British Standards Institution

Source:: ISO
Committee:: ISE/103 - Structural Steels Other Than Reinforcements
Categories:: Steels. Profiles
Comment period start date:: 27/06/2025
Comment period end date:: 20/08/2025
Number of comments:: 0

Comment by:

20th Aug

Scope

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

a) equal angle LE (L section);

b) unequal angle LU (L section);

c) sloping flange channel US (U section);

d) sloping flange I beam IS(I section).

This document applies to, but is not limited to, steel grades defined in all parts of ISO 630.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

08/04/2025

3. Public Comments

Public Comments start date:

27/06/2025

Public Comments end date:

20/08/2025

Learn more about the standards development process

Standards Development

BS ISO 657-1 ISO 657-1 Hot-rolled steel sections. Dimensions, sectional properties and tolerances. Part 1: Angles, channels and beams

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