A234 WPB general service, A420 WPL6 low-temperature (−46°C), and A420 WPL3 sub-zero service (−101°C). All grades available with EN 10204 3.1 certificates and EN equivalent cross-reference.
General-purpose carbon steel. −29°C to 400°C. Most common grade globally.
Low-temperature carbon steel. Charpy impact tested at −46°C. LPG, ethylene, cold service.
Sub-zero carbon steel. Charpy tested at −101°C. LNG, cryogenic storage, cold gas service.
| Grade | Standard | Min YS (MPa) | Min TS (MPa) | Impact Test Temp | EN Equivalent |
|---|---|---|---|---|---|
| WPB | ASTM A234 | 240 | 415 | Not required (MDMT −29°C) | P235GH / 1.0345 |
| WPL6 | ASTM A420 | 240 | 415 | −46°C · 27 J avg | P215NL / 1.0473 |
| WPL3 | ASTM A420 | 275 | 450 | −101°C · 27 J avg | P355NL1 / 1.0566 |
WPB, WPL6, WPL3 in all sizes NPS ½" to 48". EN 10204 3.1 standard. Charpy certificates included for WPL grades.
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