Criterion I250ETM Reinforcing Mesh
Full Description
I250ETM Reinforcing Mesh
Standard: AS/NZS 4671:2019 — Steel reinforcing materials Designation: I250ETM Product Form: Welded steel mesh (fabric)
Product Description
I250ETM is a deformed indented welded steel mesh with a specified lower characteristic yield stress of 250 MPa, Trench Mesh bar configuration, and Earthquake (seismic) ductility class.
| Designation Component | Code | Meaning |
|---|---|---|
| Profile | I | Deformed indented |
| Strength Grade | 250 | 250 MPa |
| Configuration | TM | Trench Mesh |
| Ductility Class | E | Earthquake (seismic) |
Longitudinal bars only; transverse bars not considered in design; dimensions suit trenches.
Size and Spacing
Unlike bar and coil, mesh designations include bar size and spacing as suffixes — e.g. I250ETM92 means 9 mm bar diameter, 200 mm spacing. However, ACRS certifies at the grade level (I250ETM): the specific sizes and spacings a firm is certified for are listed on the ACRS certificate and recorded in LTQ data.
Certification Scope
ACRS certification for I250ETM mesh confirms that the certified firm's fabrication meets the requirements of AS/NZS 4671:2019 for this grade, including mechanical properties of the parent wire/bar, weld shear strength, dimensional tolerances, and marking requirements.
Applicable Clauses (AS/NZS 4671:2019)
| Clause | Subject |
|---|---|
| §5.4 | Designation of welded mesh |
| §7 | Mechanical properties |
| §8 | Dimensional properties |
| §9 | Weld shear force |
| §10 | Marking |
Certificate Types
| Certificate | Stage | Description |
|---|---|---|
| Non-Producer Certificate | Stage 2 — Fabricating | Firms fabricating I250ETM mesh from certified reinforcing materials 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 I250ETM 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Definition "Certified site permanently closed; certificate no longer valid"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.