各国标准 螺纹基本尺寸对照表精编版.docx

1、各国标准 螺纹基本尺寸对照表精编版英制管螺纹基本尺寸及公差（牙形角55） BSPP螺纹代号基本直径内螺纹外螺纹大径中径小径中径公差小径公差A级B级中径公差大径公差中径公差大径公差G1/8289.7289.1478.566+0.170+0.28200-0.1070-0.2140-0.2140-0.214G1/41913.15712.30111.445+0.125+0.445-0.125-0.250-0.2500-0.250G3/81916.66215.80614.950+0.1250+0.44500-0.1250-0.2500-0.2500-0.250G1/21420.95519.79318.6

2、31+0.1420+0.54100-0.1420-0.2840-0.2840-0.284G5/81422.91121.74920.587+0.1420+0.54100-0.1420-0.2840-0.2840-0.284G3/41426.44125.27924.117+0.1420+0.54100-0.1420-0.2840-0.2840-0.284G11133.24931.77030.291+0.1800+0.64000-0.1800-0.3600-0.3600-0.360G1.1/41141.91040.43138.952+0.1800+0.64000-0.1800-0.3600-0.36

3、00-0.360G1.1/21147.80346.32444.854+0.1800+0.64000-0.1800-0.3600-0.3600-0.360G21159.61458.13556.656+0.1800+0.64000-0.1800-0.3600-0.3600-0.360G2.1/2”X1175.18473.70572.226+0.2170+0.64000-0.2170-0.4340-0.4340-0.434G3”X1187.88486.40584.926+0.2170+0.64000-0.2170-0.4340-0.4340-0.434G3.1/2”X11100.33098.8519

4、7.372+0.2170+0.64000-0.2170-0.4340-0.4340-0.434英制锥管螺纹基本尺寸及公差（牙形角55） BSPT螺纹代号基面上的直径基准长度有效螺纹长度圆锥内螺纹基面轴向位移偏差（mm）大径中径小径基本最大最小基本最大最小R1/8289.7289.1478.5664.04.93.16.57.45.61.1R1/41913.15712.30111.4456.07.34.79.711.08.41.7R3/81916.66215.80614.9506.47.75.110.111.48.81.7R1/21420.95519.79318.6318.210.06.413.2

5、15.011.42.3R3/41426.44125.27924.1179.511.37.714.516.312.72.3R11133.24931.77030.29110.412.78.116.819.114.52.9R1.1/41141.91040.43138.95212.715.010.419.121.416.82.9R1.1/21147.80346.32444.84512.715.010.419.121.416.82.9R21159.61458.13556.65615.918.213.623.425.721.12.9R2.1/2”X1175.18473.70572.22617.521.01

6、4.026.730.223.23.5R3”X1187.88486.40584.92620.624.117.129.833.326.33.5R3.1/2”X11100.33098.85197.37222.225.718.731.434.927.93.5美制管螺纹基本尺寸及公差（牙形角60） UN(F)螺纹代号外螺纹内螺纹公差等级公差等级2A2B大径中径小径小径中径大径最大最小最大最小最小最大最小最大JIC螺纹7/1620UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.1131/220UNF12.66712.46111.84111

7、.73211.15611.32811.60811.87512.01712.79/1618UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.2883/416UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.057/814UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.2251-1/1612UN26.94426.65525.5725.42524.42524.68925.14625.61325.

8、80126.9881-5/1612UN33.29433.00531.9231.77330.77531.03931.49631.96332.15433.3381-5/812UN41.22940.9439.88539.70538.7138.98939.44639.90140.09441.2751-7/812UN47.57947.2946.20546.05345.0645.33945.79646.25146.44947.6252-1/212UN63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS螺纹9/1618UNF14.2521

9、4.03113.33513.22112.57312.75113.08113.37113.5214.28811/1616UN17.42717.18816.39616.27415.53515.74816.10416.43116.58917.46313/1616UN20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638114UNF25.35725.09524.17824.03623.19523.44423.82524.22124.40725.41-3/1612UN30.11929.8328.74528.59827.627.86428.

10、32128.78828.97930.1631-7/1612UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.5131-11/1612UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863212UN50.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE螺纹5/818UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.8751-1/1

11、614UN26.94726.68325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺纹9/1616UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.2887/812UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.2252-1/412UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注：UNC粗牙螺纹系列，UNF细牙螺纹系列， UNEF超细

12、牙螺纹系列， UN不变螺距系列布锥管螺纹基本尺寸及公差(牙形角60) NPT螺纹代号基面上的直径螺纹长度大径中径小径有效长度管端至基面长Z1/82710.2729.5198.76674.572Z1/41813.57212.44311.3149.55.080Z3/81817.05515.92614.79710.56.096Z1/21421.22319.77218.32113.58.028Z3/41426.56825.11723.666148.611Z111.533.22831.46129.69417.510.160Z1.1/411.541.98540.21838.4511810.688Z1.1/

13、211.548.05446.28744.52018.510.688Z211.560.09258.32556.5581911.074公制螺纹基本尺寸及公差(牙形角60) M螺纹代号基本直径内 螺 纹外螺纹大 径中 径小 径公 差 等 级公差等级6H7H6g中径公差小径公差中径公差小径公差中径公差大径公差M10X1109.3508.917+0.1500+0.2360+0.1900+0.3000-0.026-0.138-0.026-0.206M12X11211.35010.917+0.1600+0.2360+0.2000+0.3000-0.026-0.144-0.026-0.206M14X11413

14、.35012.917+0.1600+0.2360+0.2000+0.3000-0.026-0.144-0.026-0.206M12X1.251211.18810.647+0.1800+0.2650+0.2240+0.3350-0.028-0.160-0.028-0.240M14X1.251413.18812.647+0.1800+0.2650+0.2240+0.3350-0.028-0.160-0.028-0.240M12X1.51211.02610.376+0.1900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M14X1.51413.02612

15、.376+0.1900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M16X1.51615.02614.376+0.1900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M18X1.51817.02616.373+0.1900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M20X1.52019.02618.376+0.1900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M22X1.52221.02620.376+0.1

16、900+0.3000+0.2360+0.3750-0.032-0.172-0.032-0.268M24X1.52423.02622.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M26X1.52625.02624.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M27X1.52726.02625.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M30X1.53029.02628.376+0.2000+0.30

17、00+0.2500+0.3750-0.032-0.182-0.032-0.268M33X1.53332.02631.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M36X1.53635.02634.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M39X1.53938.02637.376+0.2000+0.3000+0.2500+0.3750-0.032-0.182-0.032-0.268M42X1.54241.02640.376+0.2000+0.3000+0.250

18、0+0.3750-0.032-0.182-0.032-0.268M27X22725.70124.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M30X23028.70127.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M33X23331.70130.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M36X23634.70133.835+0.2240+0.3750+0.2800+0.4750-0.038-0

19、.208-0.038-0.318M39X23937.70136.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M42X24240.70139.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M45X24543.70142.835+0.2240+0.3750+0.2800+0.4750-0.038-0.208-0.038-0.318M52X25250.70149.835+0.2360+0.3750+0.3000+0.4750-0.038-0.218-0.038-0.318

20、M60X26058.70157.835+0.2360+0.3750+0.3000+0.4750-0.038-0.218-0.038-0.318M64X26462.70161.835+0.2360+0.3750+0.3000+0.4750-0.038-0.218-0.038-0.318M72X27270.70169.835+0.2360+0.3750+0.3000+0.4750-0.038-0.218-0.038-0.31855圆锥管螺纹基本尺寸对照表最新下载-汇兴达55圆锥管螺纹基本尺寸对照表最新下载-汇兴达55圆锥管螺纹(BSPT)螺纹代号基本尺寸英寸大径mmd=D螺距mmp每英寸牙数tpi

21、中径mmd2=D2小径外螺纹d3牙型高度H1圆弧尺寸r底孔尺寸mmR 1/161/167.7230.907287.1426.5610.5810.1256.4R 1/81/89.7280.907289.1478.5660.5810.1258.4R 1/41/413.1571.3371912.30111.4450.8560.18411.2R 3/83/816.6621.3371915.80614.9500.8560.18414.75R 1/21/220.9551.8141419.79318.6311.1620.24918.25R 3/43/426.4411.8141425.27924.1171.1

22、620.24923.75R 1133.2492.3091131.7730.2911.4790.31730R 1 1/41 1/441.9102.3091140.43138.9521.4790.31738.5R 1 1/21 1/247.8032.3091146.32444.8451.4790.31744.5R 2259.6142.3091158.13556.6561.4790.31756R 2 1/22 1/275.1842.3091173.70572.2261.4790.31771R 3387.8842.3091186.40584.9261.4790.31785.5R 44113.0302.

23、30911111.551110.0721.4790.317110.5R 55138.4302.30911136.951135.4721.4790.317136R 66163.8302.30911162.351160.8721.4790.317161.5聊城市鑫茂祥管业有限公司专业经营钢管规格：5mm*1mm1020mm*200mm合金钢管、外径22mm-127mm冷轧无缝钢管、外径127mm-600mm，壁厚16mm-100mm，外径精度0.5%,壁厚精度5%热轧中厚壁无缝钢管、16Mn外径4001600mm、壁厚2060mm的大口径厚壁卷管，可定尺到16米及各种规格的无缝方管、异型无缝钢管等.常备钢管种类有:构造用无缝钢管、流体用无缝钢管、液压无缝钢管、电力用无缝钢管、石油输送用无缝钢管、化肥设备用无缝钢管、煤矿用无缝钢管、不锈钢无缝钢管、化工用无缝钢管、纺织