

ASTM A53 ERW steel pipe is formed by rolling strip and welding the seam, with precise dimension and light weight. It can be used for water, steam and air conveyance. It is also weldable and can be used in structural applications.
| Size | Thickness (mm) | Test pressure (MPa) | Ref. No. |
| 1/2″ / DN15 / 21.3mm | 2.11 | 4.8 | P0101 (ISO) |
| 3/4″ / DN20 / 26.7mm | 2.11 | 4.8 | P0102 (ISO) |
| 1″ / DN25 / 33.4mm | 2.77 | 4.8 | P0103 (ISO) |
| 1-1/4″ / DN32 / 42.2mm | 2.77 | 9 | P0104 (ISO) |
| 1-1/2″ / DN40 / 48.3mm | 2.77 | 9 | P0105 (ISO) |
| 2″ / DN50 / 60.3mm | 2.77 | 13.2 | P0106 (ISO) |
| 2-1/2″ / DN65 / 73.0mm | 3.05 | 12 | P0107 (ISO) |
| 3″ / DN80 / 88.9mm | 3.05 | 9.9 | P0108 (ISO) |
| 4″ / DN100 / 114.3mm | 3.05 | 7.7 | P0109 (ISO) |
| 5″ / DN125 / 141.3mm | 3.4 | 6.9 | P0110 (ISO) |
| 6″ / DN150 / 168.3mm | 3.4 | 5.8 | P0111 (ISO) |
| 8″ / DN200 / 219.1mm | 3.76 | 4.9 | P0112 (ISO) |
| 10″ / DN250 / 273.0mm | 4.19 | 4.4 | P0113 (ISO) |
| 12″ / DN300 / 323.8mm | 4.57 | 4.1 | P0114 (ISO) |
| 14″ / DN350 / 355.6mm | 6.35 | 5.2 | P0115 (ISO) |
| 16″ / DN400 / 406.4mm | 6.35 | 4.6 | P0116 (ISO) |
| 18″ / DN450 / 457.0mm | 6.35 | 4 | P0117 (ISO) |
| 20″ / DN500 / 508.0mm | 6.35 | 3.6 | P0118 (ISO) |
| 24″ / DN600 / 610.0mm | 6.35 | 3 | P0119 (ISO) |