不锈钢和有色金属紧固件的扭矩值(公制系列)

2023/3/2 9:05:29
不锈钢和有色金属紧固件的扭矩值(公制系列)
公称直径每英寸螺纹数18-8&316不锈钢硅青铜铜镍合金黄铜2024-T4铝
干燥润滑
粗牙系列
2562.5in-lbs2.3in-lbs2.3in-lbs2.5in-lbs2.0in-lbs1.4in-lbs
4405.44.94.85.34.32.9
54087.27.17.86.34.2
6321098.99.87.95.3
83218.416.518.420.216.210.8
102426.62421.225.918.613.8
1/42063.657.368.885.361.545.6
5/161813111812314910780
3/81619.4ft-lbs17.4ft-lbs18.3ft-lbs22.2ft-lbs16.0ft-bs11.9ft-lbs
7/16143127.929.135.626.419
1/21347434048.735.226
5/8119485861117660
3/41012511311815310482
7/89202182178231159124
18303273265344235184
细牙系列
2642.7in-lbs2.4in-lbs2.8in-lbs3.1in-lbs2.5in-lbs1.7in-lbs
4485.95.36.16.75.43.6
5448.37.58.79.67.75.1
64011.210.111.212.39.96.6
83619.317.420.422.41812
103230.427.429.334.925.919.2
1/4287365871067757
5/162414513113116011686
3/82422.0ft-lbs19.8ft-lbs20.0ft-lbs24.5ft-lbs17.7ft-lbs13.1ft-lbs
7/162034.631.230.937.627.320.2
1/220534842513727
5/81810796961238567
3/41614012611514910280
7/814223201177230158124
114340306240311212166
根据实验室的实际测验结果,建议在不锈钢和有色金属上采用最大的扭矩值。不锈钢紧固件在旋紧时易发生咬死。降低螺纹咬死风险发生方法有:使用润滑剂、用较低的RPMs旋紧紧固件且中间不间断、使用较小的压力以及尽可能避免使用预置扭矩锁紧螺母。扭矩值小于等于5/16项下的单位为英寸-磅;其他扭矩单位为英尺-磅。