Steel cross-section classification to Eurocode 3.

Enter the section and the action (bending, compression or combined), and Volex Anvil classifies each element — the outstand flange and the internal web — against the EC3 Table 5.2 slenderness limits, and reports the governing cross-section class (1 plastic, 2 compact, 3 semi-compact, or 4 slender).

The class decides whether plastic, elastic or effective-section properties apply, so it is the first step in any steel check; the classification matches the SCI P363 Blue Book.