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A790 Duplex & Super Duplex Seamless Pipe

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  • Duplex and Superduplex Stainless Steel pipes are manufactured to ASTM A790 (Seamless) and ASTM A928 Class 1 (Welded/EFW)
  • Available in grades Duplex UNS S31803/32205 and UNS SS32750
  • Dimensions according to ASME/ANSI B36.10 and B36.19
  • ASTM A928 Class 1 only available from 8” onwards (Only in Duplex UNS S31803/32205 SCH10S and SCH40S)
  • Fixed lengths of 6 metres for Seamless except for certain sizes. Fixed lengths of 5.8 metres for Welded
Weights are based on theoretical calculations. Actual weight may vary.
● IN STOCK
Schedule - Nominal Bore
Size
A790 Seamless
Weight
  Inch (NPS) mm (DN) O.D. W.T. I.D UNS S31803 / S32205 UNS S32750 kg/m
S10 S 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
  1¼ 32 42.2 2.77 36.66 ●   2.76
  1½ 40 48.3 2.77 42.76 ● ● 3.17
  2 50 60.3 2.77 54.76 ● ● 4.01
  2½ 65 73 3.05 66.90 ●   5.36
  3 80 88.9 3.05 82.80 ● ● 6.59
  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
S40 S/STD 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 26.64 ● ● 2.55
  1¼ 32 42.2 3.56 35.08 ● ● 3.46
  1½ 40 48.3 3.68 40.94 ● ● 4.13
  2 50 60.3 3.91 52.48 ● ● 5.54
  2½ 65 73 5.16 62.68 ● ● 8.81
  3 80 88.9 5.49 77.92 ● ● 11.52
  3½ 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
S80 S/XS 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
  1¼ 32 42.2 4.85 32.50 ● ● 3.46
  1½ 40 48.3 5.08 38.14 ● ● 4.13
  2 50 60.3 5.54 49.22 ● ● 5.54
  2½ 65 75 7.01 58.98 ● ● 8.81
  3 80 88.9 7.62 73.66 ● ● 11.52
  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 14 350 355.6 19.05 317.50 ●   158.10
S160 1 25 33.4 6.35 20.70 ●   4.24
  1¼ 32 42.2 6.35 29.50     5.61
  1½ 40 48.3 7.14 34.02 ●   7.25
  2 50 60.3 8.74 42.82 ●   11.11
  2½ 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 1 25 33.4 9.09 15.22 ●   5.45
  1¼ 32 42.2 9.70 22.80 ●   7.77
  1½ 40 48.3 10.15 28.00 ●   9.56
  2 50 60.3 11.07 38.16 ●   13.44
  2½ 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
  8 200 219.1 22.23 174.64     107.92

A790 Duplex & Super Duplex Seamless Pipe

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