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ASME/ANSI B36.10/19 - Carbon, Alloy and Stainless Steel Pipes - Dimensions - Metric Units

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Covers the standardization of dimensions of welded and seamless wrought steel pipe for high and low temperatures and pressures.

The steel pipe data chart below can be used to find pipe sizes, diameters, wall thickness, working pressures and more The chart is based on ASME/ANSI B 36.10 Welded and Seamless Wrought Steel Pipe and ASME/ANSI B36.19 Stainless Steel Pipe.

Regardless of schedule number, pipes of a particular size all have the same outside diameter (not withstanding manufacturing tolerances). As the schedule number increases, the wall thickness increases, and the actual bore is reduced. For example:

  • A 4 inches (100 mm) Schedule 40 pipe has an outside diameter of 4.500 inches (114.30 mm), a wall thickness of 0.237 inches (6.02 mm), giving a bore of 4.026 inches (102.26 mm)
  • A 4 inches (100 mm) Schedule 80 pipe has an outside diameter of 4.500 inches ( 114.30 mm), a wall thickness of 0.337 inches (8.56 mm), giving a bore of 3.826 inches (97.18 mm)

For full table with Pipe and Water Weight - rotate the screen!

ASME/ANSI B36.10/19 - Carbon, Alloy and Stainless Steel Pipes - Dimensions - Metric Units
Diameter NominalScheduleOutside Diameter
- D -
(mm)

Wall Thickness
- t -
(mm)

Inside Diameter
- d - 
(mm)

Inside Area
(cm2)		Pipe Weight
(kg/m)

Water Weight
(kg/m)
(inches) (mm)
1/8 6 10S   10.3 1.245 7.811 0.479 0.277 0.048
Std 40 1.727 6.846 0.368 0.364 0.037
XS 80 2.413 5.474 0.235 0.468 0.024
1/4 8 10S   13.7 1.651 10.398 0.846 0.489 0.085
Std 40 2.235 9.23 0.669 0.630 0.067
XS 80 3.023 7.654 0.460 0.794 0.046
3/8 10 10S   17.145 1.651 13.843 1.505 0.629 0.151
Std 40 2.311 12.523 1.232 0.843 0.123
XS 80 3.2 10.745 0.907 1.098 0.091
1/2 15 5S   21.336 1.651 18.034 2.554 0.799 0.255
10S   2.108 17.12 2.302 0.997 0.230
Std 40 2.769 15.798 1.960 1.265 0.190
XS 80 3.734 13.868 1.510 1.617 0.151
  160 4.75 11.836 1.100 1.938 0.110
XXS   7.468 6.4 0.322 2.247 0.032
3/4 20 5S   26.67 1.651 23.368 4.289 1.016 0.429
10S   2.108 22.454 3.960 1.273 0.396
Std 40 2.87 20.93 3.441 1.680 0.344
XS 80 3.912 18.846 2.790 2.190 0.279
  160 5.537 15.596 1.910 2.878 0.191
XXS   7.823 11.024 0.954 3.626 0.095
1 25 5S   33.401 1.651 30.099 7.115 1.289 0.712
10S   2.769 27.863 6.097 2.086 0.610
Std 40 3.378 26.645 5.576 2.494 0.558
XS 80 4.547 24.307 4.640 3.227 0.464
  160 6.35 20.701 3.366 4.225 0.337
XXS   9.093 15.215 1.818 5.436 0.182
1 1/4 32 5S   42.164 1.651 38.862 11.862 1.645 1.186
10S   2.769 36.626 10.536 2.683 1.054
Std 40 3.556 35.052 9.650 3.377 0.965
XS 80 4.851 32.462 8.276 4.452 0.828
  160 6.35 29.464 6.818 5.594 0.682
XXS   9.703 22.758 4.068 7.747 0.407
1 1/2 40 5S   48.26 1.651 44.958 15.875 1.893 1.587
10S   2.769 42.722 14.335 3.098 1.433
Std 40 3.683 40.894 13.134 4.038 1.313
XS 80 5.08 38.1 11.401 5.395 1.140
  160 7.137 33.986 9.072 7.219 0.907
XXS   10.16 27.94 6.131 9.521 0.613
    13.335 21.59 3.661 11.455 0.366
    15.875 16.51 2.141 12.645 0.214
2 50 5S   60.325 1.651 57.023 25.538 2.383 2.554
10S   2.769 54.787 23.575 3.920 2.357
Std 40 3.912 52.501 21.648 5.428 2.165
XS 80 5.537 49.251 19.051 7.461 1.905
  160 8.712 42.901 14.455 11.059 1.446
XXS   11.074 38.177 11.447 13.415 1.145
    14.275 31.775 7.930 16.168 0.793
    17.45 25.425 5.077 18.402 0.508
2 1/2 65 5S   73.025 2.108 68.809 37.186 3.677 3.719
10S   3.048 66.929 35.182 5.246 3.518
Std 40 5.156 62.713 30.889 8.607 3.089
XS 80 7.01 59.005 27.344 11.382 2.734
  160 9.525 53.975 22.881 14.876 2.288
XXS   14.021 44.983 15.892 20.348 1.589
    17.145 38.735 11.784 23.564 1.178
    20.32 32.385 8.237 26.341 0.824
3 80 5S   88.9 2.108 84.684 56.324 4.5 5.632
10S   3.048 82.804 53.851 6.436 5.385
Std 40 5.486 77.928 47.696 11.255 4.770
XS 80 7.62 73.66 42.614 15.233 4.261
  160 11.1 66.7 34.942 21.240 3.494
XXS   15.24 58.42 26.805 27.610 2.680
    18.415 52.07 21.294 31.925 2.129
    21.59 45.72 16.417 35.743 1.642
3 1/2 90 5S   101.6 2.108 97.384 74.485 5.158 7.448
10S 3.048 95.504 71.636 7.388 7.164
Std 40 5.74 90.12 63.787 13.533 6.379
XS  80 8.077 85.446 57.342 18.579 5.734
XXS   16.154 69.292 37.710 33.949 3.771
4 100 5S   114.3 2.108 110.084 95.179 5.817 9.518
10S   3.048 108.204 91.955 8.340 9.196
    4.775 104.75 86.179 12.863 8.618
Std 40 6.02 102.26 82.130 16.033 8.213
XS 80 8.56 97.18 74.173 22.262 7.417
  120 11.1 92.1 66.621 28.175 6.662
    12.7 88.9 62.072 31.736 6.207
  160 13.487 87.326 59.893 33.442 5.989
XXS   17.12 80.06 50.341 40.920 5.034
    20.32 73.66 42.614 46.970 4.261
    23.495 67.31 35.584 52.474 3.558
5 125 5S   141.3 2.769 135.762 144.76 9.435 14.476
10S   3.404 134.492 142.06 11.545 14.206
Std 40 6.553 128.194 129.07 21.718 12.907
XS 80 9.525 122.25 117.38 30.871 11.738
  120 12.7 115.9 105.50 40.170 10.550
  160 15.875 109.55 94.254 48.973 9.426
XXS   19.05 103.2 83.647 57.280 8.365
    22.225 96.85 73.670 65.091 7.367
    25.4 90.5 64.326 72.406 6.433
6 150 5S   168.275 2.769 162.737 208.00 11.272 20.800
10S   3.404 161.467 204.77 13.804 20.477
    5.563 157.149 193.96 22.263 19.396
Std 40 7.112 154.051 186.39 28.191 18.639
XS 80 10.973 146.329 168.17 42.454 16.817
  120 14.275 139.725 153.33 54.070 15.333
  160 18.237 131.801 136.44 67.300 13.644
XXS   21.946 124.383 121.51 78.985 12.151
    25.4 117.475 108.39 89.258 10.839
    28.575 111.125 96.987 98.184 9.699
8 200 5S   219.075 2.769 213.537 358.13 14.732 35.813
10S   3.759 211.557 351.52 19.907 35.152
    5.563 207.949 339.63 29.217 33.963
  20 6.35 206.375 334.51 33.224 33.451
  30 7.036 205.003 330.07 36.694 33.007
Std 40 8.179 202.717 322.75 42.425 32.275
  60 10.312 198.451 309.31 52.949 30.931
XS 80 12.7 193.675 294.60 64.464 29.460
  100 15.062 188.951 280.41 75.578 28.041
  120 18.237 182.601 261.88 90.086 26.188
  140 20.625 177.825 248.36 100.671 24.836
  160 23.012 173.051 235.20 110.970 23.520
    25.4 168.275 222.40 120.994 22.240
    28.575 161.925 205.93 133.887 20.593
  • 1 cm2 = 10-4 m2 = 0.155 in2
  • 1 kg = 2.2046 lb
  • 1 m = 3.28 ft
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