A312 Seamless Pipes


  • Stainless Steel pipes are manufactured to ASTM A312 (Seamless)
  • Available in grades 304/304L and 316/316L
  • Fixed lengths of 6 metres except for certain sizes
  • Dimensions according to ASME/ANSI B36.10 and B36.19
Weights are based on theoretical calculations. Actual weight may vary.
● IN STOCK
Schedule - Nominal Bore
Size
A312 Seamless
Weight
  Inch (NPS) mm (DN) O.D. W.T. I.D 304/304L 316/316L kg/m
S10 S 6 10.3 1.24 7.82     0.28
  ¼ 8 13.7 1.65 10.40     0.48
  10 17.1 1.65 13.80 0.64
  ½ 15 21.3 2.11 17.08 1.01
  ¾ 20 26.7 2.11 22.48 1.31
  1 25 33.4 2.77 27.86 2.13
  32 42.2 2.77 36.66 2.76
  40 48.3 2.77 42.76 3.17
  2 50 60.3 2.77 54.76 4.01
  65 73 3.05 66.90 5.36
  3 80 88.9 3.05 82.80 6.59
  90 101.6 3.05 95.50   7.55
  4 100 114.3 3.05 108.20 8.52
  5 125 141.3 3.40 134.50 11.82
  6 150 168.3 3.40 161.50 14.13
  8 200 219.1 3.76 211.58 20.37
  10 250 273.1 4.19 264.72 28.34
  12 300 323.9 4.57 314.76 36.73
  14 350 355.6 4.78 346.04   42.14
S40 S/STD 6 10.3 1.73 6.84   0.36
  ¼ 8 1.7 2.24 9.22 0.64
  10 17.1 2.31 12.48 0.86
  ½ 15 21.3 2.77 15.76 1.30
  ¾ 20 26.7 2.87 20.96 1.71
    1 25 33.4 3.38 2.55
  32 42.2 3.56 35.08 3.46
  40 48.3 3.68 40.94 4.13
  2 50 60.3 3.91 52.48 5.54
  65 73 5.16 62.68 8.81
  3 80 88.9 5.49 77.92 11.52
  90 101.6 5.74 90.12 13.84
  4 100 114.3 6.02 102.26 16.40
  5 125 141.3 6.55 128.20 22.20
  6 150 168.3 7.11 154.08 28.83
  8 200 219.1 8.18 202.74 43.39
  10 250 273.1 9.27 254.56 61.52
  12 300 323.9 9.53 304.84 75.32
S40 12 300 323.9 10.31 303.28   79.73
  14 350 355.6 11.13 333.34 94.55
  16 400 406.4 12.70 381.00   123.30
S80 S/XS 6 10.3 2.41 5.48   0.36
  ¼ 8 13.7 3.02 7.66 0.64
  10 17.1 3.20 10.70 0.86
  ½ 15 21.3 3.73 13.84 1.30
  ¾ 20 26.7 3.91 18.88 1.71
  1 25 33.4 4.55 24.30 2.55
  32 42.2 4.85 32.50 3.46
  40 48.3 5.08 38.14 4.13
  2 50 60.3 5.54 49.22 5.54
  65 73 7.01 58.98 8.81
  3 80 88.9 7.62 73.66 11.52
  90 101.6 8.08 85.44   13.84
  4 100 114.3 8.56 97.18 16.40
  5 125 141.3 9.53 122.24 22.20
  6 150 168.3 10.97 146.36 28.83
  8 200 219.1 12.70 193.70 43.39
  10 250 273.1 12.70 247.70 61.52
  12 300 323.9 12.70 298.50 75.32
S80 10 250 273.1 15.09 242.92   96.01
  12 300 323.9 17.48 288.94   132.08
  14 350 355.6 19.05 317.50   158.10
  16 400 406.4 21.44 363.52   203.53
S120 4 100 114.3 11.13 92.04   28.32
  5 125 141.3 12.70 115.90   40.28
  6 150 168.3 14.27 139.76   54.20
  8 200 219.1 18.26 182.58   90.44
S160 ½ 15 21.3 4.78 11.74 1.95
  ¾ 20 26.7 5.56 15.58 2.90
  1 25 33.4 6.35 20.70 4.24
  32 42.2 6.35 29.50 5.61
  40 48.3 7.14 34.02 7.25
  2 50 60.3 8.74 42.82 11.11
  65 73 9.53 53.94 14.92
  3 80 88.9 11.13 66.64 21.35
  4 100 114.3 13.49 87.32 33.54
  5 125 141.3 15.88 109.54 49.11
  6 150 168.3 18.26 131.78 67.56
  8 200 219.1 23.01 173.08   111.27
SXXS ½ 15 21.3 7.47 6.36   2.55
  ¾ 20 26.7 7.82 11.06   3.64
  1 25 33.4 9.09 15.22   5.45
  32 42.2 9.70 22.80   7.77
  40 48.3 10.15 28.00   9.56
  2 50 60.3 11.07 38.16   13.44
  65 73 14.02 44.96   20.39
  3 80 88.9 15.24 58.42   27.68
  4 100 114.3 17.12 80.06   41.03
  5 125 141.3 19.05 103.20   57.43
  6 150 168.3 21.95 124.40   79.22

A312 Seamless Pipes

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