IACS UR W27 - Welding Consumables Grade
Minimum welding-consumable grade (1Y, 2Y, 3Y, 4Y, 5Y) required to match a parent-steel grade per IACS UR W27 - the rule used by every class for procurement and WPS qualification.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Yield strength series (1/2/3/4/5) | ||
| Charpy impact-test temperature | °C |
Source: IACS UR W27 Rev.3
In short
Minimum welding-consumable grade (1Y, 2Y, 3Y, 4Y, 5Y) required to match a parent-steel grade per IACS UR W27 - the rule used by every class for procurement and WPS qualification.