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Steel Grade Selection (IACS UR W11)

Minimum steel grade by plate thickness and structural category (primary / secondary / tertiary) per IACS UR W11.

StructuralIACS W11
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Formula, assumptions, and limits

Grade=f(thickness,category)\text{Grade} = f(\text{thickness}, \text{category})
SymbolMeaningUnit
A/B/D/EA / B / D / ECharpy test temperatures

Source: IACS UR W11 - Normal and higher-strength hull steels

In short

Minimum steel grade by plate thickness and structural category (primary / secondary / tertiary) per IACS UR W11.

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