prBAS ISO 657-1:2027
Hot-rolled steel sections — Dimensions, sectional properties and tolerances — Part 1: Angles, sloping flange channels and sloping flange beams
General information
Status:Project
Number of pages:28
Adoption method:Korice
Language:engleski
Edition:2.
Realization date:24.09.2026
Forseen date for next stage code:05.10.2026
Technical committee:BAS/TC 4, Steel, steel products, non-ferrous metals and alloys
ICS:
77.140.70, Steel profiles
Abstract
This document specifies requirements for dimensions, sectional properties and tolerances for hot-rolled sections as follows:
equal angle LE (L section);
unequal angle LU (L section);
sloping flange channel US (U section);
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.
Lifecycle
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Original document and degree of correspondence
ISO 657-1:2026, identical
Relation to BAS standards
Work material
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