ISO 630-1:2021
Structural steels — Part 1: General technical delivery conditions for hot-rolled products

Standard No.

ISO 630-1:2021

Release Date

2021

Published By

International Organization for Standardization (ISO)

Latest

ISO 630-1:2021

Scope

This document specifies the general technical delivery conditions for steel flat and long products (plates/ sections/wide flats and bars) used principally for general-purpose structural steels. The steels specified in this document are intended for use in welded or bolted structures. The specific requirements for structural steels are given in the individual parts of ISO 630. This document does not include the following structural steels, some of which are covered by other International Standards: — sheet and strip: refer to ISO TC 17/SC 12 “Continuous mill flat rolled products”; — tubular products: refer to ISO TC 5/SC 1 “Steel tubes”. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.

ISO 630-1:2021 Referenced Document

• ISO 10474 Steel and steel products - Inspection documents
• ISO 14284 Steel and iron — Sampling and preparation of samples for the determination of chemical composition*， 2022-10-25 Update
• ISO 148-1 Metallic materials - Charpy pendulum impact test - Part 1: Test method
• ISO 17577 Steel - Ultrasonic testing of steel flat products of thickness equal to or greater than 6 mm
• ISO 20723 Structural steels - Surface condition of hot-rolled sections - Delivery requirements
• ISO 2566-1 Steel — Conversion of elongation values — Part 1: Carbon and low-alloy steels*， 2021-12-15 Update
• ISO 377 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing
• ISO 404 Steel and steel products — General technical delivery requirements — Amendment 1*， 2022-11-01 Update
• ISO 4885 Ferrous materials - Heat treatments - Vocabulary
• ISO 4948-1 Steels; Classification; Part 1 : Classification of steels into unalloyed and alloy steels based on chemical composition
• ISO 4948-2 Steels; Classification; Part 2 : Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristics
• ISO 630-2 Structural steels - Part 2: Technical delivery conditions for structural steels for general purposes
• ISO 630-3 Structural steels — Part 3: Technical delivery conditions for fine-grain structural steels
• ISO 630-4 Structural steels - Part 4: Technical delivery conditions for high yield strength quenched and tempered structural steel plates and wide flats
• ISO 630-5 Structural steels — Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance*， 2023-12-05 Update
• ISO 630-6 Structural steels — Part 6: Technical delivery conditions for seismic-proof improved structural steels for building*， 2023-10-01 Update
• ISO 6892-1 Metallic materials — Tensile testing — Part 1: Method of test at room temperature
• ISO 6929 Steel products.Vocabulary
• ISO 7778 Through-thickness characteristics for steel products
• ISO 7788 Steel - Surface finish of hot-rolled plates and wide flats - Delivery requirements*， 2021-09-30 Update
• ISO 9034 Hot-rolled structural steel wide flats; Tolerances on dimensions and shape
• ISO 9443 Surface quality classes for hot-rolled bars and wire rod
• ISO/TS 4949 Steel names based on letter symbols

ISO 630-1:2021 history

• 2021 ISO 630-1:2021 Structural steels — Part 1: General technical delivery conditions for hot-rolled products
• 2011 ISO 630-1:2011 Structural steels - Part 1: General technical delivery conditions for hot-rolled products