 3 | 0.24 | 0.40 | 0.33 | 0.53 | 0.43 | 0.71 | 0.41 | 0.67 | 0.54 | 0.89 | 0.65 | 1.06 | 0.87 | 1.42 | 0.98 | 1.60 | 1.22 | 2.00 | 1.47 | 2.40 | 3.5 | 0.38 | 0.63 | 0.51 | 0.84 | 0.68 | 1.12 | 0.64 | 1.05 | 0.85 | 1.40 | 1.03 | 1.67 | 1.37 | 2.23 | 1.54 | 2.51 | 1.92 | 3.14 | 2.31 | 3.77 | 4 | 0.57 | 0.93 | 0.76 | 1.24 | 1.01 | 1.65 | 0.95 | 1.55 | 1.26 | 2.07 | 1.52 | 2.48 | 2.02 | 3.30 | 2.28 | 3.72 | 2.84 | 4.65 | 3.41 | 5.58 | 5 | 1.15 | 1.88 | 1.53 | 2.50 | 2.04 | 3.34 | 1.92 | 3.13 | 2.56 | 4.17 | 3.07 | 5.01 | 4.09 | 6.68 | 4.60 | 7.51 | 5.75 | 9.39 | 6.90 | 11.27 | 6 | 1.95 | 3.19 | 2.60 | 4.25 | 3.47 | 5.67 | 3.26 | 5.32 | 4.34 | 7.09 | 5.21 | 8.51 | 6.95 | 11.35 | 7.81 | 12.76 | 9.77 | 15.96 | 11.72 | 19.15 | 7 | 3.28 | 5.35 | 4.37 | 7.14 | 5.83 | 9.52 | 5.46 | 8.92 | 7.28 | 11.90 | 8.74 | 14.27 | 11.65 | 19.03 | 13.11 | 21.41 | 16.39 | 26.76 | 19.66 | 32.12 | 8 | 4.74 | 7.75 | 6.32 | 10.33 | 8.43 | 13.77 | 7.91 | 12.91 | 10.54 | 17.22 | 12.65 | 20.66 | 16.87 | 27.55 | 18.97 | 30.99 | 23.72 | 38.74 | 28.46 | 46.48 | 10 | 9.40 | 15.35 | 12.53 | 20.46 | 16.70 | 27.28 | 15.66 | 25.58 | 20.88 | 34.10 | 25.06 | 40.92 | 33.41 | 54.57 | 37.58 | 61.39 | 46.98 | 76.73 | 56.38 | 92.08 | 12 | 16.39 | 26.77 | 21.85 | 35.69 | 29.13 | 47.59 | 27.31 | 44.61 | 36.42 | 59.48 | 43.70 | 71.38 | 58.27 | 95.17 | 65.55 | 107.07 | 81.94 | 133.83 | 98.33 | 160.60 | 14 | 26.08 | 42.60 | 34.78 | 56.80 | 46.37 | 75.73 | 43.47 | 71.00 | 57.96 | 94.67 | 69.55 | 113.60 | 92.74 | 151.47 | 104.33 | 170.40 | 130.41 | 213.00 | 156.49 | 255.60 | 16 | 40.69 | 66.47 | 54.26 | 88.62 | 72.35 | 118.16 | 67.82 | 110.78 | 90.43 | 147.71 | 108.52 | 177.25 | 144.69 | 236.33 | 162.78 | 265.87 | 203.47 | 332.34 | 244.17 | 398.81 | 18 | 55.99 | 91.45 | 74.65 | 121.93 | 99.53 | 162.57 | 93.31 | 152.41 | 124.42 | 203.21 | 149.30 | 243.86 | 199.07 | 325.14 | 223.95 | 365.78 | 279.94 | 457.23 | 335.92 | 548.67 | 20 | 79.38 | 129.65 | 105.84 | 172.87 | 141.12 | 230.50 | 132.30 | 216.09 | 176.40 | 288.12 | 211.68 | 345.74 | 282.24 | 460.99 | 317.52 | 518.62 | 396.90 | 648.27 | 476.28 | 777.92 | 22 | 107.99 | 176.38 | 143.99 | 235.18 | 191.98 | 313.57 | 179.98 | 293.97 | 239.98 | 391.96 | 287.97 | 470.35 | 383.96 | 627.14 | 431.96 | 705.53 | 539.95 | 881.91 | 647.94 | 1058.29 | 24 | 137.25 | 224.17 | 183.00 | 298.89 | 243.99 | 398.52 | 228.74 | 373.62 | 304.99 | 498.15 | 365.99 | 597.78 | 487.99 | 797.05 | 548.99 | 896.68 | 686.23 | 1120.85 | 823.48 | 1345.01 | 27 | 200.77 | 327.92 | 267.69 | 437.23 | 356.92 | 582.97 | 334.61 | 546.53 | 446.15 | 728.71 | 535.38 | 874.45 | 713.84 | 1165.93 | 803.07 | 1311.68 | 1003.83 | 1639.59 | 1204.60 | 1967.51 | 30 | 272.65 | 445.32 | 363.53 | 593.76 | 484.70 | 791.68 | 454.41 | 742.20 | 605.88 | 989.60 | 727.06 | 1187.52 | 969.41 | 1583.37 | 1090.58 | 1781.29 | 1363.23 | 2226.61 | 1635.88 | 2671.93 | 33 | 371.01 | 605.99 | 494.68 | 807.98 | 659.58 | 1077.31 | 618.35 | 1009.98 | 824.47 | 1346.64 | 989.37 | 1615.97 | 1319.16 | 2154.62 | 1484.05 | 2423.95 | 1855.06 | 3029.93 | 2226.07 | 3635.92 | 36 | 476.47 | 778.24 | 635.30 | 1037.66 | 847.07 | 1383.54 | 794.12 | 1297.07 | 1058.83 | 1729.43 | 1270.60 | 2075.31 | 1694.13 | 2767.08 | 1905.90 | 3112.97 | 2382.37 | 3891.21 | 2858.85 | 4669.45 | 4 I* e" V! K/ z& \5 o* @; _4 C0 o3 O
: m, }" d9 u5 a$ w6 U1 w0 L9 c5 _# l% {+ Q; g6 U* d' i
三、螺栓扭紧的力矩计算方法 file:///C:/Users/Amplly/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif=KF0d(N·mm)% R: o* n* L( h% s
d螺纹公称直径,mm4 W" I, N/ ~+ x$ T% _
F0预紧力,N7 Z; v$ `0 r" ~* M, O
K拧紧力矩系数/ k6 H3 K4 B7 i& X0 C* [
T拧紧力矩! _2 @2 F, I% g% H) |# y( F/ d+ v
d2螺纹中径,mm& K+ t4 r# F3 Z2 \
ω螺纹升角
2 [0 P; f: q- Sρv 螺纹当量摩擦角
9 V5 E0 l- |! ` @μ螺母与被连接件的支承面间的摩托擦因数
* T( T- ?$ s& b& ]0 Z, {5 i P# v% iDw与支承平面连接的螺母或者垫圈的直径
9 k8 E* v& B3 M+ n# _d0螺纹外径$ n! d& z# o! ~- {
|