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美标-国标管道尺寸对照表

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公制(外径*壁厚）mm国标（DN）mm国标外径（mm)备注10Sφ17.1×1.6540Sφ17.1×2.3180Sφ17.1×3.20STDφ17.1×2.3140φ17.1×2.31XSφ17.1×3.2080φ17.1×3.205Sφ21.3×1.6510Sφ21.3×2.1140Sφ21.3×2.7780Sφ21.3×3.73STDφ21.3×2.7740φ21.3×2.77XSφ21.3×3.7380φ21.3×3.73160φ21.3×4.78XXSφ21.3×7.475Sφ26.7×1.6510Sφ26.7×2.1140Sφ26.7×2.8780Sφ26.7×3.91STDφ26.7×2.8740φ26.7×2.87XSφ26.7×3.9180φ26.7×3.91160φ26.7×5.56XXSφ26.7×7.825Sφ33.4×1.6510Sφ33.4×2.7740Sφ33.4×3.3880Sφ33.4×4.55STDφ33.4×3.3840φ33.4×3.38XSφ33.4×4.5580φ33.4×4.55160φ33.4×6.35XXSφ33.4×9.095Sφ42.2×1.6510Sφ42.2×2.7740Sφ42.2×3.5680Sφ42.2×4.85STDφ42.2×3.5640φ42.2×3.56XSφ42.2×4.8580φ42.2×4.85160φ42.2×6.35XXSφ42.2×9.705Sφ48.3×1.6510Sφ48.3×2.7740Sφ48.3×3.6880Sφ48.3×5.08美标管子规格对照表英制INCH3/8"

1"25321 1/4"32381/2"15183/4"2025STDφ48.3×3.6840φ48.3×3.68XSφ48.3×5.0880φ48.3×5.08160φ48.3×7.14XXSφ48.3×10.155Sφ60.3×1.6510Sφ60.3×2.7740Sφ60.3×3.9180Sφ60.3×5.54STDφ60.3×3.9140φ60.3×3.91XSφ60.3×5.5480φ60.3×5.54160φ60.3×8.74XXSφ60.3×11.075Sφ73.0×2.1110Sφ73.0×3.0540Sφ73.0×5.1680Sφ73.0×7.01STDφ73.0×5.1640φ73.0×5.16XSφ73.0×7.0180φ73.0×7.01160φ73.0×9.53XXSφ73.0×14.025Sφ88.9×2.1110Sφ88.9×3.0540Sφ88.9×5.4980Sφ88.9×7.62STDφ88.9×5.4940φ88.9×5.49XSφ88.9×7.6280φ88.9×7.62160φ88.9×11.13XXSφ88.9×15.245Sφ114.3×2.1110Sφ114.3×3.0540Sφ114.3×6.0280Sφ114.3×8.56STDφ114.3×6.0240φ114.3×6.02XSφ114.3×8.5680φ114.3×8.56120φ114.3×11.13160φ114.3×13.49XXSφ114.3×17.125Sφ141.3×2.7710Sφ141.3×3.4040Sφ141.3×6.5580Sφ141.3×9.53STDφ141.3×6.5540φ141.3×6.55XSφ141.3×9.532 1/2"65733"80891 1/2"40452"5057

4"1001085"12513380φ141.3×9.53120φ141.3×12.70160φ141.3×15.88XXSφ141.3×19.055Sφ168.3×2.7710Sφ168.3×3.4040Sφ168.3×7.1180Sφ168.3×10.97STDφ168.3×7.1140φ168.3×7.11XSφ168.3×10.9780φ168.3×10.97120φ168.3×14.27160φ168.3×18.26XXSφ168.3×21.955Sφ219.1×2.7710Sφ219.1×3.7640Sφ219.1×8.1880Sφ219.1×12.7020φ219.1×6.3530φ219.1×7.04STDφ219.1×8.1840φ219.1×8.1860φ219.1×10.31XSφ219.1×12.7080φ219.1×12.70100φ219.1×15.09120φ219.1×18.26140φ219.1×20.62160φ219.1×23.01XXSφ219.1×22.235Sφ273.1×3.4010Sφ273.1×4.1940Sφ273.1×9.2780Sφ273.1×12.7020φ273.1×6.3530φ273.1×7.80STDφ273.1×9.2740φ273.1×9.2760φ273.1×12.70XSφ273.1×12.7080φ273.1×15.09100φ273.1×18.26120φ273.1×21.44140φ273.1×25.40160φ273.1×28.58XXSφ273.1×25.405Sφ323.9×3.9610Sφ323.9×4.5740Sφ323.9×9.5280Sφ323.9×12.7020φ323.9×6.3530φ323.9×8.38STDφ323.9×9.536"1501598"20021910"25027340φ323.9×10.3160φ323.9×14.27XSφ323.9×12.7080φ323.9×17.48100φ323.9×21.44120φ323.9×25.40140φ323.9×28.58160φ323.9×33.32XXSφ323.9×25.405Sφ355.6×3.9610Sφ355.6×4.7810φ355.6×6.3520φ355.6×7.9230φ355.6×9.53STDφ355.6×9.5340φ355.6×11.1360φ355.6×15.09XSφ355.6×12.7080φ355.6×19.05100φ355.6×23.83120φ355.6×27.79140φ355.6×31.75160φ355.6×35.715Sφ406.4×4.1910Sφ406.4×4.7810φ406.4×6.3520φ406.4×7.9230φ406.4×9.53STDφ406.4×9.5340φ406.4×12.7060φ406.4×16.66XSφ406.4×12.7080φ406.4×21.44100φ406.4×26.19120φ406.4×30.96140φ406.4×36.53160φ406.4×40.495Sφ457.0×4.1910Sφ457.0×4.7810φ457.0×6.3520φ457.0×7.9230φ457.0×11.13STDφ457.0×9.5340φ457.0×14.2760φ457.0×19.05XSφ457.0×12.7080φ457.0×23.88100φ457.0×29.36120φ457.0×34.93140φ457.0×39.67160φ457.0×45.245Sφ508.0×4.7810Sφ508.0×5.5410φ508.0×6.3514"35037716"40042612"300325

18"45047820φ508.0×9.5330φ508.0×12.70STDφ508.0×9.5340φ508.0×15.0960φ508.0×20.62XSφ508.0×12.7080φ508.0×26.19100φ508.0×32.54120φ508.0×38.10140φ508.0×44.45160φ508.0×50.015Sφ559.0×4.7810Sφ559.0×5.5410φ559.0×6.3520φ559.0×9.5330φ559.0×12.70STDφ559.0×9.5360φ559.0×22.23XSφ559.0×12.7080φ559.0×28.58100φ559.0×34.93120φ559.0×41.28140φ559.0×47.63160φ559.0×53.985Sφ610.0×5.5410Sφ610.0×6.3510φ610.0×6.3520φ610.0×9.5330φ610.0×14.27STDφ610.0×9.5340φ610.0×17.4860φ610.0×24.61XSφ610.0×12.7080φ610.0×30.96100φ610.0×38.89120φ610.0×46.02140φ610.0×52.37160φ610.0×59.5410φ660.0×7.9220φ660.0×12.70STDφ660.0×9.53XSφ660.0×12.7010φ711.0×7.9220φ711.0×12.7030φ711.0×15.88STDφ711.0×9.53XSφ711.0×12.705Sφ762.0×6.3510Sφ762.0×7.9210φ762.0×7.9220φ762.0×12.7030φ762.0×15.88STDφ762.0×9.53XSφ762.0×12.7022"55055924"60063020"500529

30"75076226"65066028"70072010φ813.0×7.9220φ813.0×12.7030φ813.0×15.88STDφ813.0×9.5340φ813.0×17.48XSφ813.0×12.7010φ864.0×7.9220φ864.0×12.7030φ864.0×15.88STDφ864.0×9.5340φ864.0×17.48XSφ864.0×12.7010φ914.0×7.9220φ914.0×12.7030φ914.0×15.88STDφ914.0×9.5340φ914.0×19.05XSφ914.0×12.70STDφ965.0×9.53XSφ965.0×12.70STDφ1016.0×9.53XSφ1016.0×12.7032"80082038"40"34"85086436"900921

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国标管径尺寸对照表

国标管径尺寸对照表

国标管径尺寸对照表

以下是一些常见的国标管径尺寸对照表，其中包括公制和英制的常用管径尺寸：

公制管径（单位：毫米） 英制管径（单位：英寸）

6 mm 1/4 inch

8 mm 5/16 inch

10 mm 3/8 inch

15 mm 1/2 inch

20 mm 3/4 inch

25 mm 1 inch

32 mm 1 1/4 inch

40 mm 1 1/2 inch

50 mm 2 inch

65 mm 2 1/2 inch

80 mm 3 inch

100 mm 4 inch

这只是一些常见的管径尺寸对照表，实际上还有更多不同尺寸的管径。需要注意的是，不同国家和地区可能有不同的标准和命名方式，因此在具体应用中，最好参考当地的管道标准和规范。

1到48寸管材尺寸各种标准对照表

1到48寸管材尺寸各种标准对照表

公称尺寸inch 公称通径DN 国标A 国标B 美标 日标

1/2" 0.84 15 21.3 18 21.3

3/4" 1.05 20 26.9 25 26.7 27.2

1" 1.315 25 33.7 32 33.4 34

1.1/4" 1.66 32 42.4 38 42.2 42.7

1.1/2" 1.9 40 48.3 45 48.3 48.6

2" 2.375 50 60.3 57 60.3 60.5

21/2" 2.875 65 76.1 767376.3

3" 3.5 80 88.9 89 88.9 89.1

31/2" 90 101.6 101.6

4" 4.5 100 114.3 108 114.3 114.3

5" 5.563 125 139 133 141.3 139.8

6" 6.625 150 168.3 159 168.3 165.2

8" 8.625 200 219.1 219219.1 216.3

10" 10.75 250 273 273 273.1 267.4

12" 12.75 300 323.9 325 323.9 318.5

14" 14 350 355.6 377 355.6 355.6

16" 16 400 406.4 426 406.4 406.4

18" 18 450 457 478 457.2 457.2

20" 20 500 508 529 508 508

22" 22 550 559 558.8 558

24" 24 600 610 630 609.6 609.6

26" 26 650 660 660.4 660.4

28" 28 700 711720 711.2 711.2

30" 30 750 762 762 762

32" 32 800 813 820 812.8 812.8

34" 34 850 864 863.6 863.6

一般管道常用标准尺寸对照表格式已好直接打印

一般管道常用标准尺寸对照表格式已好直接打印

一般管道常用标准尺寸对照表格式已好直接打印

Revised by BLUE on the afternoon of December 12,2020. 水管气管管道常用标准尺寸对照：

1英寸=2.54厘米

把1英寸分成8等分；

1/81/43/81/25/83/47/8英寸。

相当于通常说的1分管到7分管,

更小的尺寸用1/16、1/32、1/64来表示，单位还是英寸。如果分母和分子能够约分（如分子是2、4、8、16、32）就应该约分。

英寸的表示是在右上角打上两撇，如1/2"

如DN25（25mm，下同）的水管就是英制1"的水管，也是解放前的8分水管。

DN15的水管就是英制1/2"的水管，也是解放前的4分水管。

如DN20的水管就是英制3/4"的水管，也是解放前的6分水管。

一、尺寸：见附表

二、标准：有英制标准和国际标准两种。

三、材质：材质就有很多，根据不同的需要。

1、塑料管：

有PVC、UPVC、PPR、PPR稳态塑铝合金、铝塑管、玻纹管、PE管等。 2、金属管：

镀锌管、不锈钢管、不锈钢衬塑管、薄壁不锈钢管、镀锌衬塑管、铜管、铸铁管等。

我国水管的规格均采用我国法定单位的公称直径来标称的。如DN20，就是表示公称直径20毫米的镀锌水管。镀锌水管的系列有：DN15、DN20、DN25、DN32、DN4O、DN50、DN65、DN80、DN100、......等。

你说的几分几分的名称，是解放前我国落后，没有自己的规格和单位，就沿用了英国的单位。英国的单位是：1英尺（ft）=12英寸1英寸（in）=1000英丝（mil）。其中水管的规格是英寸的分数，刚好是把一英寸分成了八份就好表示水管的规格，就创造了一个英分的单位。其实没有英分这个单位，而是用分数带上英寸来表示1英寸以下的尺寸。

把英寸分成8分，应该是这样说：

1/8英寸1/43/81/25/83/47/8

美标钢管管件尺寸对照表【可编辑】

美标钢管管件尺寸对照表【可编辑】

美标钢管管件尺寸对照表 以下表格为美标钢管管件尺寸对照表，仅供大家参考使用： Nominal

diameter

in

inches External

diameter

in

millimeters ANSI B36.19 ANSI B36.10 Nominal diameter in inches 5s 10s Sched.40s Sched.80s 10 20 30 Standard

mm Kg/m mm Kg/m mm Kg/m mm Kg/m mm Kg/m mm Kg/m mm Kg/m mm Kg/m

1/8" 10.29 - - 1.24 0.281 1.73 0371 2.41 0.467 - - - - - - 1.73 0.371 1/4" 13.72 - - 1.65 0.499 2.24 0.644 3.02 0.809 - - - - - - 2.24 0.644 3/8" 17.15 - - 1.65 0.640 2.31 0.858 3.20 1.118 - - - - - - 2.31 0.858 1/2" 21.34 1.65 0.814 2.11 1.016 2.77 1.26 3.73 1.62 - - - - - - 2.77 1.26 3/4" 26.67 1.65 1.034 2.11 1.298 2.87 1.68 3.91 2.19 - - - - - - 2.87 1.68 1" 33.40 1.65 1.312 2.77 2.125 3.338 2.50 4.55 3.23 - - - - - - 3.36 2.50 11/4" 42.16 1.65 1.674 2.77 2.732 3.56 3.38 4.85 4.46 - - - - - - 3.56 3.38 11/2" 48.26 1.65 1.926 2.77 3.155 3.68 4.05 5.08 5.40 - - - - - - 3.68 4.05 2" 60.33 1.65 2.424 2.77 3.992 3.91 5.43 5.54 7.47 - - - - - - 3.91 5.43 21/2" 73.03 2.11 3.747 3.05 5.345 5.16 8.62 7.01 11.40 - - - - - - 5.16 8.62 3" 88.90 2.11 4.585 3.05 6.557 5.49 11.28 7.62 15.25 - - - - - - 5.49 11.28 31/2" 101.60 2.11 5.272 3.05 7.526 5.74 13.56 8.08 18.62 - - - - - - 5.74 13.56 4" 114.30 2.11 5.945 3.05 8.496 6.02 16.06 8.56 22.29 - - - - - - 6.02 16.06 5" 141.30 2.77 9.639 3.40 11.740 6.55 21.76 9.52 30.92 - - - - - - 6.55 21.76 6" 168.30 2.77 11.514 3.40 14.037 7.11 28.23 10.97 42.52 - - - - - - 7.11 28.23 8" 219.08 2.77 15.049 3.76 20.334 8.18 42.49 12.7 64.57 - - 6.35 33.28 7.04 36.80 8.18 42.40 10" 273.05 3.40 23.028 4.19 28.290 9.27 60.24 12.7 81.46 - - 6.35 41.70 7.8 51.00 9.27 60.24 12" 323.85 3.96 31.806 4.57 36.633 9.52 73.76 12.7 97.36 - - 6.35 49.68 8.38 65.14 9.52 73.76 14" 355.60 3.98 34.99 4.78 42.102 - - - - 6.35 54.63 7.92 67.98 9.52 81.21 9.52 81.21 16" 406.40 4.19 42.35 4.78 48.220 - - - - 6.35 62.58 7.92 77.90 9.52 93.13 9.52 93.18 18" 457.20 4.19 47.7 4.78 54.300 - - - - 6.35 70.50 7.92 87.80 11.13 122.12 9.52 105.05 20" 508 4.77 60.32 5.53 69.766 - - - - 6.35 78.47 9.52 116.97 12.7 155.00 9.52 116.97 22" 553.8 4.77 - 5.53 - - - - - 6.35 86.42 9.52 128.89 12.7 170.86 9.52 128.89 24" 609.6 5.54 84.10 6.35 96.215 - - - - 6.35 96.215 9.52 140.80 14.7 209.54 9.52 140.81 26" 660.4 - - - - - - - - 7.92 127.58 12.7 202.65 - - 9.52 152.73 28" 711.6 - - - - - - - - 7.92 137.52 12.7 218.54 15.88 271.94 9.52 164.65 30" 762 6.35 120.59 7.92 147.45 - - - - 7.92 147.45 12.7 234.44 15.88 291.81 9.52 176.57 32" 812.8 - - - - - - - - 7.92 157.39 12.7 250.33 15.88 311.67 9.52 188.50 34" 863.6 - - - - - - - - 7.92 167.32 12.7 266.22 15.88 331.54 9.52 200.42 36" 914.4 - - - - - - - - 7.92 177.26 12.7 282.18 15.88 351.41 9.52 212.34