各國標準 螺紋基本尺寸對照表

1、精選英制管螺紋基本尺寸及公差（牙形角55） BSPP螺紋代號基本直徑內(nèi)螺紋外螺紋大徑中徑小徑中徑公差小徑公差A(yù)級B級中徑公差大徑公差中徑公差大徑公差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+0.44500-0.1250-0.2500-0.2500-0.250G1/21420.95519.79318.631+0.1420+0.541

2、00-0.1420-0.2840-0.2840-0.284G5/81422.91121.74920.587+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+0.64000-0.1800-0.3600-0.3600-0.360G1.1/21

3、147.80346.32444.854+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”X11100.33098.85197.372+0.2170+0.

4、64000-0.2170-0.4340-0.4340-0.434英制錐管螺紋基本尺寸及公差（牙形角55） BSPT螺紋代號基面上的直徑基準長度有效螺紋長度圓錐內(nèi)螺紋基面軸向位移偏差（mm）大徑中徑小徑基本最大最小基本最大最小R1/8289.7289.1478.5664.04.93.16.57.45.61.1R1/41913.15712.30111.4456.07.34.79.711.08.41.7R3/81916.66215.80614.9506.47.75.110.111.48.81.7R1/21420.95519.79318.6318.210.06.413.215.011.42.3R3/4

5、1426.44125.27924.1179.511.37.714.516.312.72.3R11133.24931.77030.29110.412.78.116.819.114.52.9R1.1/41141.91040.43138.95212.715.010.419.121.416.82.9R1.1/21147.80346.32444.84512.715.010.419.121.416.82.9R21159.61458.13556.65615.918.213.623.425.721.12.9R2.1/2”X1175.18473.70572.22617.521.014.026.730.223.2

6、3.5R3”X1187.88486.40584.92620.624.117.129.833.326.33.5R3.1/2”X11100.33098.85197.37222.225.718.731.434.927.93.5美制管螺紋基本尺寸及公差（牙形角60） UN(F)螺紋代號外螺紋內(nèi)螺紋公差等級公差等級2A2B大徑中徑小徑小徑中徑大徑最大最小最大最小最小最大最小最大JIC螺紋7/1620UNF11.07910.87410.25410.1479.5689.72810.03310.28710.42411.1131/220UNF12.66712.46111.84111.73211.15611.32

7、811.60811.87512.01712.79/1618UNF14.25214.03113.33513.22112.57312.75113.08113.37113.5214.2883/416UNF19.01218.77317.98117.85417.1217.32317.67818.01918.18419.057/814UNF22.18421.92321.00620.86920.02520.26920.67621.04621.22422.2251-1/1612UN26.94426.65525.5725.42524.42524.68925.14625.61325.80126.9881-5/16

8、12UN33.29433.00531.9231.77330.77531.03931.49631.96332.15433.3381-5/812UN41.22940.9439.88539.70538.7138.98939.44639.90140.09441.2751-7/812UN47.57947.2946.20546.05345.0645.33945.79646.25146.44947.6252-1/212UN63.45263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS螺紋9/1618UNF14.25214.03113.33513.2

9、2112.57312.75113.08113.37113.5214.28811/1616UN17.42717.18816.39616.27415.53515.74816.10416.43116.58917.46313/1616UN20.59920.36119.56819.44418.70718.92319.27919.60619.76620.638114UNF25.35725.09524.17824.03623.19523.44423.82524.22124.40725.41-3/1612UN30.11929.8328.74528.59827.627.86428.32128.78828.979

10、30.1631-7/1612UN36.46736.17735.09334.94333.94734.21434.67135.13835.33136.5131-11/1612UN42.81742.52741.44341.2940.29740.56441.02141.48841.68642.863212UN50.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE螺紋5/818UNF15.83915.61814.92314.80314.16114.35114.68114.95815.1115.8751-1/1614UN26.94726.6

11、8325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺紋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粗牙螺紋系列，UNF細牙螺紋系列， UNEF超細牙螺紋系列， UN不變螺距系列

12、布錐管螺紋基本尺寸及公差(牙形角60) NPT螺紋代號基面上的直徑螺紋長度大徑中徑小徑有效長度管端至基面長Z1/82710.2729.5198.76674.572Z1/41813.57212.44311.3149.55.080Z3/81817.05515.92614.79710.56.096Z1/21421.22319.77218.32113.58.028Z3/41426.56825.11723.666148.611Z111.533.22831.46129.69417.510.160Z1.1/411.541.98540.21838.4511810.688Z1.1/211.548.05446.2

13、8744.52018.510.688Z211.560.09258.32556.5581911.074公制螺紋基本尺寸及公差(牙形角60) M螺紋代號基本直徑內(nèi) 螺 紋外螺紋大 徑中 徑小 徑公 差 等 級公差等級6H7H6g中徑公差小徑公差中徑公差小徑公差中徑公差大徑公差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+0.3000-0.026-0.144-0.026-0.206M14X11413.35012.917+0.16

14、00+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+0.3750-0.032-0.172-0.032-0.268M14X1.51413.02612.376+0.1900+0.3

15、000+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+0.1900+0.3000+0.23

16、60+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+0.3000+0.2500+0.375

17、0-0.032-0.182-0.032-0.268M33X1.53332.02631.376+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+0.2500+0.3750-0.032-

18、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+0.4750-0.038-0.208-0.038-0.31

19、8M39X23937.70136.835+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+0.4750-0.038-0.218-0.038-0.318M60X26058.70157

20、.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圓錐管螺紋基本尺寸對照表最新下載-匯興達55圓錐管螺紋基本尺寸對照表最新下載-匯興達55圓錐管螺紋(BSPT)螺紋代號基本尺寸英寸大徑mmd=D螺距mmp每英寸牙數(shù)tpi中徑mmd2=D2小徑外螺紋d

21、3牙型高度H1圓弧尺寸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 3/43/426.4411.8141425.27924.1171.1620.24923.75R 1

22、133.2492.3091131.7730.2911.4790.31730R 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 44113.0302.30911111.551110

23、.0721.4790.317110.5R 55138.4302.30911136.951135.4721.4790.317136R 66163.8302.30911162.351160.8721.4790.317161.5聊城市鑫茂祥管業(yè)有限公司專業(yè)經(jīng)營鋼管規(guī)格：5mm*1mm1020mm*200mm合金鋼管、外徑22mm-127mm冷軋無縫鋼管、外徑127mm-600mm，壁厚16mm-100mm，外徑精度0.5%,壁厚精度5%熱軋中厚壁無縫鋼管、16Mn外徑4001600mm、壁厚2060mm的大口徑厚壁卷管，可定尺到16米及各種規(guī)格的無縫方管、異型無縫鋼管等.常備鋼管種類有:構(gòu)造用無縫鋼

24、管、流體用無縫鋼管、液壓無縫鋼管、電力用無縫鋼管、石油輸送用無縫鋼管、化肥設(shè)備用無縫鋼管、煤礦用無縫鋼管、不銹鋼無縫鋼管、化工用無縫鋼管、紡織機械用無縫鋼管、汽車；水利用無縫鋼管，精密無縫鋼管、光亮無縫鋼管、軍工醫(yī)療用無縫鋼管、管道用無縫鋼管、支柱用無縫鋼管、合金無縫管、高壓無縫管、大口徑直縫焊管等。適用于工程、煤礦 、紡織、電力、鍋爐、機械、軍工等各個領(lǐng)域。公司以良好的信用、優(yōu)質(zhì)的產(chǎn)品、雄厚的實力、低廉的價錢享譽全國30多個省、市、自治區(qū)、直轄市及國外，產(chǎn)品深得用戶依賴。 管螺紋的基本尺寸表(2010-10-25 15:57:35) 轉(zhuǎn)載標簽： 雜談表（1）螺紋基本尺寸G1/2 、ZG1/2

25、 (單位:mm)尺寸代號每25.4mm類的牙數(shù)n螺距p牙型高度h圓弧半徑r基面上的基本直徑基準距離有效螺紋長度大徑（基準直徑）d=D中徑d2=D2小徑d1=D11/16280.9070.5810.1257.7237.1426.5614.06.51/8280.9070.5810.1259.7289.1478.5664.06.51/4191.3370.5860.18413.15712.30111.4456.09.73/8191.3370.5860.18416.66215.80614.9506.410.11/2141.8141.1620.24920.95519.79318.6318.213.23/4

26、141.8141.1620.24926.44125.27924.1179.514.51112.3091.4790.31733.24931.77030.29110.416.81.1/4112.3091.4790.31741.91040.43138.95212.719.11.1/2112.3091.4790.31747.80346.32444.84512.719.12112.3091.4790.31759.61458.13556.65615.923.42.1/2112.3091.4790.31775.18473.70572.22617.526.73112.3091.4790.31787.88486

27、.40584.92620.629.83.1/2112.3091.4790.317100.33098.85197.37222.231.44112.3091.4790.317113.030111.551110.07225.435.85112.3091.4790.317138.430136.951135.47228.640.16112.3091.4790.317163.830162.351160.87228.640.1錐管螺紋的基本尺寸表（3-28）1/2PT 、1/2NPT表（2）螺紋基本尺寸 (單位:mm)尺寸代號每25.4mm類的牙數(shù)n基面上的基本直徑基準距離大徑（基準直徑）d=D中徑d2=D

28、2小徑d1=D11/16277.8957.1426.3894.0641/82710.2429.4898.7364.1021/41813.61612.48711.3585.7863/81817.05515.92614.7976.0961/21421.22319.77218.3218.1283/41426.56825.11723.6668.611111.533.22831.46129.69410.1601.1/411.541.98540.21838.45110.6681.1/211.548.05446.28744.52010.668211.560.09258.32556.55811.0742.1/

29、2872.69970.15967.61917.3233888.60886.06883.52819.4563.1/28101.31698.77696.23620.85348113.973111.433108.89321.438螺紋標準的一種，按外形分圓柱、圓錐兩種；按牙型角分55、60兩種。螺紋中的1/4、1/2、1/8標記是指螺紋尺寸的直徑，單位是英寸。一吋等于8分，1/4吋就是2分，如此類推。國外常用英制螺紋的代號、名稱和標準號：B.S.W.標準惠氏粗牙系列，一般用途圓柱螺紋B.S.F.標準惠氏細牙系列，一般用途圓柱螺紋Whit.S附加的惠氏可選擇系列，一般用途圓柱螺紋Whit惠氏牙型的非標

30、準螺紋以上為英國標準BS84牙型角為55的英制螺紋UN恒定螺距系列的統(tǒng)一螺紋UNC粗牙系列的統(tǒng)一螺紋UNF細牙系列的統(tǒng)一螺紋UNEF超細牙系列的統(tǒng)一螺紋UNS特殊系列的統(tǒng)一螺紋UNR圓弧牙底恒定螺距系列的統(tǒng)一螺紋UNRC圓弧牙底粗牙系列統(tǒng)一螺紋UNRF圓弧牙底細牙系列統(tǒng)一螺紋UNREF圓弧牙底超細牙系列統(tǒng)一螺紋UNRS圓弧牙底特殊系列統(tǒng)一螺紋以上為美國標準ANSIB1.1標準牙型(牙底是平的或隨意倒圓的)的內(nèi)、外螺紋圓弧牙底的UNR、UNRC、UNRF、UNREF、NRS只用于外螺紋而沒有內(nèi)螺紋NPT一般用途的錐管螺紋NPSC管接頭用直管螺紋NPTR導(dǎo)桿連接用錐管螺紋NPSM機械連接用直管螺紋

31、NPSL鎖緊螺母用直管螺紋NPSH軟管連接用直管螺紋以上為美國標準ANSIB1.20.1牙型角為60的英制管螺紋NPTF干密封標準型錐管螺紋美國標準ANSIB1.20.3型PTF-SAESHORT干密封短型錐管螺紋美國標準ANSIB1.20.3型NPSF干密封標準型燃油用直管內(nèi)螺紋美國標準ANSIB1.20.3型NPS1干密封標準型一般用直管內(nèi)螺紋美國標準ANSIB1.20.3型ACME一般用途的梯形螺紋美國標準ANSIB1.5牙型角為29的英制傳動螺紋尺寸和公差使用與標準系列相同的公式計算的標準系列之外的所有直徑與螺距組合。我國的60圓錐管螺紋GB/T12716-1991與之等效。ACME螺

32、紋包括一般用途的和定心的兩種配合的梯形螺紋，其中一般用途者與我國標準GB/T5796-1986規(guī)定的梯形螺紋的性能相類同。螺距用每英寸的牙數(shù)來表示，如：每英寸11牙，則螺距25.4/112.309mm螺紋如何區(qū)分英制和公制？默認分類2009-08-2422:03:14閱讀1281評論0字號：大中小粗略判斷的話好像英制的比公職的牙距大（同規(guī)格的）NPT，PT，G都是管螺紋NPT是National(American)PipeThread的縮寫，屬於美國標準的60度錐管螺紋，用於北美地區(qū)國家標準可查閱GB/T12716-1991PT是PipeThread的縮寫，是55度密封圓錐管螺紋，屬惠氏螺紋家族

33、，多用於歐洲及英聯(lián)邦國家常用於水及煤氣管行業(yè)，錐度規(guī)定為1:16國家標準可查閱GB/T7306-2000G是55度非螺紋密封管螺紋，屬惠氏螺紋家族標記為G代表圓柱螺紋國家標準可查閱GB/T7307-2001另外螺紋中的1/4、1/2、1/8標記是指螺紋尺寸的直徑，單位是英吋行內(nèi)人通常用分來稱呼螺紋尺寸，一吋等於分，1/4吋就是分，如此類推G好像就是管螺紋的統(tǒng)稱(Guan)，55，60度的劃分屬于功能性的，俗稱管圓。即螺紋由一圓柱面加工而成。ZG俗稱管錐，即螺紋由一圓錐面加工而成，一般的水管接頭都是這樣的，老國標標注為Rc公制螺紋用螺距來表示，美英制螺紋用每英寸內(nèi)的螺紋牙數(shù)來表示，這是它們最大的

34、區(qū)別，公制螺紋是60度等邊牙型，英制螺紋是等腰55度牙型，美制螺紋60度。公制螺紋用公制單位，美英制螺紋用英制單位。管螺紋主要用來進行管道的連接，其內(nèi)外螺紋的配合緊密，有直管與錐管兩種。公稱直徑是指所連接的管道直徑，顯然螺紋大徑比公稱直徑大。1/4，1/2，1/8是英制螺紋的公稱直徑，單位是英寸。英制螺紋標準規(guī)格表寸Ww牙型代號大徑mmd=D螺距mmp每英寸牙數(shù)tpi中徑mmd2=D2小徑外螺紋d3牙型高H1底孔直徑mm1/16BSW1.5870.423601.3151.0500.2701.153/32BSW2.3810.529482.0411.7030.3381.901/8BSW3.1750

35、.635402.7682.3620.4062.505/32BSW3.9690.793323.4592.9520.5073.203/16BSW4.7621.058244.0843.4070.6773.707/32BSW5.5561.058244.8784.2010.6774.501/4BSW6.3501.270205.5374.7240.8135.105/16BSW7.9381.411187.0346.1310.9046.503/8BSW9.5251.588168.5097.4921.0177.907/16BSW11.1131.814149.9518.7891.1629.201/2BSW12.7

36、002.1171211.3459.9901.35510.405/8BSW15.8762.3091114.39712.9181.47913.403/4BSW19.0512.5401017.42415.7981.62716.257/8BSW22.2262.822920.41918.6111.80719.251BSW25.4003.175823.36821.3352.03322.0011/8BSW28.5763.629726.25323.9292.32424.5011/4BSW31.7513.629729.42827.1042.32427.2513/8BSW34.9264.233632.21529.

37、5052.71130.2511/2BSW38.1004.233635.39132.6802.71133.5015/8BSW41.2775.080538.02434.7713.25335.5013/4BSW44.4525.080541.19937.9463.25338.5017/8BSW47.6275.64541/244.01240.3983.61441.252BSW50.8025.64541/247.18743.5733.61444.5021/4BSW57.1526.350453.08649.0204.06650.0021/2BSW63.5026.350459.43655.3704.06656

38、.0023/4BSW69.8537.25731/265.20560.5584.64761.503BSW76.2037.25731/271.55666.9094.64768.0031/4BSW82.5537.81631/477.54872.5445.00573.7531/2BSW88.9037.81631/483.89978.8945.00580.0033/4BSW95.2548.467389.83284.4105.42285.504BSW101.6048.467396.18290.7605.42292.0041/4BSW107.9548.83527/8102.29796.6395.65798.

39、0041/2BSW114.3048.83527/8108.647102.9905.657104.2043/4BSW120.6659.23723/4114.740108.6255.915110.005BSW127.0059.23723/4121.090115.1765.915116.5051/4BSW133.3559.67725/8127.159120.9636.196122.5051/2BSW139.7059.67725/8133.509127.3136.196128.5053/4BSW146.05510.16021/2139.549133.0436.506134.506BSW152.4061

40、0.16021/2145.900139.3946.506141.00英制普通螺紋-細牙-BSF英制普通螺紋(惠氏螺紋)-細牙(BSW)名義尺寸BSF牙型代號大徑mmd=D螺距mmp每英寸牙數(shù)tpi中徑mmd2=D2小徑外螺紋d3牙型高H1底孔直徑mm3/16BSF4.7630.794324.2553.7470.5084.007/32BSF5.5560.907284.9754.3940.5814.601/4BSF6.3500.977265.7255.1000.6255.309/32BSF7.1420.977266.5185.8930.6256.105/16BSF7.9381.156227.1996.4590.7396.803/8BSF9.5251.27208.7127.8990.8138.307/16BSF11.1131.4111810.2099.304