Criterion D500N Reinforcing Bar
Full Description
D500N Reinforcing Bar
Standard: AS/NZS 4671:2019 — Steel reinforcing materials
Designation: D500N
Product Form: Bar (straight length)
Product Description
D500N is a deformed ribbed reinforcing steel bar with a specified lower characteristic yield stress of 500 MPa and Normal ductility class, supplied in straight lengths.
| Designation Component | Code | Meaning |
|---|---|---|
| Profile | D | Deformed ribbed surface |
| Strength Grade | 500 | 500 MPa yield stress |
| Ductility Class | N | Normal ductility |
The designators are stated in the order: profile, strength grade, ductility class.
Full example: D500N16 — D500N bar with 16 mm assigned diameter
Certification Scope
ACRS certification for D500N Bar confirms that the certified firm's production meets the requirements of AS/NZS 4671:2019 for this designation, including:
- Mechanical property requirements (yield stress, tensile strength, uniform elongation)
- Dimensional requirements (diameter, mass, rib geometry)
- Marking requirements (identification of manufacturer, strength grade, ductility class)
- Traceability requirements (LTQ data)
Common Market Sizes
Certification covers all sizes produced by the firm. Common sizes in the Australian/NZ market include:
10 mm, 12 mm, 16 mm, 20 mm, 24 mm, 28 mm, 32 mm, 36 mm, 40 mm
Note: Not all sizes are available from all producers. The specific sizes certified are listed on the firm's ACRS certificate.
Applicable Clauses (AS/NZS 4671:2019)
| Clause | Subject |
|---|---|
| §5 | Product designation |
| §5.3 | Designation of bar and coil |
| §7 | Mechanical properties |
| §8 | Dimensional properties |
| §10 | Marking |
Certificate Types
This criterion applies to:
| Certificate | Stage | Description |
|---|---|---|
| Producer Certificate | Stage 1 | Steel mills rolling D500N bar from steel inputs |
| Non-Producer Certificate | Stage 2 | Processors cutting or bending D500N bar made by a Producer |
Profiles using this criterion
ACRS Product Certification
- Concrete Reinforcing Steels | 1.0.0
Conformity Alignment
Certified
Pass Yes
Definition "All AS/NZS 4671 requirements met for D500N grade"
Non Producer
Pass No
Definition "Non-Producer Certificate active; requirements met for processing/fabricating"
Voluntary Relinquishment
Pass No
Definition "Certificate voluntarily relinquished by the firm"
Site Closed
Pass No
Definition "Certified site permanently closed; certificate no longer valid"
Terminated Non Compliance
Pass No
Definition "Certificate terminated by ACRS due to non-compliance"
Change Log
1.0.0 (2026-04-09)
Initial release.