ISO 10544-2024 PDF

Full title and description

ISO 10544:2024 — Cold-reduced steel wire for the reinforcement of concrete and the manufacture of welded fabric. This International Standard specifies technical delivery requirements and associated test methods for cold‑reduced steel wire intended for use as reinforcement in concrete or for manufacture of welded fabric.

Abstract

ISO 10544:2024 defines product grades, dimensional and mechanical requirements, surface and geometry characteristics (including ribbed and indented profiles where applicable), testing and conformity rules for cold‑reduced steel wire used in reinforced concrete and welded fabric manufacture. The 2024 revision updates and replaces the 1992 edition and gives example steel grades CRB500 and CRB540H while allowing other grades by agreement between supplier and purchaser.

General information

• Status: Published.
• Publication date: 15 January 2024 (Edition 2, published 2024‑01‑15).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.140.15 (Steels for reinforcement of concrete).
• Edition / version: Edition 2 (2024).
• Number of pages: 16 pages.

Scope

This document specifies technical requirements for cold‑reduced steel wire designed for the reinforcement of concrete or for use in welded fabric. It applies to wire produced from rod by working through dies or rollers; for wire supplied in coil form the requirements apply to the straightened product. Wires produced from finished products (for example from plates or railway rails) are excluded. Two example steel grades (CRB500 and CRB540H) are given; other grades may be used by agreement between supplier and purchaser. Normative references include ISO 15630‑1, ISO 404 and ISO 6892‑1 for test and delivery requirements.

Key topics and requirements

• Product definition and scope (wire for reinforcement and welded fabric; production from rod through dies/rollers).
• Steel grades (examples: CRB500 and CRB540H) and options for other agreed grades.
• Dimensional requirements: nominal diameters, tolerances, masses and permitted deviations for supplied wire and straightened coil product.
• Geometry and surface characteristics (plain, ribbed or indented profiles appropriate for bonding to concrete).
• Chemical composition and mechanical properties (tensile testing, strength classes and elongation/ductility requirements).
• Required test methods and normative references (e.g., ISO 15630‑1 test procedures, ISO 6892‑1 tensile testing at room temperature).
• Designation, marking, packaging, certification, inspection and conformity assessment provisions.

Typical use and users

Used by steel wire manufacturers, suppliers of reinforcement products, fabricators of welded fabric, structural and civil engineers, construction contractors, procurement/specification engineers and testing laboratories. Typical applications include reinforcement for concrete elements, welded fabric production for slabs, precast units and other reinforced concrete products where cold‑reduced wire is specified.

Related standards

Relevant ISO standards and test methods referenced or typically used with ISO 10544: ISO 15630‑1 (test methods — reinforcing bars, rods and wire), ISO 404 (general technical delivery requirements for steel and steel products), ISO 6892‑1 (tensile testing of metallic materials). ISO 10544 is also associated with other reinforcement standards such as ISO 6935 (steel for the reinforcement of concrete — welded fabric and bars).

Keywords

cold‑reduced steel wire; reinforcement; welded fabric; CRB500; CRB540H; wire dimensions; tensile test; ISO 10544; concrete reinforcement; marking; inspection.

FAQ

Q: What is this standard?

A: ISO 10544:2024 is an international standard that specifies technical requirements and test methods for cold‑reduced steel wire intended for reinforcement of concrete and for manufacture of welded fabric.

Q: What does it cover?

A: It covers product definition, example steel grades (CRB500 and CRB540H), dimensional and mass tolerances, geometry (including ribbed/indented profiles), chemical and mechanical requirements, test methods, marking, packaging and inspection rules for wire produced from rod by drawing or rolling. Wires made from finished products (plates, rails) are excluded.

Q: Who typically uses it?

A: Steel wire and welded‑fabric manufacturers, construction material specifiers, engineers, contractors, procurement teams and testing laboratories involved with reinforced‑concrete products.

Q: Is it current or superseded?

A: Current — ISO 10544:2024 is the active edition (Edition 2, published 15 January 2024), which revises and replaces ISO 10544:1992.

Q: Is it part of a series?

A: It is part of the suite of ISO standards for steel and reinforcement for concrete (for example ISO 15630 series for test methods and ISO 6935 for welded fabric and bars) and is maintained by ISO/TC 17/SC 16 (steels for reinforcement and prestressing of concrete).

Q: What are the key keywords?

A: Cold‑reduced wire, concrete reinforcement, welded fabric, CRB500, CRB540H, dimensions, tensile test, marking, inspection.