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鋼管尺寸

管道系統用鋼管的外徑、壁厚和內徑參考尺寸。

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概述

鋼管尺寸由 ASME/ANSI B36.10（焊接及無縫鍛鋼管）與 ASME/ANSI B36.19（不鏽鋼管）標準化。同一公稱管徑的所有鋼管，不論管號為何，外徑皆相同。管號越大，壁厚越厚，內孔則越小。

傳統上使用三種重量等級代號：

  • STD（標準）— 特定尺寸的基準壁厚
  • XS（加強）— 壁厚較厚，有時亦稱 XH（超重型）
  • XXS（雙重加強）— 壁厚最厚，有時亦稱 XXH

關鍵公式

截面積

A=π4(Do2−Di2)A = \frac{\pi}{4}\left(D_o^2 - D_i^2\right)

由壁厚計算內徑

Di=Do−2tD_i = D_o - 2t

單位長度重量

W=ρsteel⋅AmetalW = \rho_{steel} \cdot A_{metal}

其中鋼的密度約為 490 lb/ft³（7850 kg/m³）。

變數

符號說明單位
DoD_o外徑in
DiD_i內徑in
tt壁厚in
AA截面積in²
WW每英尺重量lb/ft

鋼管尺寸 — 常用管號

20 行
鋼管尺寸 — STD 與 XS 管號（ASME/ANSI B36.10/19）
(in)
(in)
(-)
(in)
(in)
1/80.40540S (STD)0.0680.269
1/80.40580S (XS)0.0950.215
1/40.5440S (STD)0.0880.364
1/40.5480S (XS)0.1190.302
1/20.8440S (STD)0.1090.622
1/20.8480S (XS)0.1470.546
3/41.0540S (STD)0.1130.824
3/41.0580S (XS)0.1540.742
11.31540S (STD)0.1331.049
11.31580S (XS)0.1790.957
1 1/21.940S (STD)0.1451.61
1 1/21.980S (XS)0.21.5
22.37540S (STD)0.1542.067
22.37580S (XS)0.2181.939
33.540S (STD)0.2163.068
33.580S (XS)0.32.9
44.540S (STD)0.2374.026
44.580S (XS)0.3373.826
66.62540S (STD)0.286.065
66.62580S (XS)0.4325.761

來源: ASME/ANSI B36.10/19

鋼管重量與內部特性

16 行
重量與內部面積 — STD 與 XS 管號
(in)
(-)
金屬面積 (in²)
鋼管重量 (lb/ft)
水重 (lb/ft)
1/240S (STD)0.250.850.132
1/280S (XS)0.321.090.102
3/440S (STD)0.3331.130.231
3/480S (XS)0.4341.470.188
140S (STD)0.4941.680.375
180S (XS)0.6392.170.312
1 1/240S (STD)0.82.720.882
1 1/280S (XS)1.0683.630.765
240S (STD)1.0753.651.45
280S (XS)1.4775.021.28
340S (STD)2.2287.583.2
380S (XS)3.01610.252.6
440S (STD)3.17410.795.5
480S (XS)4.40714.984.98
640S (STD)5.58118.9712.51
680S (XS)8.40528.5711.29

來源: ASME/ANSI B36.10/19

各管號內孔比較

內徑：STD 與 XS 管號比較

計算器 — 鋼管截面積

鋼管面積計算器

單位換算器

鋼管尺寸單位轉換器

原始源圖

鋼管

還原的原始來源表

以下表格由原始來源頁面還原，以保留完整參考資料。

原始 HTML 表格使用多層表頭。尺寸表共有 24 個 HTML 列，由 3 個表頭列及 21 個管徑資料列組成；特性表共有 23 個 HTML 列，由 2 個表頭列及 21 個管徑資料列組成。下方還原表格保留原始來源表格中的所有資料列。

ASME/ANSI B36.10/19 - 碳鋼、合金鋼與不鏽鋼管 - 尺寸

21 行
ASME/ANSI B36.10/19 - 碳鋼、合金鋼與不鏽鋼管 - 尺寸
鐵管尺寸
壁厚 - t -(inches)
內徑 - d - (inches)
1/80.405. STD XS. 40 8010S 40S 80S0.049 0.068 0.0950.307 0.269 0.215
1/40.54. STD XS. 40 8010S 40S 80S0.065 0.088 0.1190.410 0.364 0.302
3/80.675. STD XS. 40 8010S 40S 80S0.065 0.091 0.1260.545 0.493 0.423
1/20.84.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.083 0.109 0.147 0.187 0.2940.710 0.674 0.622 0.546 0.466 0.252
3/41.05.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.083 0.113 0.154 0.219 0.3080.920 0.884 0.824 0.742 0.612 0.434
11.315.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.109 0.133 0.179 0.250 0.3581.185 1.097 1.049 0.957 0.815 0.599
1 1/41.66.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.109 0.140 0.191 0.250 0.3821.530 1.442 1.380 1.278 1.160 0.896
1 1/21.9.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.109 0.145 0.200 0.281 0.4001.770 1.682 1.610 1.500 1.338 1.100
22.375.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.065 0.109 0.154 0.218 0.344 0.4362.245 2.157 2.067 1.939 1.687 1.503
2 1/22.875.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.083 0.120 0.203 0.276 0.375 0.5522.709 2.635 2.469 2.323 2.125 1.771
33.5.. STD XS. XXS.. 40 80 160.5S 10S 40S 80S..0.083 0.120 0.216 0.300 0.438 0.6003.334 3.260 3.068 2.900 2.624 2.300
3 1/24.. STD XS.. 40 805S 10S 40S 80S0.083 0.120 0.226 0.3183.834 3.760 3.548 3.364
44.5.. STD XS.. XXS.. 40 80 120 160.5S 10S 40S 80S...0.083 0.120 0.237 0.337 0.438 0.531 0.6744.334 4.260 4.026 3.826 3.624 3.438 3.152
55.563.. STD XS.. XXS.. 40 80 120 160.5S 10S 40S 80S...0.109 0.134 0.258 0.375 0.500 0.625 0.7505.345 5.295 5.047 4.813 4.563 4.313 4.063
66.625.. STD XS.. XXS.. 40 80 120 160.5S 10S 40S 80S...0.109 0.134 0.280 0.432 0.562 0.718 0.8646.407 6.357 6.065 5.761 5.501 5.189 4.897
88.625.... STD. XS... XXS... 20 30 40 60 80 100 120 140. 1605S 10S.. 40S. 80S.....0.109 0.148 0.250 0.277 0.322 0.406 0.500 0.594 0.719 0.812 0.875 0.9068.407 8.329 8.125 8.071 7.981 7.813 7.625 7.437 7.187 7.001 6.875 6.813
1010.75.... STD XS....... 20 30 40 60 80 100 120 140 1605S 10S.. 40S 80S.....0.134 0.165 0.250 0.307 0.365 0.500 0.594 0.719 0.844 1.000 1.12510.482 10.420 10.250 10.136 10.020 9.750 9.562 9.312 9.062 8.750 8.500
1212.75.... STD. XS........ 20 30. 40. 60 80 100 120 140 1605S 10S.. 40S. 80S......0.156 0.180 0.25 0.330 0.375 0.406 0.500 0.562 0.688 0.844 1.000 1.125 1.31212.438 12.390 12.250 12.090 12.000 11.938 11.750 11.626 11.374 11.062 10.750 10.500 10.126
1414.... STD. XS..... .... 10 20 30 40. 60 80 100 120 140 1605S 10S...........0.156 0.188 0.250 0.312 0.375 0.438 0.500 0.594 0.750 0.938 1.094 1.250 1.40613.688 13.624 13.500 13.376 13.250 13.124 13.000 12.812 12.500 12.124 11.812 11.500 11.188
1616.... STD XS........ 10 20 30 40 60 80 100 120 140 1605S 10S..........0.165 0.188 0.250 0.312 0.375 0.500 0.656 0.844 1.031 1.219 1.438 1.59415.670 15.624 15.500 15.376 15.250 15.000 14.688 14.312 13.938 13.562 13.124 12.812
1818.... STD. XS......... 10 20. 30. 40 60 80 100 120 140 1605S 10S............0.165 0.188 0.250 0.312 0.375 0.438 0.500 0.562 0.750 0.938 1.156 1.375 1.562 1.78117.670 17.624 17.500 17.376 17.250 17.124 17.000 16.876 16.500 16.124 15.688 15.250 14.876 14.438

來源: engineeringtoolbox.com

ASME/ANSI B36.10/19 - 碳鋼、合金鋼與不鏽鋼管 - 特性

21 行
ASME/ANSI B36.10/19 - 碳鋼、合金鋼與不鏽鋼管 - 特性
內部橫截面積
內部橫截面積
面積慣性矩 - l - (inches4)
鋼管重量 (pounds per foot)
水重 (pounds per foot)
1/80.0548 0.0720 0.09250.0740 0.0568 0.03640.00051 0.00040 0.000250.00088 0.00106 0.001220.19 0.24 0.310.032 0.025 0.0160.106 0.106 0.1060.00437 0.00523 0.00602
1/40.0970 0.1250 0.15740.1320 0.1041 0.07160.00091 0.00072 0.000500.00279 0.00331 0.003770.33 0.42 0.540.057 0.045 0.0310.141 0.141 0.1410.01032 0.01227 0.01395
3/80.1246 0.1670 0.21730.2333 0.1910 0.14050.00162 0.00133 0.000980.00586 0.00729 0.008620.42 0.57 0.740.101 0.083 0.0610.178 0.178 0.1780.01736 0.02160 0.02554
1/20.1583 0.1974 0.2503 0.3200 0.3836 0.50430.3959 0.3568 0.3040 0.2340 0.1706 0.0500.00275 0.00248 0.00211 0.00163 0.00118 0.000350.01197 0.01431 0.01709 0.02008 0.02212 0.024240.54 0.67 0.85 1.09 1.31 1.710.172 0.155 0.132 0.102 0.074 0.0220.220 0.220 0.220 0.220 0.220 0.2200.02849 0.03407 0.04069 0.04780 0.05267 0.05772
3/40.2011 0.2521 0.3326 0.4335 0.5698 0.71800.6648 0.6138 0.5330 0.4330 0.2961 0.1480.00462 0.00426 0.00371 0.00300 0.00206 0.001030.02450 0.02969 0.03704 0.04479 0.05269 0.057920.69 0.86 1.13 1.47 1.94 2.440.288 0.266 0.231 0.188 0.128 0.0640.275 0.275 0.275 0.275 0.275 0.2750.04667 0.05655 0.07055 0.08531 0.10036 0.11032
10.2553 0.4130 0.4939 0.6388 0.8365 1.07601.1029 0.9452 0.8640 0.7190 0.5217 0.2820.00766 0.00656 0.00600 0.00499 0.00362 0.001960.04999 0.07569 0.08734 0.1056 0.1251 0.14050.87 1.40 1.68 2.17 2.84 3.660.478 0.409 0.375 0.312 0.230 0.1220.344 0.344 0.344 0.344 0.344 0.3440.07603 0.11512 0.1328 0.1606 0.1903 0.2136
1 1/40.3257 0.4717 0.6685 0.8815 1.1070 1.5341.839 1.633 1.495 1.283 1.057 0.6300.01277 0.01134 0.01040 0.00891 0.00734 0.004380.1038 0.1605 0.1947 0.2418 0.2839 0.34111.11 1.81 2.27 3.00 3.76 5.210.797 0.708 0.649 0.555 0.458 0.2730.435 0.435 0.435 0.435 0.435 0.4350.1250 0.1934 0.2346 0.2913 0.3421 0.4110
1 1/20.3747 0.6133 0.7995 1.068 1.429 1.8852.461 2.222 2.036 1.767 1.406 0.9500.01709 0.01543 0.01414 0.01225 0.00976 0.006600.1579 0.2468 0.3099 0.3912 0.4824 0.56781.28 2.09 2.72 3.63 4.86 6.411.066 0.963 0.882 0.765 0.608 0.420.497 0.497 0.497 0.497 0.497 0.4970.1662 0.2598 0.3262 0.4118 0.5078 0.5977
20.4717 0.7760 1.075 1.477 2.190 2.6563.958 3.654 3.355 2.953 2.241 1.7740.02749 0.02538 0.02330 0.02050 0.01556 0.012320.3149 0.4992 0.6657 0.8679 1.162 1.3111.61 2.64 3.65 5.02 7.46 9.031.72 1.58 1.45 1.28 0.97 0.770.622 0.622 0.622 0.622 0.622 0.6220.2652 0.4204 0.5606 0.7309 0.979 1.104
2 1/20.7280 1.039 1.704 2.254 2.945 4.0285.764 5.453 4.788 4.238 3.546 2.4640.04002 0.03787 0.03322 0.02942 0.02463 0.017100.7100 0.9873 1.530 1.924 2.353 2.8712.48 3.53 5.79 7.66 10.01 13.692.50 2.36 2.07 1.87 1.54 1.070.753 0.753 0.753 0.753 0.753 0.7530.4939 0.6868 1.064 1.339 1.638 1.997
30.8910 1.274 2.228 3.016 4.205 5.4668.730 8.347 7.393 6.605 5.408 4.1550.06063 0.05796 0.05130 0.04587 0.03755 0.028851.301 1.822 3.017 3.894 5.032 5.9933.03 4.33 7.58 10.25 14.32 18.583.78 3.62 3.20 2.6 2.35 1.800.916 0.916 0.916 0.916 0.916 0.9160.7435 1.041 1.724 2.225 2.876 3.424
3 1/21.021 1.463 2.680 3.67811.545 11.104 9.886 8.8880.08017 0.07711 0.06870 0.061701.960 2.755 4.788 6.2803.48 4.97 9.11 12.505.00 4.81 4.29 3.841.047 1.047 1.047 1.0470.9799 1.378 2.394 3.140
41.152 1.651 3.174 4.407 5.595 6.621 8.10114.75 14.25 12.73 11.50 10.31 9.28 7.800.10245 0.09898 0.08840 0.07986 0.0716 0.0645 0.05422.810 3.963 7.233 9.610 11.65 13.27 15.283.92 5.61 10.79 14.98 19.0 22.51 27.546.39 6.18 5.50 4.98 4.47 4.02 3.381.178 1.178 1.178 1.178 1.178 1.178 1.1781.249 1.761 3.214 4.271 5.178 5.898 6.791
51.868 2.285 4.300 6.112 7.953 9.696 11.34022.44 22.02 20.01 18.19 16.35 14.61 12.970.1558 0.1529 0.1390 0.1263 0.1136 0.1015 0.09016.947 8.425 15.16 20.67 25.73 30.03 33.636.36 7.77 14.62 20.78 27.04 32.96 38.559.72 9.54 8.67 7.88 7.09 6.33 5.611.456 1.456 1.456 1.456 1.456 1.456 1.4562.498 3.029 5.451 7.431 9.250 10.796 12.090
62.231 2.733 5.581 8.405 10.70 13.32 15.6432.24 31.74 28.89 26.07 23.77 21.15 18.840.2239 0.2204 0.2006 0.1810 0.1650 0.1469 0.130811.85 14.40 28.14 40.49 49.61 58.97 66.337.60 9.29 18.97 28.57 36.39 45.35 53.1613.97 13.75 12.51 11.29 10.30 9.16 8.161.734 1.734 1.734 1.734 1.734 1.734 1.7343.576 4.346 8.496 12.22 14.98 17.81 20.02
82.916 3.941 6.57 7.26 8.40 10.48 12.76 14.96 17.84 19.93 21.30 21.9755.51 54.48 51.85 51.16 50.03 47.94 45.66 43.46 40.59 38.50 37.12 36.460.3855 0.3784 0.3601 0.3553 0.3474 0.3329 0.3171 0.3018 0.2819 0.2673 0.2578 0.253226.44 35.41 57.72 63.35 72.49 88.73 105.7 121.3 140.5 153.7 162.0 165.99.93 13.40 22.36 24.70 28.55 35.64 43.39 50.95 60.71 67.76 72.42 74.6924.06 23.61 22.47 22.17 21.70 20.77 19.78 18.83 17.59 16.68 16.10 15.802.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.2586.131 8.212 13.39 14.69 16.81 20.58 24.51 28.14 32.58 35.65 37.56 38.48
104.36 5.49 8.24 10.07 11.90 16.10 18.92 22.63 26.24 30.63 34.0286.29 85.28 82.52 80.69 78.86 74.66 71.84 68.13 64.53 60.13 56.750.5992 0.5922 0.5731 0.5603 0.5475 0.5185 0.4989 0.4732 0.4481 0.4176 0.394163.0 76.9 113.7 137.4 160.7 212.0 244.8 286.1 324.2 367.8 399.315.19 18.65 28.04 34.24 40.48 54.74 64.43 77.03 89.29 104.13 115.6437.39 36.95 35.76 34.96 34.20 32.35 31.13 29.53 27.96 26.06 24.592.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.81411.71 14.30 21.15 25.57 29.90 39.43 45.54 53.22 60.32 68.43 74.29
126.17 7.11 9.82 12.87 14.58 15.77 19.24 21.52 26.03 31.53 36.91 41.08 47.14121.50 120.57 117.86 114.80 113.10 111.93 108.43 106.16 101.64 96.14 90.76 86.59 80.530.8438 0.8373 0.8185 0.7972 0.7854 0.7773 0.7528 0.7372 0.7058 0.6677 0.6303 0.6013 0.5592122.4 140.4 191.8 248.4 279.3 300.3 361.5 400.4 475.1 561.6 641.6 700.5 781.120.98 24.17 33.38 43.77 49.56 53.52 65.42 73.15 88.63 107.32 125.49 139.67 160.2752.65 52.25 51.07 49.74 49.00 48.50 46.92 46.00 44.04 41.66 39.33 37.52 34.893.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.33819.2 22.0 30.2 39.0 43.8 47.1 56.7 62.8 74.6 88.1 100.7 109.9 122.6
146.78 8.16 10.80 13.42 16.05 18.66 21.21 24.98 31.22 38.45 44.32 50.07 55.63147.15 145.78 143.14 140.52 137.88 135.28 132.73 128.96 122.72 115.49 109.62 103.87 98.311.0219 1.0124 0.9940 0.9758 0.9575 0.9394 0.9217 0.8956 0.8522 0.8020 0.7612 0.7213 0.6827162.6 194.6 255.3 314.4 372.8 429.1 483.8 562.3 678.3 824.4 929.6 1027.0 1117.023.07 27.73 36.71 45.61 54.57 63.44 72.09 85.05 106.13 130.85 150.79 170.28 189.1163.77 63.17 62.03 60.89 59.75 58.64 57.46 55.86 53.18 50.04 47.45 45.01 42.603.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.66523.2 27.8 36.6 45.0 53.2 61.3 69.1 80.3 98.2 117.8 132.8 146.8 159.6
168.21 9.34 12.37 15.38 18.41 24.35 31.62 40.14 48.48 56.56 65.78 72.10192.85 191.72 188.69 185.69 182.65 176.72 169.44 160.92 152.58 144.50 135.28 128.961.3393 1.3314 1.3103 1.2895 1.2684 1.2272 1.1766 1.1175 1.0596 1.0035 0.9394 0.8956257.3 291.9 383.7 473.2 562.1 731.9 932.4 1155.8 1364.5 1555.8 1760.3 1893.527.90 31.75 42.05 52.27 62.58 82.77 107.50 136.61 164.82 192.43 223.64 245.2583.57 83.08 81.74 80.50 79.12 76.58 73.42 69.73 66.12 62.62 58.64 55.834.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.18932.2 36.5 48.0 59.2 70.3 91.5 116.6 144.5 170.5 194.5 220.0 236.7
189.25 10.52 13.94 17.34 20.76 24.17 27.49 30.79 40.64 50.23 61.17 71.81 80.66 90.75245.22 243.95 240.53 237.13 233.71 230.30 226.98 223.68 213.83 204.24 193.30 182.66 173.80 163.721.7029 1.6941 1.6703 1.6467 1.6230 1.5990 1.5763 1.5533 1.4849 1.4183 1.3423 1.2684 1.2070 1.1369367.6 417.3 549.1 678.2 806.7 930.3 1053.2 1171.5 1514.7 1833.0 2180.0 2498.1 2749.0 3020.031.43 35.76 47.39 58.94 70.59 82.15 93.45 104.67 138.17 170.92 207.96 244.14 274.22 308.50106.26 105.71 104.21 102.77 101.18 99.84 98.27 96.93 92.57 88.50 83.76 79.07 75.32 70.884.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.71240.8 46.4 61.1 75.5 89.6 103.4 117.0 130.1 168.3 203.8 242.3 277.6 305.5 335.6

來源: engineeringtoolbox.com

工程要點

  • 外徑的製造公差雖小但不為零；所列數值為 ASME/ANSI B36.10/19 規定的公稱值。
  • 不鏽鋼管（B36.19）的外徑與碳鋼管相同，但部分管號（例如 5S、10S）的壁厚較薄，而 B36.10 中並無這些管號。
  • Schedule 160 與 XXS 的壁厚明顯較厚，適用於高壓用途。尺寸 1/2 in 至 6 in 的 XXS 壁厚大於 Sch 160。
  • 鋼管重量取決於材料密度；表格假設碳鋼密度為 490 lb/ft³。其他合金應依密度比例調整。
  • 水重以管內完全充滿且密度為 62.4 lb/ft³ 為假設。
  • 公制換算：1 in = 25.4 mm；1 lb/ft = 1.488 kg/m。

參考資料

來源: engineeringtoolbox.com