Structural Reinforcing Bar
ASTM A615 Grade 60 — 10 to 32mm diameter — Documented quality at every bundle.
ASTM A615 Grade 60 — 10 to 32mm diameter — Documented quality at every bundle.
The primary product of Star Steel is structural reinforcing bar (rebar) — the structural backbone of modern construction. Designed to provide strength and ductility, our rebar forms the foundation of safety and durability in buildings, bridges, roads and industrial structures.
Our production process is not limited to supplying steel — it represents a full commitment to supporting the construction sector through reliable solutions. From precise raw material selection, through exacting manufacturing operations, to a finished product that reflects the highest international quality standards.
Star Steel rebar is manufactured to the mechanical requirements specified in ASTM A615/A615M — Grade 60, ensuring optimal performance in terms of tensile strength, yield stress and elongation.
The following data is extracted from a representative Star Steel rebar test certificate (Size: 20mm, Ref. No: 443, Date: 15/11/2025):
| Property | Symbol | Test Result | Min. Required | Status |
|---|---|---|---|---|
| Cross Section | A (mm²) | 305.7 | — | — |
| Unit Weight | kg/m | 2.400 | — | — |
| Yield Strength | Fy (N/mm²) | 581.0 | 550 | ✅ Pass |
| Tensile Strength | Fu (N/mm²) | 698.0 | 620 | ✅ Pass |
| Fu / Fy Ratio | Ts/Ys | 1.20 | ≥ 1.08 | ✅ Pass |
| Total Elongation | % | 21 | 9 (at 200mm) | ✅ Pass |
| Bend Test | — | Pass | No cracks at 180° | ✅ Pass |
| Rib Height | mm | 1.3 | — | — |
| Relative Rib Area | Avg. | 0.091 | — | — |
Chemical composition per ISO 6935 — weight % for a 20mm size bar (Ref. No. 443):
| C | Mn | Si | Cr | Ni | Al | P | S | Cu | N | Ceq |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.22 | 0.80 | 0.25 | 0.09 | 0.07 | 0.003 | 0.03 | 0.04 | 0.12 | 0.010 | 0.38 |
All values in % by weight. Test reports for each batch are available upon request and can be included in project quality files.
Star Steel provides comprehensive traceability from heat number to final bundle — ensuring full transparency throughout the supply chain. Each bundle is equipped with a complete data tag including:
Optionally, a QR code or Data Matrix can be added for direct linking with inspection data and technical specification sheets.
Star Steel is committed to supplying structural reinforcing bars that meet the highest international standards. The specifications below highlight the key characteristics of our products.