A790 Duplex & Super Duplex Seamless Pipe


  • 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
  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
  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
  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
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
  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 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
  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 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
  8 200 219.1 22.23 174.64     107.92

A790 Duplex & Super Duplex Seamless Pipe

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