螺紋基本尺寸對(duì)照表精編版

1、英制管螺紋基本尺寸及公差（牙形角55o）BSPP螺紋代號(hào)G1/8× 28G1/4× 19G3/8× 19G1/2× 14G5/8× 14G3/4× 14G1× 11G1.1/4× 11G1.1/2× 11G2× 11G2.1/2 ” X11G3” X11G3.1/2 ” X11基本直徑內(nèi)螺紋外螺紋A 級(jí)B 級(jí)大徑中徑小徑中徑公差小徑公差中徑公差大徑公差中徑公差大徑公差9.7289.1478.566+0.170+0.28200000-0.107-0.214-0.214-0.21413.15712.

2、30111.445+0.125+0.445-0.125-0.250-0.2500-0.25016.66215.80614.950+0.125+0.445000000-0.125-0.250-0.250-0.25020.95519.79318.631+0.142+0.541000000-0.142-0.284-0.284-0.28422.91121.74920.587+0.142+0.541000000-0.142-0.284-0.284-0.28426.44125.27924.117+0.142+0.541000000-0.142-0.284-0.284-0.28433.24931.77030

3、.291+0.180+0.640000000-0.180-0.360-0.360-0.36041.91040.43138.952+0.180+0.640000000-0.180-0.360-0.360-0.36047.80346.32444.854+0.180+0.640000000-0.180-0.360-0.360-0.36059.61458.13556.656+0.180+0.640000000-0.180-0.360-0.360-0.36075.18473.70572.226+0.217+0.640000000-0.217-0.434-0.434-0.43487.88486.40584

4、.926+0.217+0.640000000-0.217-0.434-0.434-0.434100.33098.85197.372+0.217+0.640000000-0.217-0.434-0.434-0.434英制錐管螺紋基本尺寸及公差（牙形角55o）BSPT基面上的直徑基準(zhǔn)長(zhǎng)度有效螺紋長(zhǎng)度圓錐內(nèi)螺紋基面軸向螺紋代號(hào)大徑中徑小徑基本最大最小基本最大最小位移偏差（ ± mm）R1/8×289.7289.1478.5664.04.93.16.57.45.61.1R1/4×1913.15712.30111.4456.07.34.79.711.08.41.7R3/8&

5、#215; 1916.66215.80614.9506.47.75.110.111.48.81.7R1/2×1420.95519.79318.6318.210.06.413.215.011.42.3R3/4×1426.44125.27924.1179.511.37.714.516.312.72.3R1× 1133.24931.77030.29110.412.78.116.819.114.52.9R1.1/4× 1141.91040.43138.95212.715.010.419.121.416.82.9R1.1/2× 1147.80346.32

6、444.84512.715.010.419.121.416.82.9R2× 1159.61458.13556.65615.918.213.623.425.721.12.9R2.1/2 ” X1175.18473.70572.22617.521.014.026.730.223.23.5R3” X1187.88486.40584.92620.624.117.129.833.326.33.51R3.1/2 ” 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60o）UN(F)螺紋代號(hào)7/16× 20

7、UNF 1/2× 20UNF 9/16× 18UNF 3/4× 16UNF 7/8× 14UNF 1-1/16× 12UN 1-5/16× 12UN 1-5/8 × 12UN 1-7/8 × 12UN 2-1/2 × 12UN9/16× 18UNF11/16× 16UN13/16× 16UN1× 14UNF1-3/16× 12UN1-7/16× 12UN1-11/16× 12UN2× 12UN5/8× 18UNF 1

8、-1/16× 14UN外螺紋內(nèi)螺紋公差等級(jí)公差等級(jí)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11.07910.87410.25410.1479.5689.72810.03310.28710.42411.11312.66712.46111.84111.73211.15611.32811.60811.87512.01712.714.25214.03113.33513.22112.57312.75113.08113.37113.5214.28819.01218.77317.98117.85417.1217.32317.67818.01918.18419.0

9、522.18421.92321.00620.86920.02520.26920.67621.04621.22422.22526.94426.65525.5725.42524.42524.68925.14625.61325.80126.98833.29433.00531.9231.77330.77531.03931.49631.96332.15433.33841.22940.9439.88539.70538.7138.98939.44639.90140.09441.27547.57947.2946.20546.05345.0645.33945.79646.25146.44947.62563.45

10、263.16262.07861.9260.93261.21461.67162.12662.33263.5ORFS 螺紋14.25214.03113.33513.22112.57312.75113.08113.37113.5214.28817.42717.18816.39616.27415.53515.74816.10416.43116.58917.46320.59920.36119.56819.44418.70718.92319.27919.60619.76620.63825.35725.09524.17824.03623.19523.44423.82524.22124.40725.430.1

11、1929.8328.74528.59827.627.86428.32128.78828.97930.16336.46736.17735.09334.94333.94734.21434.67135.13835.33136.51342.81742.52741.44341.2940.29740.56441.02141.48841.68642.86350.75450.46549.3849.22548.23548.51448.97149.42649.62750.8SAE 螺紋15.83915.61814.92314.80314.16114.35114.68114.95815.1115.87526.947

12、26.68325.74325.60824.7424.96825.37525.78325.96126.987其它美制螺紋9/16× 16UN14.25214.01313.22113.10112.3612.57312.92913.25613.41114.2887/8× 12UN22.18221.89220.80820.66819.66219.93920.39620.85121.03422.2252-1/4 × 12UN57.10456.81555.7355.57554.58554.86455.32155.77655.97657.15注： UNC 粗牙螺紋系列，UNF

13、細(xì)牙螺紋系列，UNEF 超細(xì)牙螺紋系列，UN 不變螺距系列布錐管螺紋基本尺寸及公差 (牙形角 60o)NPT螺紋代號(hào)基面上的直徑螺紋長(zhǎng)度大徑中徑小徑有效長(zhǎng)度管端至基面長(zhǎng)Z1/8 × 2710.2729.5198.76674.572Z1/4 ×1813.57212.44311.3149.55.080Z3/8 ×1817.05515.92614.79710.56.096Z1/2 ×1421.22319.77218.32113.58.028Z3/4 × 1426.56825.11723.666148.611Z1 × 11.533.22831

14、.46129.69417.510.160Z1.1/4×11.541.98540.21838.4511810.6882Z1.1/2× 11.548.05446.28744.52018.510.688Z2 × 11.560.09258.32556.5581911.074公制螺紋基本尺寸及公差(牙形角 60o)M基本直徑螺紋代號(hào)大徑中徑小徑M10X1109.3508.917M12X11211.35010.917M14X11413.35012.917M12X1.251211.18810.647M14X1.251413.18812.647M12X1.51211.02610.

15、376M14X1.51413.02612.376M16X1.51615.02614.376M18X1.51817.02616.373M20X1.52019.02618.376M22X1.52221.02620.376M24X1.52423.02622.376M26X1.52625.02624.376M27X1.52726.02625.376M30X1.53029.02628.376M33X1.53332.02631.376M36X1.53635.02634.376M39X1.53938.02637.376M42X1.54241.02640.376M27X22725.70124.835M30X2

16、3028.70127.835M33X23331.70130.835M36X23634.70133.835M39X23937.70136.835M42X24240.70139.835M45X24543.70142.835M52X25250.70149.835M60X26058.70157.835M64X26462.70161.835M72X27270.70169.835內(nèi) 螺 紋外螺紋公差等級(jí)公差等級(jí)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+0.150+0.236+0.190+0.300-0.026-0.0260000-0.138-0.206+0.160+0.236+0.20

17、0+0.300-0.026-0.0260000-0.144-0.206+0.160+0.236+0.200+0.300-0.026-0.0260000-0.144-0.206+0.180+0.265+0.224+0.335-0.028-0.0280000-0.160-0.240+0.180+0.265+0.224+0.335-0.028-0.0280000-0.160-0.240+0.190+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.190+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.19

18、0+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.190+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.190+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.190+0.300+0.236+0.375-0.032-0.0320000-0.172-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.18

19、2-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.0320000-0.182-0.268+0.200+0.300+0.250+0.375-0.032-0.

20、0320000-0.182-0.268+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.

21、475-0.038-0.0380000-0.208-0.318+0.224+0.375+0.280+0.475-0.038-0.0380000-0.208-0.318+0.236+0.375+0.300+0.475-0.038-0.0380000-0.218-0.318+0.236+0.375+0.300+0.475-0.038-0.0380000-0.218-0.318+0.236+0.375+0.300+0.475-0.038-0.0380000-0.218-0.318+0.236+0.375+0.300+0.475-0.038-0.0380000-0.218-0.318355 °

22、;圓錐管螺紋基本尺寸對(duì)照表最新下載-匯興達(dá)55 °圓錐管螺紋基本尺寸對(duì)照表最新下載-匯興達(dá)55 °圓錐管螺紋 (BSPT)螺紋基本尺寸大徑螺距每英寸中小徑徑外mm牙型高度代號(hào)R1/16R1/8R1/4R3/8mm英寸d=D1/17.76"231/89.7"281/413."1573/816."662mmp0.9070.9071.3371.337牙數(shù)tpi28281919螺d2H1紋=Dd236.7.15420.581618.9.150.581476611.12.40.8563014514.15.90.856806504R18.11/2

23、20.1.819.1.162146/"95514793231R24.33/426.1.825.1.162141/"441142794173R33.2.30.31.1"2491121.4791097791R3112.38.41.40.11/4091191.479910431/"542R4112.34.47.46.11/2091181.479803324/"4255R59.2.36.58.2"6141161.47920913556R75.2.373.21171.4792184097051/22.51"2/22684.R87.2.

24、386.1.4793"8841193094052611131111R0.2.34".0311.551.4794091007211381363R5.2.35".4311.951.4795091407211631626R0.2.36".8311.351.47960918072聊城市鑫茂祥管業(yè)有限公司專業(yè)經(jīng)營(yíng)鋼管規(guī)格：5mm*1mm 1020mm*200mm合金鋼管、外徑22mm-127mm冷軋無(wú)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(wú)縫鋼管、 16Mn外徑 400

25、1600mm、壁厚 20 60mm的大口徑厚壁卷管，可定尺到16米及各種規(guī)格的無(wú)縫方管、異型無(wú)縫鋼管等 . 常備鋼管種類有: 構(gòu)造用無(wú)縫鋼管、流體用無(wú)縫鋼管、液壓無(wú)縫鋼管、電力用無(wú)縫鋼管、石油輸送用無(wú)縫鋼管、化肥設(shè)備用無(wú)縫鋼管、煤礦用無(wú)縫鋼管、不銹鋼無(wú)縫鋼管、化工用無(wú)縫鋼管、紡織機(jī)械用無(wú)縫鋼管、汽車；水利用無(wú)縫鋼管，精密無(wú)縫鋼管、光亮無(wú)縫鋼管、軍工醫(yī)療用無(wú)縫鋼管、管道用無(wú)縫鋼管、支柱用無(wú)縫鋼管、合金無(wú)縫管、高壓無(wú)縫管、大口徑直縫焊管等。適用于工程、煤礦、紡織、電力、鍋爐、機(jī)械、軍工等各個(gè)領(lǐng)域。公司以良好的信用、優(yōu)質(zhì)的產(chǎn)品、雄厚的實(shí)力、低廉的價(jià)錢(qián)享譽(yù)全國(guó)30 多個(gè)省、市、自治區(qū)、直轄市及國(guó)外，產(chǎn)

26、品深得用戶依賴。6公司常年銷售成都鋼鐵集團(tuán)、冶鋼集團(tuán)、包頭鋼廠、寶鋼集團(tuán)、鞍鋼集團(tuán)、天津大無(wú)縫、西寧特鋼廠、無(wú)錫鋼廠、衡陽(yáng)鋼廠等各大鋼廠生產(chǎn)的各種無(wú)縫鋼管及合金管。主營(yíng)材質(zhì)： 20#、35#、45# 、20G 、20A 、40Mn2 、45Mn2 、27SiMn、40MnB 、 20MnVB、 20Cr 、 30Cr 、35Cr、40Cr、 45Cr、 50Cr、 38CrSi、12CrMo、20CrMo、 35CrMo、42CrMo、12CrMoV、12Cr1MoV、38CrMoAL、50CrV、20CrMnSi 、30CrMnSi 、35CrMnSi、 20CrMnTi、30CrMnTi、

27、12CrNi2、 12CrNi3、12Cr2Ni4、40CrNiMoA、45CrNiMoVA、20G 、20MnG 、25MnG 、12CrMoG、15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、 12Cr3MoVSiTiB等實(shí)行標(biāo)準(zhǔn)： GB/T8162-99構(gòu)造管、 GB/T8163-99流體管、 GB/T3087-99中低壓鍋爐管、GB/T5310-95高壓鍋爐管、 GB/T6479-2000化肥專用管、 27SiMn液壓支架管、高壓合金管、GB/T9948-85石油裂化管GB9948-88、地質(zhì)鉆探用管YB235-70、汽車半軸套管YB/T5035-96。

28、現(xiàn)我公司有大量合金管、高壓管、無(wú)縫方管、異型無(wú)縫鋼管現(xiàn)貨，將以優(yōu)惠的價(jià)錢(qián)，批零兼營(yíng)的方式，為您提供快捷優(yōu)質(zhì)的服務(wù)，歡迎新老客戶前來(lái)洽談、電議。管螺紋的基本尺寸表(2010-10-25 15:57:35)轉(zhuǎn)載 標(biāo)簽：雜談表（1）螺紋基本尺寸G1/2、ZG1/2( 單位 :mm)尺寸代每螺距 p牙型圓弧半基面上的基本直徑基準(zhǔn)有效號(hào)25.4mm高度 h 徑 r 大徑（基 中徑小徑距離螺紋類的牙準(zhǔn)直徑） d2=D2d1=D1長(zhǎng)度數(shù) nd=D1/16280.9070.581 0.1257.7237.1426.5614.06.51/8280.9070.581 0.1259.7289.1478.5664.0

29、6.51/4191.3370.586 0.18413.15712.30111.4456.09.73/8191.3370.586 0.18416.66215.80614.9506.410.11/2141.8141.162 0.24920.95519.79318.6318.213.23/4141.8141.162 0.24926.44125.27924.1179.514.51112.3091.479 0.31733.24931.77030.29110.416.81.1/4112.3091.479 0.31741.91040.43138.95212.719.11.1/2112.3091.479 0.

30、31747.80346.32444.84512.719.12112.3091.479 0.31759.61458.13556.65615.923.42.1/2112.3091.479 0.31775.18473.70572.22617.526.73112.3091.479 0.31787.88486.40584.92620.629.83.1/2112.3091.479 0.317100.33098.85197.37222.231.44112.3091.479 0.317113.030111.551110.07225.435.85112.3091.479 0.317138.430136.9511

31、35.47228.640.16112.3091.479 0.317163.830162.351160.87228.640.17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 每號(hào)25.4mm類的牙基面上的基本直徑基準(zhǔn)距離大徑（基中徑小徑準(zhǔn)直徑）d2=D2d1=D1數(shù) nd=D1/16277.8957.1426.3894.0641/82710.2429.4898.7364.1021/41813.61612.48711.3585.7863/81817.05515.92614.7976.0961/21421.22319.77218.3218.

32、1283/41426.56825.11723.6668.611111.533.22831.46129.69410.1601.1/411.541.98540.21838.45110.6681.1/211.548.05446.28744.52010.668211.560.09258.32556.55811.0742.1/2872.69970.15967.61917.3233888.60886.06883.52819.4563.1/28101.31698.77696.23620.85348113.973111.433108.89321.438螺紋標(biāo)準(zhǔn)的一種，按外形分圓柱、圓錐兩種；按牙型角分55&#

33、176;、 60°兩種。螺紋中的1/4 、 1/2 、1/8標(biāo)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(guó)外常用英制螺紋的代號(hào)、名稱和標(biāo)準(zhǔn)號(hào)：標(biāo)準(zhǔn)惠氏粗牙系列，一般用途圓柱螺紋標(biāo)準(zhǔn)惠氏細(xì)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(biāo)準(zhǔn)螺紋以上為英國(guó)標(biāo)準(zhǔn)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(xì)牙系列的統(tǒng)一螺紋UNEF 超細(xì)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

34、螺紋8UNRF 圓弧牙底細(xì)牙系列統(tǒng)一螺紋UNREF 圓弧牙底超細(xì)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(guó)標(biāo)準(zhǔn)ANSIB1.1 標(biāo)準(zhǔn)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(méi)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(jī)械連接用直管螺紋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(guó)標(biāo)準(zhǔn) ANSIB1.20.1牙型角為 60°的英制管螺紋NPTF干密封標(biāo)準(zhǔn)型錐管螺紋美國(guó)標(biāo)準(zhǔn) ANSIB1.20.3型PTF-SAE SH

35、ORT 干密封短型錐管螺紋美國(guó)標(biāo)準(zhǔn) ANSIB1.20.3型NPSF 干密封標(biāo)準(zhǔn)型燃油用直管內(nèi)螺紋美國(guó)標(biāo)準(zhǔn) ANSIB1.20.3型NPS1干密封標(biāo)準(zhǔn)型一般用直管內(nèi)螺紋美國(guó)標(biāo)準(zhǔn) ANSIB1.20.3型ACME一般用途的梯形螺紋美國(guó)標(biāo)準(zhǔn) ANSIB1.5 牙型角為 29°的英制傳動(dòng)螺紋尺寸和公差使用與標(biāo)準(zhǔn)系列相同的公式計(jì)算的標(biāo)準(zhǔn)系列之外的所有直徑與螺距組合。我國(guó)的 60°圓錐管螺紋 GB/T12716-1991 與之等效。ACME螺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(guó)標(biāo)準(zhǔn) 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(lái)

36、表示，如：每英寸11 牙，則螺距 25.4/11 2.309mm螺紋如何區(qū)分英制和公制？默認(rèn)分類2009-08-24 22:03:14閱讀 1281評(píng)論 0字號(hào)：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(xiě)，屬於美國(guó)標(biāo)準(zhǔn)的60度錐管螺紋，用於北美地區(qū)國(guó)家標(biāo)準(zhǔn)可查閱GB/T12716-1991PT是PipeThread的縮寫(xiě)，是55度密封圓錐管螺紋，屬惠氏螺紋家族，多用於歐洲及英聯(lián)邦國(guó)家常用於水及煤氣管行業(yè)，錐度規(guī)定為1:16 國(guó)家標(biāo)準(zhǔn)可查閱GB/T7306-2000G是55度非螺紋密

37、封管螺紋，屬惠氏螺紋家族標(biāo)記為G代表圓柱螺紋國(guó)家標(biāo)準(zhǔn)可查閱GB/T7307-2001另外螺紋中的1/4 、 1/2 、 1/8標(biāo)記是指螺紋尺寸的直徑，單位是英吋行內(nèi)人通常用分來(lái)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(guó)標(biāo)標(biāo)注為Rc公制螺紋用螺距來(lái)表示，美英制螺紋用每英寸內(nèi)的螺紋牙數(shù)來(lái)表示，這是它們最大的區(qū)別，9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

38、英制螺紋用英制單位。管螺紋主要用來(lái)進(jìn)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(biāo)準(zhǔn)規(guī)格表寸大徑螺距每英寸牙數(shù)中徑小徑牙型高 底孔直徑牙型代號(hào) mmmmmm外螺紋WwtpiH1mmd=Dpd2=D2d31/16"BSW1.5870.423601.3151.0500.2701.153/32"BSW2.3810.529482.0411.7030.3381.901/8"BSW3.1750.635402.7682.3620.4062.5

39、05/32"BSW3.9690.793323.4592.9520.5073.203/16"BSW4.7621.058244.0843.4070.6773.707/32"BSW5.5561.058244.8784.2010.6774.501/4"BSW6.3501.270205.5374.7240.8135.105/16"BSW7.9381.411187.0346.1310.9046.503/8"BSW9.5251.588168.5097.4921.0177.907/16"BSW11.1131.814149.9518.7891.1629.201/2"BSW12.7002.1171211