ISO 657-1:2026

OVERVIEW

This document specifies requirements for dimensions, sectional properties and tolerances for hot-rolled sections as follows:

1. equal angle LE (L section);
2. unequal angle LU (L section);
3. sloping flange channel US (U section);
4. sloping flange I beam IS(I section).

This document is used together with technical delivery conditions especially, but is not limited, ISO 630-1, ISO 630-2, ISO 630-3, ISO 630-5 and ISO 630-6.

COMMENTS

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