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螺栓拧紧力矩计算
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螺栓
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拧紧力矩
- 螺栓
- 拧紧力矩
| 用力矩扳手正规测定拧紧力矩 | ||||||||||
| 螺栓规格 d mm | 螺距 P mm | 计算拧紧力矩 T Nm | ss MPa | 螺栓公称应力截面积As mm2 | 外螺纹小径 d1 mm | 外螺纹中径 d2 mm | 螺纹原始三角形高度H mm | 计算直径 d3 mm | 0.8*T Nm | 0.6*T Mm |
| 30 | 3.5 | 1291.59 | 640 | 560.5871854 | 26.21113886 | 27.72668331 | 3.0310889 | 25.7059574 | 1033.27 | 774.96 |
| 螺纹规格 | 螺距 | 螺纹联接件常用材料及机械性能 | 通常取计算值的0.8倍左右作为实际应用的拧紧力矩值. | |||||||
| M8 | 1.25, 1,0.75,(0.5) | 钢号 |
sb MPa
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ss MPa
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| M10 | 1.5, 1.25,1,0.75,(0.5) | 10 | 335~400 | 205 | ||||||
| M12 | 1.75, 1.5,1.25,1,(0.75),(0.5) | Q235-A | 375~460 | 235 | ||||||
| M14 | 2, 1.5,(1.25),1,(0.75),(0.5) | 35 | 530 | 315 | ||||||
| M16 | 2, 1.5,1,(0.75),(0.5) | 45 | 600 | 355 | ||||||
| M18 | 2.5, 2,1.5,1,(0.75),(0.5) | 40Cr | 980 | 785 | ||||||
| M20 | 2.5, 2,1.5,1,(0.75),(0.5) | |||||||||
| M24 | 3, 2,1.5,1,(0.75) | |||||||||
| M27 | 3, 2,1.5,1,(0.75) | 螺纹联接件对应强度等级的机械性能 | ||||||||
| M30 | 3.5, (3),2,1.5,1,(0.75) | 等级 |
sb MPa
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ss MPa
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| M33 | 3.5, (3),2,1.5,(1),(0.75) | 3.6 | 300 | 180 | ||||||
| M36 | 4, 3,2,1.5,(1) | 4.8 | 400 | 320 | ||||||
| M39 | 4, 3,2,1.5,(1) | 5.6 | 500 | 300 | ||||||
| M42 | 4.5, (4),3,2,1.5,(1) | 8.8 | 800 | 640 | ||||||
| M48 | 5, (4),3,2,1.5,(1) | 10.9 | 1040 | 900 | ||||||
| M52 | 5, (4),3,2,1.5,(1) | |||||||||
| M56 | 5.5, 4,3,2,1.5,(1) | |||||||||
| M60 | (5.5), 4,3,2,1.5,(1) | |||||||||
| M64 | 6, 4,3,2,1.5,(1) | |||||||||
| M68 | 6, 4,3,2,1.5,(1) | |||||||||
| M72 | 6, 4,3,2,1.5,(1) | |||||||||
| M76 | 6, 4,3,2,1.5,(1) | |||||||||
| M80 | 6, 4,3,2,1.5,(1) | |||||||||
