英制螺纹标准

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1、螺栓预紧力推荐表强度等级4.86.88.810.9最小破断强度392MPa588MPa784MPa941MPa材质一般构造用钢机械构造用钢铬钼合金钢镍铬钼合金钢螺栓螺母扭矩值扭矩值扭矩值扭矩值MmmKGMN.MKGMN.MKGMN.MKGM14227691098141371716241098141372120625182714137212062928435203018176282964140258223223225343335553978243632314484707068610027414544165637

2、10510291503046605889088212512252003350757351151127150147021036551009801501470180176425039601201176180176422021563004265155151924023522802744390457018017642802744320313645048752302254350343040039205705280280274442041164804704670568536035285305149610597886060

3、90410401861059787907742110064955104998760744890088206810058056848708526110010780721056606468100098001290126427611075073501100107801500147018011583081431250122501850181308512090088201400137202250220509013010801058416501617025002450010014514001372020502009011

4、0155167016366255024990120175203019894305029890注：表中数值为德国工业标准，在螺栓达到屈服极限的80%时所测定的。螺栓预紧力推荐表10.912.9941MPa1176MPa镍铬钼合金钢镍铬钼合金钢扭矩值扭矩值N.MKGMN.M16523225247363633414948056969680765939119811201176147218017641962240235220602502450245330029402943370362638264704606441555

5、053905592680666465738508330843710501029010791135013230注：表中数值为德国工业标准，在螺栓达到屈服极限的80%时所测定的。螺栓预紧力推荐强度等级4.8最小破断强度MPa材质一般构造用钢螺栓螺母MAXMIN扭矩值MmmKGM17/4(0.25)/160.438(11.1252)0.425(10.795)59/16(0.3125)/160.562(14.2748)0.547(13.8938)35/8(0.3750)/80.625(15.875)0.606(15.

6、3924)73/16(0.4375)/40.75(19.05)0.728(18.4912)113/2(0.5000)/640.812(20.6248)0.788(20.0152)5/8(0.625)11(25.4)0.969(24.6126)31/4(0.75)1-/81.125(28.575)1.088(27.6352)75/8(0.875)1-/161.312(33.3248)1.269(32.2326)11(1)1-/21.5(38.1)1.45(36.83)1111-/8(1.125)1-/161.6

7、88(42.8752)1.631(41.4274)171-/4(1.25)1-/81.875(47.625)1.812(46.0248)311-/8(1.375)2-/162.062(52.3748)1.994(50.6476)111-/2(1.5)2-/42.25(57.15)2.175(55.245)螺栓预紧力推荐表4.86.88.810.912.9MPaMPaMPaMPa一般构造用钢机械构造用钢铬钼合金钢镍铬钼合金钢镍铬钼合金钢扭矩值扭矩值扭矩值扭矩值扭矩值N.MKGMN.MKGMN.MKGMN.MKG

8、MN.M