Profile Concrete Reinforcing Steels

Version 1.0.0 | Valid From 2026-04-09 | Status ACTIVE

Subject Type Product | Criteria 225

ACRS certification for reinforcing bar, coil, and welded mesh per AS/NZS 4671

Full Description

Concrete Reinforcing Steels

ACRS certification profile for reinforcing steel products manufactured and processed against the applicable Australian, New Zealand, and British standards for concrete reinforcement.

Applicable Standards

Standard	Title
AS/NZS 4671:2001	Steel reinforcing materials
AS/NZS 4671:2019	Steel for the reinforcement of concrete
AS/NZS 4672:2007	Steel prestressing materials
BS 6744:2016	Stainless steel bars — Reinforcement of concrete — Requirements and test methods

Certificate Types

Certificate	Stage	Description
Producer Certificate	Stage 1	Issued to steel mills manufacturing reinforcing materials from raw inputs
Non-Producer Certificate	Stage 2 — Processing	Issued to firms cutting and bending certified reinforcing bar or coil
Non-Producer Certificate	Stage 2 — Fabricating	Issued to firms fabricating welded steel mesh from certified reinforcing materials

Certified Product Forms

ACRS issues separate certification for each product form. A firm may hold certificates for one or more forms.

Reinforcing Bar (Straight Length)

A certified product is the combination of Profile + Strength Grade + Ductility Class.

Designation format: {Profile}{Grade}{Ductility} — e.g. D500N

Component	Code	Meaning
Profile	R	Round
	D	Deformed ribbed
	I	Deformed indented
Strength Grade (MPa)	250	250 MPa
	300	300 MPa
	500	500 MPa
	600	600 MPa
	750	750 MPa
Ductility Class	L	Low
	N	Normal
	E	Earthquake (seismic)

Size (diameter in mm) is not restricted by certification — ACRS certifies the grade combination. Common market sizes are documented per criterion.

Example: D500N — Deformed ribbed, 500 MPa, Normal ductility bar

Reinforcing Coil

Designation format and components are the same as Bar. Certification is issued separately because coil is wound concentrically (single length) rather than supplied in straight lengths.

Example: R250N — Round, 250 MPa, Normal ductility coil

Welded Steel Mesh (Fabric)

A certified product is the combination of Profile + Strength Grade + Configuration + Ductility Class + Size + Spacing.

Designation format: {Profile}{Grade}{Config}{Ductility}{Size}{Spacing} — e.g. D500SL92

Component	Code	Meaning
Profile	R, D, I	As above
Strength Grade (MPa)	250–750	As above
Configuration	S	Square
	R	Rectangle
	(none)	TM — Trench Mesh (longitudinal bars only)
Ductility Class	L, N, E	As above
Size	number	Bar diameter in longitudinal direction (mm)
Spacing	number	Transverse spacing (mm) ÷ 100

For rectangular mesh, a transverse bar diameter suffix is also included.

Examples:

D500SL92 — Deformed, 500 MPa, Square, Low ductility, 9 mm bar, 200 mm spacing

D500SE62 — Deformed, 500 MPa, Square, Earthquake ductility, 6 mm bar, 200 mm spacing

Note: Not all designation combinations exist or are sold in market. Only combinations with demonstrated market presence are included as criteria.

Assessment

ACRS assessors evaluate:

LTQ (Lot Traceability and Quality) data — production records and test results submitted by the firm for each product designation
Quality management system — processes ensuring ongoing conformance
On-site observations — production processes, equipment, and records

The assessment cycle is 3 years (Full Evaluation in Year 1; Surveillance Evaluations in Years 2 and 3).

Assessment Criteria (225)

Reinforcing Bar (45)

Reinforcing Coil (45)

Welded Mesh (Fabric) (135)

Criterion Scoring Framework

Certification status as registered in the ACRS Certificate Register.

Certified

Severity 1
Definition "Valid certificate; all product requirements met"

Non Producer

Severity 2
Definition "Listed as Non-Producer in the register; certificate not active as a producer"

Voluntary Relinquishment

Severity 3
Definition "Certificate voluntarily relinquished by the firm"

Site Closed

Severity 4
Definition "Certified site permanently closed; certificate no longer valid"

Terminated for Non-compliance

Severity 5
Definition "Certificate terminated by ACRS due to non-compliance"

Standard Alignment

Name	Alignment Level
AS/NZS 4671:2001 Steel reinforcing materials	Certifies
AS/NZS 4671:2019 Steel for the reinforcement of concrete	Certifies
AS/NZS 4672:2007 Steel prestressing materials	Certifies
BS 6744:2016 Stainless steel bars — Reinforcement of concrete — Requirements and test methods	Certifies

Scope

Code	Name	Classification
2410	Manufacture of basic iron and steel	ISIC Rev.4
2431	Cold drawing of bars	ISIC Rev.4
2599	Manufacture of other fabricated metal products n.e.c.	ISIC Rev.4

Change Log

1.0.0 (2026-04-09)

Added

Reinforcing bar criteria (D500N-Bar, R250N-Bar, D500E-Bar)
Reinforcing coil criteria (D500N-Coil, R250N-Coil)
Reinforcing mesh criteria (D500SL92, D500SE62, D500NR126)