GB/T16823.2-197 附录A (标准的附录) 螺纹摩擦系数、支承面摩擦系数与扭矩系数的对照表 表A1螺纹摩擦系数(两)、支承面摩擦系数(脚)与扭矩系数(K)的对照表 瞧)粗牙螺纹、六角头螺栓、螺母 0.080.100.120.150.200.250.300350 45 0.080.17013001430.1630.1950.2280.2610.2940.3260359 0,00.170.1400.1530.1730.2060.29010340330.369 0201380.1510.1640184.260.2490.28303403470.380 050.1540.1670300.190.:20c02502870.300353036 0.200.1800.1930.2060.260.2580.210.3240.3560.3890422 0250.206021902820.252028403170.35003830415048 0300.2320250.80.:780310.34303760409042074 0350258027102850.3040370.370040204350468a500 040028502980.310.30 0.3960.4290.4610.4940527 045031103240.3370.35 3 0.4220.4550.4870.5200553 b)细牙螺纹、六角头螺栓、螺母 脚0080100.120150.20025030035040045 00801001301501360187021902520.2840.3160.348 0100.121013401470.1660.190 050.1480.1610.1740.1930.250.270.900320.3540.36 0200.1750.1880.2010.200.2520.240.3703490.38.413 0300.2200.2420.2550.27403060.3390.3710.4030.4350.468 0.3502560.2690282030103340.360.3980400.4620495 04002830.296030903280.3610.33045045704900.522 0.45 0.3880.4200.4520.4840.5170.549 注:K值按式(2)计算给出。其中;d2按GB9145中径最小值选取按GB5277中等装配系列选取dw按 迅304标准系列值乘以095(即095X)选取附 录 标准的附录 螺纹摩擦系数 支承面摩擦系数与扭矩系数的对照表 表 螺纹摩擦系数 支承面摩擦系数 与扭矩系数 的对照表 粗牙螺纹 六角头螺栓 螺母 细牙螺纹 六角头螺栓 螺母 注 值按式 计算给出 其中 按 中径最小值选取 按 中等装配系列选取 按 标准系列值乘以 即 选取