最新英制螺纹对照表.doc

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1、最新英制螺纹对照表　　名义尺寸大径螺距每英寸牙数中径小径牙型高底孔直径BAmmmmtpimm外螺纹H1mmd=Dpd2=D2d3No.14BA10.23110.40.860.720.140.75No.13BA1.20.25101.61.050.90.150.95No.12BA1.30.2890.711.130.960.171No.11BA1.50.3181.931.3151.130.1851.2No.10BA1.70.3572.571.491.280.211.35No.9BA1.90.3965.121.6651.430.23

2、51.5No.8BA2.20.4359.071.941.680.261.8No.7BA2.50.4852.922.211.920.292No.6BA2.80.5347.922.482.160.322.3No.5BA3.20.5943.052.8452.490.3552.6No.4BA3.60.6638.483.2052.810.3952.95No.3BA4.10.7334.793.663.220.443.4No.2BA4.70.8131.354.2153.730.4853.9No.1BA5.30.928.224.764.22

3、0.544.4No.0BA6125.45.44.80.65基本尺寸大径螺距每英寸牙数中径小径牙型高度圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmmd=D最新英制螺纹对照表　　名义尺寸大径螺距每英寸牙数中径小径牙型高底孔直径BAmmmmtpimm外螺纹H1mmd=Dpd2=D2d3No.14BA10.23110.40.860.720.140.75No.13BA1.20.25101.61.050.90.150.95No.12BA1.30.2890.711.130.960.171No.11BA1.50.3181.931.3

4、151.130.1851.2No.10BA1.70.3572.571.491.280.211.35No.9BA1.90.3965.121.6651.430.2351.5No.8BA2.20.4359.071.941.680.261.8No.7BA2.50.4852.922.211.920.292No.6BA2.80.5347.922.482.160.322.3No.5BA3.20.5943.052.8452.490.3552.6No.4BA3.60.6638.483.2052.810.3952.95No.3BA4.10.73

5、34.793.663.220.443.4No.2BA4.70.8131.354.2153.730.4853.9No.1BA5.30.928.224.764.220.544.4No.0BA6125.45.44.80.65基本尺寸大径螺距每英寸牙数中径小径牙型高度圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R1/161/16＂7.7230.907287.1426.5610.5810.1256.4R1/81/8＂9.7280.907289.1478.5660.5810.1258.4R1/41/4＂1

6、3.1571.3371912.30111.4450.8560.18411.2R3/83/8＂16.6621.3371915.80614.950.8560.18414.75R1/21/2＂20.9551.8141419.79318.6311.1620.24918.25R3/43/4＂26.4411.8141425.27924.1171.1620.24923.75R11＂33.2492.3091131.7730.2911.4790.31730R11/411/4＂41.912.3091140.43138.9521.4790.317

7、38.5R11/211/2＂47.8032.3091146.32444.8451.4790.31744.5R22＂59.6142.3091158.13556.6561.4790.31756R21/221/2＂75.1842.3091173.70572.2261.4790.31771R33＂87.8842.3091186.40584.9261.4790.31785.5R44＂113.032.30911111.551110.0721.4790.317110.5R55＂138.432.30911136.951135.4721.47

8、90.317136R66＂163.832.30911162.351160.8721.4790.317161.5英制普通螺纹(惠氏螺纹)--小螺纹系列(BA)牙型代号螺纹代号（xx-03-1314:38:47）55°圆锥管螺纹型式和尺寸名义尺寸大径螺距每英寸牙数中径小径牙型高底孔直径Wwmm