Seamless steel tube (SMLS) is formed by drawing a solid billet over a piercing rod to create the hollow shell, without welding or seam. It is suitable for bending and cutting. The advantage of seamless steel is the ability of withstanding higher pressure.
EN10216-1 specification covers normal non-alloy seamless steel tube for pressure with specified room temperature properties. It is mainly used as boiler water tube, smoke tube, firefighting pipeline, etc.
Available size for Standard wall (Equivalent to Sch40 of ASME B36.10)
| Size | Thickness (mm) | Test pressure (MPa) | Ref. No. |
|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 2.9 | 7 | P1501 |
| 3/4″ / DN20 / 26.9mm | 2.9 | 7 | P1502 |
| 1″ / DN25 / 33.7mm | 3.2 | 7 | P1503 |
| 1-1/4″ / DN32 / 42.4mm | 3.6 | 7 | P1504 |
| 1-1/2″ / DN40 / 48.3mm | 3.6 | 7 | P1505 |
| 2″ / DN50 / 60.3mm | 4 | 7 | P1506 |
| 2-1/2″ / DN65 / 76.1mm | 5 | 7 | P1507 |
| 3″ / DN80 / 88.9mm | 5.6 | 7 | P1508 |
| 4″ / DN100 / 114.3mm | 6.3 | 7 | P1509 |
| 5″ / DN125 / 139.7mm | 6.3 | 7 | P1510 |
| 6″ / DN150 / 168.3mm | 7.1 | 7 | P1511 |
| 8″ / DN200 / 219.1mm | 8 | 7 | P1512 |
| 10″ / DN250 / 273.0mm | 8.8 | 7 | P1513 |
| 12″ / DN300 / 323.9mm | 10 | 7 | P1514 |
| 14″ / DN350 / 355.6mm | 11 | 7 | P1515 |
Available size for extra-strong wall (Equivalent to Sch80 of ASME B36.10)
| Size | Thickness (mm) | Test pressure (MPa) | Ref. No. |
|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 3.6 | 7 | P1521 |
| 3/4″ / DN20 / 26.9mm | 4 | 7 | P1522 |
| 1″ / DN25 / 33.7mm | 4.5 | 7 | P1523 |
| 1-1/4″ / DN32 / 42.4mm | 5 | 7 | P1524 |
| 1-1/2″ / DN40 / 48.3mm | 5 | 7 | P1525 |
| 2″ / DN50 / 60.3mm | 5.6 | 7 | P1526 |
| 2-1/2″ / DN65 / 76.1mm | 7.1 | 7 | P1527 |
| 3″ / DN80 / 88.9mm | 8 | 7 | P1528 |
| 4″ / DN100 / 114.3mm | 8.8 | 7 | P1529 |
| 5″ / DN125 / 139.7mm | 10 | 7 | P1530 |
| 6″ / DN150 / 168.3mm | 11 | 7 | P1531 |
| 8″ / DN200 / 219.1mm | 12.5 | 7 | P1532 |
| 10″ / DN250 / 273.0mm | 16 | 7 | P1533 |
| 12″ / DN300 / 323.9mm | 17.5 | 7 | P1534 |
| 14″ / DN350 / 355.6mm | 20 | 7 | P1535 |
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