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Help CenterSteel Rebar＆Reinforcing Steel Bar，HRB400, HRB500, BS460, ASTM A615 Grade 60
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1. Product Overview
- Full Name: Hot Rolled Deformed Steel Bar / Hot Rolled Ribbed Bar
- Short Name: Rebar / Deformed Bar
- Standard: GB 1499.2-2018, ASTM A615, BS 4449, JIS G3112, DIN 488
- Application: Mainly used for reinforced concrete structures, providing tensile strength and bonding force with concrete.
2. Material & Grade
- Chinese Grades: HRB335, HRB400, HRB500, HRB600
- Seismic Grade: HRB400E, HRB500E, HRB600E
- Foreign Equivalent Grades:
- ASTM: Grade 60, Grade 75
- BS: B500B, B500C
- JIS: SD345, SD390, SD490
- Main Materials: 20MnSi, 20MnSiV, 20MnSiNb, 20MnTi
3. Size & Dimension
- Nominal Diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm, 50mm
- Standard Length: 9m, 12m (custom lengths available)
- Form: Straight bar, coil (for small diameters)
4. Mechanical Properties
- Yield Strength: ≥335MPa (HRB335), ≥400MPa (HRB400), ≥500MPa (HRB500)
- Tensile Strength: ≥490MPa, ≥540MPa, ≥630MPa respectively
- Elongation: ≥16%
- Bend Performance: Good cold bending performance, no crack after bending test
- Weldability: Suitable for normal welding processes
5. Surface Characteristics
- With longitudinal ribs and transverse ribs
- Rib types: crescent rib (most common), spiral rib, herringbone rib
- Purpose: Improve bonding force with concrete
6. Weight Calculation
- Theoretical Weight Formula: W(kg/m) = 0.00617 × D² (D = nominal diameter in mm)
- Examples:
- Φ12: 0.888 kg/m
- Φ16: 1.58 kg/m
- Φ20: 2.47 kg/m
- Φ25: 3.85 kg/m
- Φ32: 6.31 kg/m
7. Main Applications
- High-rise buildings, residential & commercial construction
- Bridges, highways, railways, airports
- Hydraulic engineering, ports, docks
- Tunnel, subway, underground structure
- Large concrete foundations and frame structures
8. Packaging & Delivery
- Packaging: Bundle packing with steel strips
- Marking: Grade, diameter, factory mark, batch number
- Transport: By bulk carrier, container, truck
9. Advantages
- High strength and stable performance
- Excellent bonding with concrete
- Good seismic resistance (E-grade)
- Suitable for welding and processing
- Wide application and strong versatility
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