ISO 1035:2026 - Hot-rolled steel bars — Dimensions, shape, masses and tolerances

Published (Edition 1, 2026)

ISO 1035:2026

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Abstract

This document specifies dimensions, shape, mass and tolerances of metric series hot-rolled steel bars.

This document is applicable to:

hot-rolled round bars with diameter of 5,5 mm up to 400 mm;
hot-rolled square bars with side length of 5,5 mm up to 300 mm;
hot-rolled flat bars with thickness of 3 mm up to 60 mm and width of 10 mm up to 200 mm;
hot-rolled hexagonal bars with distance across opposite flats of 8 mm up to 70 mm;
hot-rolled octagonal bars with distance across opposite flats of 16 mm up to 40 mm.

NOTE Wide flats can be covered under flat bars for practical reasons.

General information

Status
: Published

Publication date
: 2026-05

Stage
: International Standard published [60.60]
Edition
: 1

Number of pages
: 19
Technical Committee :
ISO/TC 17/SC 3

ICS :
77.140.60
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Life cycle

This standard contributes to the following Sustainable Development Goal

Industry, Innovation and Infrastructure

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