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HRB400 HRB500 Steel Rebar - GB Certified Manufacturer
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 HRB400 HRB500 Steel Rebar
| Property | Parameter | Description |
|---|---|---|
| Product Name | HRB400 / HRB500 Deformed Steel Rebar | Hot-rolled ribbed reinforcement bar for concrete structures |
| Material Grade | HRB400 / HRB500 (GB/T 1499.2) | Equivalent to ASTM A615 Gr.60, BS4449 B500B, ISO 6935-2 |
| Standard Compliance | GB/T 1499.2-2018, ASTM A615, EN 10080, BS 4449 | Meets Chinese national standard and major international specifications |
| Carbon Content (C) | ≤ 0.25% (HRB400) / ≤ 0.25% (HRB500) | Low carbon content ensures good weldability |
| Manganese (Mn) | ≤ 1.60% | Enhances strength and hardenability |
| Silicon (Si) | ≤ 0.80% | Improves deoxidation and strength |
| Phosphorus (P) | ≤ 0.045% | Controlled to prevent brittleness |
| Sulfur (S) | ≤ 0.045% | Controlled to ensure toughness |
| Yield Strength (ReL) | ≥ 400 MPa (HRB400) / ≥ 500 MPa (HRB500) | Minimum yield strength per GB/T 1499.2-2018 |
| Tensile Strength (Rm) | ≥ 540 MPa (HRB400) / ≥ 630 MPa (HRB500) | Ultimate tensile strength ensuring structural safety |
| Elongation (A) | ≥ 16% (HRB400) / ≥ 15% (HRB500) | Minimum elongation after fracture per standard |
| Diameter Range | 6 mm – 50 mm | Common sizes: 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40 mm |
| Length | 6 m / 9 m / 12 m or custom | Standard mill lengths; custom cutting available |
| Surface Finish | Hot-rolled ribbed (deformed) surface | Transverse and longitudinal ribs for superior concrete bonding |
| Application | Building, bridge, highway, dam, tunnel construction | Primary reinforcement in reinforced concrete and prestressed structures |
| Certification | ISO 9001, CE, BV, SGS, Mill Test Certificate (MTC) | Third-party inspection and factory quality certification available |
| Packaging | Bundled in 2–3 MT per bundle, steel wire tied | Seaworthy export packing; bare or with moisture-proof wrapping |
| MOQ | 25 MT per grade/size | Mixed container orders accepted; FOB, CFR, CIF terms available |
HRB400 HRB500 Steel Rebar - GB Certified Manufacturer
As a GB/T 1499.2-certified HRB400 HRB500 steel rebar manufacturer, we supply deformed reinforcing bars engineered to meet the most demanding structural requirements across civil, infrastructure, and industrial construction projects worldwide. HRB400 and HRB500 are China's two most widely specified hot-rolled ribbed bar grades, recognized for their superior bond strength, consistent mechanical performance, and compliance with rigorous national standards. Our integrated steel mill operates continuous casting and controlled rolling lines, enabling us to deliver rebar in diameters ranging from 6 mm to 50 mm with dimensional tolerances held to within ±0.4 mm. Whether your project demands seismic-grade reinforcement for high-rise frames, large-diameter bars for bridge piers, or standard structural rebar for residential foundations, our production capacity of over 800,000 metric tons per year ensures reliable supply continuity and mill-direct rates that outperform trading-house pricing.
What is HRB400 HRB500 Steel Rebar?
HRB400 and HRB500 are hot-rolled ribbed reinforcing bar grades defined under Chinese standard GB/T 1499.2. The numeric suffix denotes the characteristic yield strength: 400 MPa for HRB400 and 500 MPa for HRB500. Both grades feature transverse and longitudinal ribs that enhance mechanical interlock with concrete, making them the preferred choice for reinforced concrete structures where load-bearing integrity and crack resistance are paramount. HRB500 delivers a higher strength-to-weight ratio, enabling material savings of up to 12–15% compared with HRB400 in equivalent structural designs.
HRB400 HRB500 Steel Rebar Technical Specifications
Our rebar is produced in strict accordance with GB/T 1499.2-2018 and can be dual-certified to ISO 6935-2 upon request. Each heat is accompanied by mill test reports covering chemical composition, mechanical properties, and bend test results. Key parameters are summarized in the table below.
| Parameter | HRB400 | HRB500 |
|---|---|---|
| Standard | GB/T 1499.2-2018 | GB/T 1499.2-2018 |
| Yield Strength (ReL) | ≥ 400 MPa | ≥ 500 MPa |
| Tensile Strength (Rm) | ≥ 540 MPa | ≥ 630 MPa |
| Elongation after Fracture (A) | ≥ 16% | ≥ 15% |
| Rm/ReL Ratio | ≥ 1.25 | ≥ 1.25 |
| Carbon Equivalent (Ceq) | ≤ 0.54% | ≤ 0.55% |
| Available Diameters | 6 – 50 mm | 6 – 50 mm |
| Standard Length | 6 m / 9 m / 12 m (custom) | 6 m / 9 m / 12 m (custom) |
| Density | 7.85 g/cm³ at 20°C | |
| Surface Condition | Hot-rolled ribbed (deformed bar) | |
| Weldability | Suitable for flash butt, arc, and resistance welding | |
Both grades carry outstanding anti-corrosion properties relative to plain carbon bars, owing to controlled micro-alloying with vanadium (V), niobium (Nb), or titanium (Ti). HRB400E and HRB500E seismic variants are also available, featuring a maximum ReL ≤ 1.30 × nominal yield and Rm/ReL ≥ 1.25 for earthquake-resistant design compliance.
Get a Competitive Quote for HRB400 HRB500 Steel Rebar
Partner with a GB-certified HRB400 HRB500 steel rebar manufacturer that delivers mill-direct rates, full traceability documentation, and flexible logistics solutions to ports worldwide. Share your project specifications and required tonnage — our technical sales team will respond with a detailed, no-obligation quotation within 24 hours.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
