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Deformed Steel Bars for Construction - Mill Direct Supplier
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Deformed Steel Bars for Construction
| Property | Parameter | Description |
|---|---|---|
| Product Name | Deformed Steel Bars for Construction | Hot-rolled ribbed reinforcing bars with transverse and longitudinal ribs for enhanced concrete bonding |
| Material Grade | HRB400 / HRB500 / Grade 60 / B500B | Equivalent to ASTM A615 Gr.60, EN 10080 B500B, BS 4449 Grade 500B, GB/T 1499.2 HRB400/500 |
| Standard Compliance | ASTM A615 / EN 10080 / GB/T 1499.2 / BS 4449 / JIS G3112 | Meets international construction reinforcement standards for structural concrete applications |
| Chemical Composition – Carbon (C) | ≤ 0.25% | Controls hardness and weldability; lower carbon improves field welding performance |
| Chemical Composition – Manganese (Mn) | 0.60% – 1.60% | Enhances tensile strength and hardenability of the rebar |
| Chemical Composition – Silicon (Si) | 0.10% – 0.80% | Acts as deoxidizer; contributes to strength improvement |
| Chemical Composition – Phosphorus (P) | ≤ 0.045% | Strictly controlled to prevent cold brittleness in finished bars |
| Chemical Composition – Sulfur (S) | ≤ 0.045% | Controlled to avoid hot shortness and reduce ductility loss |
| Tensile Strength | 570 – 750 MPa | HRB400: ≥ 570 MPa; HRB500: ≥ 630 MPa; ASTM A615 Gr.60: ≥ 620 MPa (per respective standards) |
| Yield Strength | 400 – 500 MPa | HRB400: ≥ 400 MPa; HRB500: ≥ 500 MPa; ASTM Gr.60: ≥ 420 MPa |
| Elongation | ≥ 14% – 16% | Minimum elongation at fracture; ensures ductility for seismic and structural applications |
| Diameter Range | 6 mm – 50 mm | Common sizes: 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40, 50 mm |
| Length | 6 m / 9 m / 12 m or custom | Standard mill lengths; custom cutting available per project requirement |
| Surface Finish | Hot-rolled deformed (ribbed) surface | Transverse ribs and longitudinal ribs improve mechanical bond with concrete; mill scale finish |
| Application | Reinforced concrete structures | Foundations, beams, columns, slabs, bridges, tunnels, high-rise buildings, infrastructure projects |
| Certification | ISO 9001 / CE Marking / Mill Test Certificate (MTC) | Third-party inspection available; SGS, BV, TÜV reports upon request |
| Packaging | Bundled in hexagonal bundles, 2–5 MT per bundle | Steel wire tied; seaworthy export packing available; bare or with waterproof wrapping |
| MOQ | 25 MT per size | Mixed container orders accepted; full container load (FCL) preferred for export shipments |
Deformed Steel Bars for Construction - Mill Direct Supplier
Deformed steel bars for construction serve as the structural backbone of modern infrastructure, providing the tensile reinforcement that concrete alone cannot deliver. From high-rise residential towers and commercial complexes to bridges, tunnels, and retaining walls, these ribbed bars bond mechanically with concrete to form reinforced concrete (RC) structures capable of withstanding extraordinary loads. As a mill-direct supplier, we eliminate intermediary markups and deliver certified rebar stock to project sites across Asia, the Middle East, Africa, and beyond. Our production lines operate under rigorous quality management systems aligned with ASTM A615, BS 4449, and GB/T 1499.2 standards, ensuring every bundle shipped meets or exceeds the mechanical and chemical requirements specified by your structural engineers. Whether your project demands Grade 40, Grade 60, or high-strength Grade 75 material, our inventory spans diameters from 6 mm through 50 mm, with customizable lengths up to 12 meters. Partnering directly with the mill means faster lead times, traceable mill test reports, and pricing structures that protect your project budget from volatile spot-market fluctuations.
What is Deformed Steel Bars for Construction?
Deformed steel bars for construction — commonly called rebar or reinforcing bar — are hot-rolled steel rods featuring transverse ribs, lugs, and surface deformations rolled onto their surface during production. These geometric profiles dramatically increase the mechanical interlock between the bar and surrounding concrete, preventing slip under tensile, shear, and seismic loading. Available in carbon steel and low-alloy compositions, deformed bars are the globally preferred reinforcement solution wherever reinforced or pre-stressed concrete is specified.
Deformed Steel Bars for Construction Manufacturing Process
Production begins with continuous casting of billets from electric arc furnace (EAF) or basic oxygen furnace (BOF) steelmaking routes, ensuring precise carbon (0.25%–0.30%), manganese (0.80%–1.20%), and silicon chemistry. Billets are reheated to approximately 1,150 °C and passed through a tandem rolling mill where successive stands progressively reduce cross-section and imprint the characteristic rib pattern. Controlled cooling on the cooling bed governs final microstructure, delivering yield strengths of 420–520 MPa and ultimate tensile strengths of 620–750 MPa depending on grade. Each heat undergoes third-party chemical and mechanical testing before release.
Deformed Steel Bars for Construction Technical Specifications
Our standard product range covers the following verified parameters:
- Diameter range: 6 mm – 50 mm (nominal)
- Length: 6 m, 9 m, 12 m (custom cut-to-length available)
- Yield strength: 300 MPa (Grade 40) / 420 MPa (Grade 60) / 520 MPa (Grade 75)
- Tensile strength: 500 MPa minimum (Grade 40) / 620 MPa minimum (Grade 60)
- Elongation: ≥ 9% (Grade 60, ASTM A615)
- Density: 7.85 g/cm³ at 20 °C
- Applicable standards: ASTM A615 / A706, BS 4449:2005+A3, GB/T 1499.2-2018, JIS G3112
- Surface condition: Hot-rolled deformed rib profile; mill scale finish
- Packing: Hexagonal bundle, 2–5 MT per bundle, steel-strapped with heat and grade tags
All shipments are accompanied by original mill test certificates (MTC) documenting heat number, chemical composition, and mechanical test results, fully traceable to the production cast.
Get a Competitive Quote for Deformed Steel Bars for Construction
Ready to secure mill-direct pricing for your next project? Our team of technical sales engineers will review your specifications, confirm standard compliance, and deliver a detailed quotation — including freight options and lead time — within 24 hours of inquiry. Bulk and long-term contract orders benefit from preferential mill-direct rates and priority scheduling.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
