各國(guó)標(biāo)準(zhǔn)螺紋基本尺寸對(duì)照表

1、英 制 管 螺 紋 基 本 尺 寸 及 公 差 （ 牙 形 角5 5 o ）b s p p螺紋代號(hào)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 級(jí)b 級(jí)中徑公差大徑公差中徑公差大徑公差g1/828 9.728 9.147 8.566 +0.170 +0.282 0 0 -0.107 0 -0.214 0 -0.214 0 -0.214 g1/419 13.157 12.301 11.445 +0.125 +0.445 -0.125 -0.250 -0.250 0-0.250 g3/819 16.662 15.806 14.950 +0.125 0 +0.445 0 0 -0.125 0

2、-0.250 0 -0.250 0 -0.250 g1/214 20.955 19.793 18.631 +0.142 0 +0.541 0 0 -0.142 0 -0.284 0 -0.284 0 -0.284 g5/814 22.911 21.749 20.587 +0.142 0 +0.541 0 0 -0.142 0 -0.284 0 -0.284 0 -0.284 g3/414 26.441 25.279 24.117 +0.142 0 +0.541 0 0 -0.142 0 -0.284 0 -0.284 0 -0.284 g111 33.249 31.770 30.291 +0.

3、180 0 +0.640 0 0 -0.180 0 -0.360 0 -0.360 0 -0.360 g1.1/411 41.910 40.431 38.952 +0.180 0 +0.640 0 0 -0.180 0 -0.360 0 -0.360 0 -0.360 g1.1/211 47.803 46.324 44.854 +0.180 0 +0.640 0 0 -0.180 0 -0.360 0 -0.360 0 -0.360 g211 59.614 58.135 56.656 +0.180 0 +0.640 0 0 -0.180 0 -0.360 0 -0.360 0 -0.360 g

4、2.1/2 ”x1175.184 73.705 72.226 +0.217 0 +0.640 0 0 -0.217 0 -0.434 0 -0.434 0 -0.434 g3”x1187.884 86.405 84.926 +0.217 0 +0.640 0 0 -0.217 0 -0.434 0 -0.434 0 -0.434 g3.1/2 ”x11100.330 98.851 97.372 +0.217 0 +0.640 0 0 -0.217 0 -0.434 0 -0.434 0 -0.434 英制錐管螺紋基本尺寸及公差（牙形角55o）bspt螺紋代號(hào)基面上的直徑基準(zhǔn)長(zhǎng)度有效螺紋長(zhǎng)度圓錐

5、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r1/828 9.728 9.147 8.566 4.0 4.9 3.1 6.5 7.4 5.6 1.1 r1/419 13.157 12.301 11.445 6.0 7.3 4.7 9.7 11.0 8.4 1.7 r3/819 16.662 15.806 14.950 6.4 7.7 5.1 10.1 11.4 8.8 1.7 r1/214 20.955 19.793 18.631 8.2 10.0 6.4 13.2 15.0 11.4 2.3 r3/414 26.441 25.279 24.117 9.5 11.3 7

6、.7 14.5 16.3 12.7 2.3 r111 33.249 31.770 30.291 10.4 12.7 8.1 16.8 19.1 14.5 2.9 r1.1/411 41.910 40.431 38.952 12.7 15.0 10.4 19.1 21.4 16.8 2.9 r1.1/211 47.803 46.324 44.845 12.7 15.0 10.4 19.1 21.4 16.8 2.9 r211 59.614 58.135 56.656 15.9 18.2 13.6 23.4 25.7 21.1 2.9 r2.1/2 ”x1175.184 73.705 72.226

7、 17.5 21.0 14.0 26.7 30.2 23.2 3.5 r3”x1187.884 86.405 84.926 20.6 24.1 17.1 29.8 33.3 26.3 3.5 r3.1/2 ”x11100.330 98.851 97.372 22.2 25.7 18.7 31.4 34.9 27.9 3.5 美制管螺紋基本尺寸及公差（牙形角60o）un(f)螺紋代號(hào)外螺紋內(nèi)螺紋公差等級(jí)公差等級(jí)2a 2b 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7/1620unf 11.079 10.874 10.254 10.147 9.568 9.728 10.0

8、33 10.287 10.424 11.113 1/220unf 12.667 12.461 11.841 11.732 11.156 11.328 11.608 11.875 12.017 12.7 9/1618unf 14.252 14.031 13.335 13.221 12.573 12.751 13.081 13.371 13.52 14.288 3/416unf 19.012 18.773 17.981 17.854 17.12 17.323 17.678 18.019 18.184 19.05 7/814unf 22.184 21.923 21.006 20.869 20.025

9、 20.269 20.676 21.046 21.224 22.225 1-1/1612un26.944 26.655 25.57 25.425 24.425 24.689 25.146 25.613 25.801 26.988 1-5/1612un 33.294 33.005 31.92 31.773 30.775 31.039 31.496 31.963 32.154 33.338 1-5/812un 41.229 40.94 39.885 39.705 38.71 38.989 39.446 39.901 40.094 41.275 1-7/812un 47.579 47.29 46.2

10、05 46.053 45.06 45.339 45.796 46.251 46.449 47.625 2-1/212un 63.452 63.162 62.078 61.92 60.932 61.214 61.671 62.126 62.332 63.5 orfs 螺紋9/1618unf 14.252 14.031 13.335 13.221 12.573 12.751 13.081 13.371 13.52 14.288 11/1616un 17.427 17.188 16.396 16.274 15.535 15.748 16.104 16.431 16.589 17.463 13/161

11、6un 20.599 20.361 19.568 19.444 18.707 18.923 19.279 19.606 19.766 20.638 114unf 25.357 25.095 24.178 24.036 23.195 23.444 23.825 24.221 24.407 25.4 1-3/1612un 30.119 29.83 28.745 28.598 27.6 27.864 28.321 28.788 28.979 30.163 1-7/1612un 36.467 36.177 35.093 34.943 33.947 34.214 34.671 35.138 35.331

12、 36.513 1-11/1612un 42.817 42.527 41.443 41.29 40.297 40.564 41.021 41.488 41.686 42.863 212un 50.754 50.465 49.38 49.225 48.235 48.514 48.971 49.426 49.627 50.8 sae 螺紋5/818unf 15.839 15.618 14.923 14.803 14.161 14.351 14.681 14.958 15.11 15.875 1-1/1614un 26.947 26.683 25.743 25.608 24.74 24.968 25

13、.375 25.783 25.961 26.987 其它美制螺紋9/1616un 14.252 14.013 13.221 13.101 12.36 12.573 12.929 13.256 13.411 14.288 7/812un 22.182 21.892 20.808 20.668 19.662 19.939 20.396 20.851 21.034 22.225 2-1/412un 57.104 56.815 55.73 55.575 54.585 54.864 55.321 55.776 55.976 57.15 注： unc 粗牙螺紋系列， unf 細(xì)牙螺紋系列，unef 超細(xì)牙

14、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)z1/827 10.272 9.519 8.766 7 4.572 z1/418 13.572 12.443 11.314 9.5 5.080 z3/818 17.055 15.926 14.797 10.5 6.096 z1/214 21.223 19.772 18.321 13.5 8.028 z3/414 26.568 25.117 23.666 14 8.611 z111.5 33.228 31.461 29.694 17.5 10.160 z1.1

15、/411.5 41.985 40.218 38.451 18 10.688 z1.1/211.5 48.054 46.287 44.520 18.5 10.688 z211.5 60.092 58.325 56.558 19 11.074 公制螺紋基本尺寸及公差(牙形角 60o) m螺紋代號(hào)基本直徑內(nèi) 螺 紋外螺紋大 徑中 徑小 徑公 差 等 級(jí)公差等級(jí)6h 7h 6g 中徑公差小徑公差中徑公差小徑公差中徑公差大徑公差m10x1 10 9.350 8.917 +0.150 0 +0.236 0 +0.190 0 +0.300 0 -0.026 -0.138 -0.026 -0.206 m12x

16、1 12 11.350 10.917 +0.160 0 +0.236 0 +0.200 0 +0.300 0 -0.026 -0.144 -0.026 -0.206 m14x1 14 13.350 12.917 +0.160 0 +0.236 0 +0.200 0 +0.300 0 -0.026 -0.144 -0.026 -0.206 m12x1.25 12 11.188 10.647 +0.180 0 +0.265 0 +0.224 0 +0.335 0 -0.028 -0.160 -0.028 -0.240 m14x1.25 14 13.188 12.647 +0.180 0 +0.26

17、5 0 +0.224 0 +0.335 0 -0.028 -0.160 -0.028 -0.240 m12x1.5 12 11.026 10.376 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.172 -0.032 -0.268 m14x1.5 14 13.026 12.376 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.172 -0.032 -0.268 m16x1.5 16 15.026 14.376 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.1

18、72 -0.032 -0.268 m18x1.5 18 17.026 16.373 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.172 -0.032 -0.268 m20x1.5 20 19.026 18.376 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.172 -0.032 -0.268 m22x1.5 22 21.026 20.376 +0.190 0 +0.300 0 +0.236 0 +0.375 0 -0.032 -0.172 -0.032 -0.268 m24x1.5 24 23.02

19、6 22.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m26x1.5 26 25.026 24.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m27x1.5 27 26.026 25.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m30x1.5 30 29.026 28.376 +0.200 0 +0.300 0 +0.250

20、 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m33x1.5 33 32.026 31.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m36x1.5 36 35.026 34.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m39x1.5 39 38.026 37.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032

21、-0.268 m42x1.5 42 41.026 40.376 +0.200 0 +0.300 0 +0.250 0 +0.375 0 -0.032 -0.182 -0.032 -0.268 m27x2 27 25.701 24.835 +0.224 0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.208 -0.038 -0.318 m30x2 30 28.701 27.835 +0.224 0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.208 -0.038 -0.318 m33x2 33 31.701 30.835 +0.224

22、0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.208 -0.038 -0.318 m36x2 36 34.701 33.835 +0.224 0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.208 -0.038 -0.318 m39x2 39 37.701 36.835 +0.224 +0.375 +0.280 +0.475 -0.038 -0.038 0 0 0 0 -0.208 -0.318 m42x2 42 40.701 39.835 +0.224 0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.

23、208 -0.038 -0.318 m45x2 45 43.701 42.835 +0.224 0 +0.375 0 +0.280 0 +0.475 0 -0.038 -0.208 -0.038 -0.318 m52x2 52 50.701 49.835 +0.236 0 +0.375 0 +0.300 0 +0.475 0 -0.038 -0.218 -0.038 -0.318 m60x2 60 58.701 57.835 +0.236 0 +0.375 0 +0.300 0 +0.475 0 -0.038 -0.218 -0.038 -0.318 m64x2 64 62.701 61.83

24、5 +0.236 0 +0.375 0 +0.300 0 +0.475 0 -0.038 -0.218 -0.038 -0.318 m72x2 72 70.701 69.835 +0.236 0 +0.375 0 +0.300 0 +0.475 0 -0.038 -0.218 -0.038 -0.318 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) 螺紋代號(hào)基本尺寸英寸大徑mm d=d 螺距mm p 每英寸牙數(shù)tpi 中徑mm d2=d2 小徑外螺紋d3 牙型高度h1 r 1/16 1/16 7.723 0.907

25、28 7.142 6.561 0.581 r 1/8 1/8 9.728 0.907 28 9.147 8.566 0.581 r 1/1/4 13.157 1.337 19 12.301 11.440.856 4 5 r 3/8 3/8 16.662 1.337 19 15.806 14.950 0.856 r 1/2 1/2 20.955 1.814 14 19.793 18.631 1.162 r 3/4 3/4 26.441 1.814 14 25.279 24.117 1.162 r 1 1 33.249 2.309 11 31.77 30.291 1.479 r 1 1/4 1 1

26、/4 41.910 2.309 11 40.431 38.952 1.479 r 1 1/2 1 1/2 47.803 2.309 11 46.324 44.845 1.479 r 2 2 59.614 2.309 11 58.135 56.656 1.479 r 2 1/2 2 1/2 75.184 2.309 11 73.705 72.226 1.479 r 3 3 87.884 2.309 11 86.405 84.926 1.479 r 4 4 113.030 2.309 11 111.551 110.072 1.479 r 5 5 138.430 2.309 11 136.951 1

27、35.472 1.479 r 6 6 163.830 2.309 11 162.351 160.871.479 2 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*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 400 1600mm、壁厚 20 60mm的大口徑厚壁卷管，可定尺到16 米及各種規(guī)格的無縫方管、異型無縫鋼管等.常備鋼管種類有:構(gòu)造用無縫鋼管、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、

28、煤礦用無縫鋼管、不銹鋼無縫鋼管、化工用無縫鋼管、紡織機(jī)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(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)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(biāo)簽：雜談表（1）螺紋基本尺寸g1/2 、zg1/2 ( 單位:mm) 尺寸代號(hào)每25.4mm類的牙數(shù) n 螺距 p 牙型高度 h 圓弧半徑 r

29、 基面上的基本直徑基準(zhǔn)距離有效螺紋長(zhǎng)度大徑（基準(zhǔn)直徑）d=d 中徑d2=d2 小徑d1=d1 1/16 28 0.907 0.581 0.125 7.723 7.142 6.561 4.0 6.5 1/8 28 0.907 0.581 0.125 9.728 9.147 8.566 4.0 6.5 1/4 19 1.337 0.586 0.184 13.157 12.301 11.445 6.0 9.7 3/8 19 1.337 0.586 0.184 16.662 15.806 14.950 6.4 10.1 1/2 14 1.814 1.162 0.249 20.955 19.793 18

30、.631 8.2 13.2 3/4 14 1.814 1.162 0.249 26.441 25.279 24.117 9.5 14.5 1 11 2.309 1.479 0.317 33.249 31.770 30.291 10.4 16.8 1.1/4 11 2.309 1.479 0.317 41.910 40.431 38.952 12.7 19.1 1.1/2 11 2.309 1.479 0.317 47.803 46.324 44.845 12.7 19.1 2 11 2.309 1.479 0.317 59.614 58.135 56.656 15.9 23.4 2.1/2 1

31、1 2.309 1.479 0.317 75.184 73.705 72.226 17.5 26.7 3 11 2.309 1.479 0.317 87.884 86.405 84.926 20.6 29.8 3.1/2 11 2.309 1.479 0.317 100.330 98.851 97.372 22.2 31.4 4 11 2.309 1.479 0.317 113.030 111.551 110.072 25.4 35.8 5 11 2.309 1.479 0.317 138.430 136.951 135.472 28.6 40.1 6 11 2.309 1.479 0.317

32、 163.830 162.351 160.872 28.6 40.1 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(hào)每25.4mm類的牙數(shù) n 基面上的基本直徑基準(zhǔn)距離大徑（基準(zhǔn)直徑）d=d 中徑d2=d2 小徑d1=d1 1/16 27 7.895 7.142 6.389 4.064 1/8 27 10.242 9.489 8.736 4.102 1/4 18 13.616 12.487 11.358 5.786 3/8 18 17.055 15.926 14.797 6.096 1/2 14 21.223 19.772 18.3

33、21 8.128 3/4 14 26.568 25.117 23.666 8.611 1 11.5 33.228 31.461 29.694 10.160 1.1/4 11.5 41.985 40.218 38.451 10.668 1.1/2 11.5 48.054 46.287 44.520 10.668 2 11.5 60.092 58.325 56.558 11.074 2.1/2 8 72.699 70.159 67.619 17.323 3 8 88.608 86.068 83.528 19.456 3.1/2 8 101.316 98.776 96.236 20.853 4 8

34、113.973 111.433 108.893 21.438 寸ww 牙型代號(hào)大徑mm d=d 螺距mm p 每英寸牙數(shù)tpi 中徑mm d2=d2 小徑外螺紋d3 牙型高h(yuǎn)1 底孔直徑mm 1/16 bsw 1.587 0.423 60 1.315 1.050 0.270 1.15 3/32 bsw 2.381 0.529 48 2.041 1.703 0.338 1.90 1/8 bsw 3.175 0.635 40 2.768 2.362 0.406 2.50 5/32 bsw 3.969 0.793 32 3.459 2.952 0.507 3.20 3/16 bsw 4.762 1.

35、058 24 4.084 3.407 0.677 3.70 7/32 bsw 5.556 1.058 24 4.878 4.201 0.677 4.50 1/4 bsw 6.350 1.270 20 5.537 4.724 0.813 5.10 5/16 bsw 7.938 1.411 18 7.034 6.131 0.904 6.50 3/8 bsw 9.525 1.588 16 8.509 7.492 1.017 7.90 7/16 bsw 11.113 1.814 14 9.951 8.789 1.162 9.20 1/2 bsw 12.700 2.117 12 11.345 9.990

36、 1.355 10.40 5/8 bsw 15.876 2.309 11 14.397 12.918 1.479 13.40 3/4 bsw 19.051 2.540 10 17.424 15.798 1.627 16.25 7/8 bsw 22.226 2.822 9 20.419 18.611 1.807 19.25 1 bsw 25.400 3.175 8 23.368 21.335 2.033 22.00 1 1/8 bsw 28.576 3.629 7 26.253 23.929 2.324 24.50 1 1/4 bsw 31.751 3.629 7 29.428 27.104 2

37、.324 27.25 1 3/8 bsw 34.926 4.233 6 32.215 29.505 2.711 30.25 1 1/2 bsw 38.100 4.233 6 35.391 32.680 2.711 33.50 1 5/8 bsw 41.277 5.080 5 38.024 34.771 3.253 35.50 1 3/4 bsw 44.452 5.080 5 41.199 37.946 3.253 38.50 1 7/8 bsw 47.627 5.645 4 1/2 44.012 40.398 3.614 41.25 2 bsw 50.802 5.645 4 1/2 47.18

38、7 43.573 3.614 44.50 2 1/4 bsw 57.152 6.350 4 53.086 49.020 4.066 50.00 2 1/2 bsw 63.502 6.350 4 59.436 55.370 4.066 56.00 2 3/4 bsw 69.853 7.257 3 1/2 65.205 60.558 4.647 61.50 3 bsw 76.203 7.257 3 1/2 71.556 66.909 4.647 68.00 3 1/4 bsw 82.553 7.816 3 1/4 77.548 72.544 5.005 73.75 3 1/2 bsw 88.903

39、 7.816 3 1/4 83.899 78.894 5.005 80.00 3 3/4 bsw 95.254 8.467 3 89.832 84.410 5.422 85.50 4 bsw 101.608.467 3 96.182 90.760 5.422 92.00 4 4 1/4 bsw 107.954 8.835 2 7/8 102.297 96.639 5.657 98.00 4 1/2 bsw 114.304 8.835 2 7/8 108.647 102.990 5.657 104.20 4 3/4 bsw 120.665 9.237 2 3/4 114.740 108.625

40、5.915 110.00 5 bsw 127.005 9.237 2 3/4 121.090 115.176 5.915 116.50 5 1/4 bsw 133.355 9.677 2 5/8 127.159 120.963 6.196 122.50 5 1/2 bsw 139.705 9.677 2 5/8 133.509 127.313 6.196 128.50 5 3/4 bsw 146.055 10.160 2 1/2 139.549 133.043 6.506 134.50 6 bsw 152.406 10.160 2 1/2 145.900 139.394 6.506 141.0

41、0 英制普通螺紋- 細(xì)牙- bsf 英制普通螺紋( 惠氏螺紋 ) - 細(xì)牙(bsw) 名義尺寸bsf 牙型代號(hào)大徑mm d=d 螺距mm p 每英寸牙數(shù)tpi 中徑mm d2=d2 小徑外螺紋d3 牙型高h(yuǎn)1 底孔直徑mm 3/16 bsf 4.763 0.794 32 4.255 3.747 0.508 4.00 7/32 bsf 5.556 0.907 28 4.975 4.394 0.581 4.60 1/4 bsf 6.350 0.977 26 5.725 5.100 0.625 5.30 9/32 bsf 7.142 0.977 26 6.518 5.893 0.625 6.10 5

42、/16 bsf 7.938 1.156 22 7.199 6.459 0.739 6.80 3/8 bsf 9.525 1.27 20 8.712 7.899 0.813 8.30 7/16 bsf 11.113 1.411 18 10.209 9.304 0.904 9.70 1/2 bsf 12.700 1.588 16 11.684 10.668 1.017 11.10 9/16 bsf 14.288 1.588 16 13.272 12.256 1.017 12.70 5/8 bsf 15.875 1.814 14 14.712 13.549 1.162 14.00 11/16 bsf 17.463 1.814 14 16.300 15.137