英制普通螺纹.docx

英制普通螺纹（惠氏螺纹）-小螺纹系列（BA)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径No. 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. 9BA1.90.3965.121.6651.430.2351.5No. 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. 3BA4.10.7334.793.663.220.443.4No. 2BA4.70.8131.354.2153.730.4853.9No. 1BA5.30.928.224.764.220.544.4No. 0BA6125.45.44.80.6555圆锥管螺纹型式和尺寸螺纹代号基本尺寸大径螺距每英寸牙数中径小径牙型高圆弧尺寸底孔尺寸英寸mmmmtpimm外螺纹H1rmmd=Dpd2=D2d3R 1/161/16 ”7.720.907287.1426.5610.5810.1256.4R 1/81/8 ”9.730.907289.1478.5660.5810.1258.4R 1/41/4 ”13.21.3371912.30111.450.8560.18411.2R 3/83/8 ”16.71.3371915.80614.950.8560.18414.75R 1/21/2 ”211.8141419.79318.631.1620.24918.25R 3/43/4 ”26.41.8141425.27924.121.1620.24923.75R 11 33.22.3091131.7730.291.4790.31730R 1 1/41 1/4 ”41.92.3091140.43138.951.4790.31738.5R 1 1/21 1/2 ”47.82.3091146.32444.851.4790.31744.5R 22 ”59.62.3091158.13556.661.4790.31756R 2 1/22 1/2 ”75.22.3091173.70572.231.4790.31771R 33 ”87.92.3091186.40584.931.4790.31785.5R 44 ”1132.30911111.55110.11.4790.317110.5R 55 ”1382.30911136.95135.51.4790.317136R 66 ”1642.30911162.35160.91.4790.317161.5RC2英寸锥管螺纹，每英寸11牙，螺距=25.4/11即2.309，牙高（深)=2.309x0.64即1.479，锥度是固定的 即1: 16，R等于1/32乘以长度，1/32意思是，锥螺纹的锥度是1: 16，单边就是1: 32，长度意思是：定 位点加有效长度，比如我定位3.0，有效长度是12.0，R=1/32 X (3+12) =0.46875英制普通螺纹（惠氏螺纹）一粗牙（BSW)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径Wwmmmmtpimm外螺纹H1mmd=DPd2=D2d31/16 ”BSW1.590.423601.3151.050.271.153/32 ”BSW2.380.529482.0411.7030.3381.91/8 ”BSW3.180.635402.7682.3620.4062.55/32 ”BSW3.970.793323.4592.9520.5073.23/16 ”BSW4.761.058244.0843.4070.6773.77/32 ”BSW5.561.058244.8784.2010.6774.51/4 ”BSW6.351.27205.5374.7240.8135.15/16 ”BSW7.941.411187.0346.1310.9046.53/8 ”BSW9.531.588168.5097.4921.0177.97/16 ”BSW11.11.814149.9518.7891.1629.21/2 ”BSW12.72.1171211.3459.991.35510.45/8 ”BSW15.92.3091114.39712.921.47913.43/4 ”BSW19.12.541017.42415.81.62716.257/8 ”BSW22.22.822920.41918.611.80719.251 BSW25.43.175823.36821.342.033221 1/8 ”BSW28.63.629726.25323.932.32424.51 1/4 ”BSW31.83.629729.42827.12.32427.251 3/8 ”BSW34.94.233632.21529.512.71130.251 1/2 ”BSW38.14.233635.39132.682.71133.51 5/8 ”BSW41.35.08538.02434.773.25335.51 3/4 ”BSW44.55.08541.19937.953.25338.51 7/8 ”BSW47.65.6454 1/244.01240.43.61441.252 ”BSW50.85.6454 1/247.18743.573.61444.52 1/4 ”BSW57.26.35453.08649.024.066502 1/2 ”BSW63.56.35459.43655.374.066562 3/4 ”BSW69.97.2573 1/265.20560.564.64761.53 ”BSW76.27.2573 1/271.55666.914.647683 1/4 ”BSW82.67.8163 1/477.54872.545.00573.753 1/2 ”BSW88.97.8163 1/483.89978.895.005803 3/4 ”BSW95.38.467389.83284.415.42285.54 ”BSW1028.467396.18290.765.422924 1/4 ”BSW1088.8352 7/8102.396.645.657984 1/2 ”BSW1148.8352 7/8108.651035.657104.24 3/4 ”BSW1219.2372 3/4114.74108.65.9151105 ”BSW1279.2372 3/4121.09115.25.915116.55 1/4 ”BSW1339.6772 5/8127.161216.196122.55 1/2 ”BSW1409.6772 5/8133.51127.36.196128.55 3/4 ”BSW14610.162 1/2139.551336.506134.56 ”BSW15210.162 1/2145.9139.46.506141英制普通螺纹（惠氏螺纹）一细牙（BSF)名义尺寸牙型代号大径螺距每英寸牙数中径小径牙型高底孔直径BSFmmmmtpimm外螺纹H1mmd=DPd2=D2d33/16BSF4.760.794324.2553.7470.50847/32BSF5.560.907284.9754.3940.5814.61/4BSF6.350.977265.7255.10.6255.39/32BSF7.140.977266.5185.8930.6256.15/16BSF7.941.156227.1996.4590.7396.83/8BSF9.531.27208.7127.8990.8138.37/16BSF11.11.4111810.2099.3040.9049.71/2BSF12.71.5881611.68410.671.01711.19/16BSF14.31.5881613.27212.261.01712.75/8BSF15.91.8141414.71213.551.1621411/16BSF17.51.8141416.315.141.16215.53/4BSF19.12.1171217.69316.341.35516.7513/16BSF20.62.1171219.28117.921.35518.257/8BSF22.22.3091120.74719.271.47919.751.00BSF25.42.541023.77422.151.62722.751 1/8BSF28.62.822926.76924.961.80726.51 1/4BSF31.82.822929.94428.141.80728.751 3/8BSF34.93.175832.89330.862.03331.51 1/2BSF38.13.175836.06834.042.03334.51 5/8BSF41.33.175839.24337.212.033381 3/4BSF44.53.629742.12639.82.32440.52BSF50.83.629748.47646.152.324472 1/4BSF57.24.234654.4451.732.711532 1/2BSF63.54.234660.7958.082.711592 3/4BSF69.94.234667.1464.432.711-3BSF76.25.08572.94669.693.253-3 1/4BSF82.65.08579.29676.043.253-3 1/2BSF88.95.6454 1/285.28581.673.614-3 3/4BSF95.35.6454 1/291.63588.023.614-4BSF1025.6454 1/297.98594.373.614-4 1/4BSF1086.354103.8999.824.066-55圆柱管螺纹的型式和尺寸British Pipe Thread (惠氏管螺纹）-圆柱（BSPP/BSPF)螺纹代号基本尺寸大径螺距每英寸牙数中径小径牙型高度底孔尺寸mmmmtpimm外螺纹H1mmd=Dpd2=D2d3G 1/81/8 ”9.730.907289.1478.5660.5818.7G 1/41/4 ”13.21.3371912.30111.450.85611.6G 3/83/8 ”16.71.3371915.80614.950.85615G 1/21/2 ”211.8141419.79318.631.16219G 5/85/8 ”22.91.8141421.74920.591.16220.75G 3/43/4 ”26.41.8141425.27924.121.16224.5G 7/87/8 ”30.21.8141429.03927.881.16228G 11 33.22.3091131.7730.291.47930.5G 1 1/81 1/8 ”37.92.3091136.41834.941.47935G 1 1/41 1/4 ”41.92.3091140.43138.951.47939.5G 1 3/81 3/8 ”44.32.3091142.84441.371.47941.5G 1 1/21 1/2 ”47.82.3091146.32444.851.47945G 1 3/41 3/4 ”53.72.3091152.26750.791.47951G 22 ”59.62.3091158.13556.661.47957G 2 1/42 1/4 ”65.72.3091164.23162.751.47963G 2 1/22 1/2 ”75.22.3091173.70572.231.47972.5G 2 3/42 3/4 ”81.52.3091180.05578.581.47979G 33 ”87.92.3091186.40584.931.47985.5G 3 1/43 1/4 ”942.3091192.50191.021.47991G 3 1/23 1/2 ”1002.3091198.35197.371.47997.75G 3 3/43 3/4 ”1072.30911105.2103.71.479104G 44 ”1132.30911111.55110.11.479110.5G 4 1/24 1/2 ”1262.30911124.25122.81.479123G 55 ”1382.30911136.95135.51.479136G 5 1/25 1/2 ”1512.30911149.65148.21.479148.5G 66 ”1642.30911162.35160.91.479161.51 、密封管螺纹（R)英制密封管螺纹的基本尺寸及其公差 配合方式英制密封管螺纹有两种配合方式：圆柱内螺纹与圆锥外螺纹组成“柱/锥”配合；圆锥内螺纹与圆锥 外螺纹组成“锥/锥”配合.欧洲国家主要采用“柱/锥”配合螺纹；而欧洲以外国家则主要采用“柱/锥”配合螺纹.两种螺纹的检验 量规存在一定不同；目前的ISO英制密封管螺纹量规标准（ISO 7-2： 2000)是按“柱/锥”配合体系设计英制密封管螺纹的完整标记由螺纹特征代号、螺纹尺寸代号和旋向代号组成.英制密封圆柱内螺纹的特征代号为：RP;英制密封圆锥内螺纹的特征代号为：RC;英制密封圆锥外螺纹的特征代号为：R1 (与英制密封圆柱内螺纹配合使用）；R