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Help CenterSteel Rebar & Deformed Steel Bar，HRB400 / HRB400E、HRB500 / HRB500E、HRB600、HRB335
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1. Product Overview
Deformed steel bar (rebar) is hot-rolled ribbed steel reinforcement with regular transverse ribs on the surface. It can form firm bonding force with concrete, effectively bear tensile stress in reinforced concrete structures, and is the core reinforcing material for all construction projects such as buildings, bridges, roads and water conservancy.
2. Product Classification
2.1 Classification by Strength Grade
HRB400 / HRB400EOrdinary seismic rebar, the most widely used grade, for general building main structure, beams, slabs and columns.
HRB500 / HRB500EHigh-strength seismic rebar, reduces steel consumption, applied to high-rise buildings, large bridges, underground projects.
HRB600Ultra-high strength rebar, used for super high-rise and heavy-load large-scale infrastructure.
HRB335Medium-strength rebar, mostly used for secondary structural reinforcement, low-rise construction.
Suffix "E" stands for earthquake-resistant reinforcement, meeting anti-seismic performance requirements for seismic zones.
2.2 Classification by Production Process
Hot rolled rebar: Standard mainstream product, stable mechanical performance, full compliance with national standards.
Fine grain rolled rebar: Low carbon alloy, better toughness, suitable for cold bending processing.
3. Executive Standards
Domestic Standard: GB/T 1499.2-2018
International Common Standards: BS4449 (UK), ASTM A615/A706 (US), JIS G3112 (Japan)
4. Conventional Specifications & Parameters
Nominal Diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm
Standard Length: 9m, 12m; customized fixed lengths available
Surface State: Original black hot-rolled surface; customized rust-proof oil coating upon request
Theoretical Weight: Calculated by national standard unit weight per meter, uniform tolerance control
5. Chemical & Mechanical Performance
Mechanical Indicators
Yield Strength, Tensile Strength, Elongation, Cold Bending Test all pass factory inspection
Seismic rebar HRB400E / HRB500E features stable yield ratio, good energy dissipation capacity under earthquake load
Chemical Composition
Controlled carbon, manganese, silicon, sulfur, phosphorus content; low harmful element content to ensure welding performance.
6. Core Product Advantages
Strong Bonding with ConcreteSpiral transverse ribs increase friction and occlusion with concrete, avoid separation and cracking of reinforced concrete.
Stable Seismic PerformanceSeismic-grade rebar has excellent ductility, does not break abruptly under earthquake impact, improves structural safety.
Excellent Weldability & MachinabilityConvenient for electric welding, mechanical connection, cold bending cutting, adapting to all construction processing techniques.
Complete Specifications & Stable QualityFull range of diameters and lengths, factory strict batch inspection, complete test certificates.
High Cost PerformanceHigh strength reduces total steel dosage, shortens construction period and lowers overall engineering cost.
7. Application Scope
Civil Building ProjectsHigh-rise residential buildings, commercial complexes, basement, foundation slab, beam, column, wall reinforcement.
Transportation InfrastructureHighway, railway, viaduct, tunnel, bridge pier and beam reinforcement.
Water Conservancy & HydropowerDam, reservoir, flood control dike, pumping station hydraulic structure.
Municipal EngineeringSubway station, comprehensive pipe gallery, overpass, retaining wall, sewage treatment plant.
Industrial ConstructionFactory workshop, logistics warehouse, heavy-duty industrial plant frame structure.
8. Packaging, Delivery & Trade Terms
Loading Port: Tianjin Port, factory direct delivery
Lead Time: 5–7 days for standard stock specifications
Packaging: Bundled with steel wire, marked with grade, diameter, length, furnace number on each bundle tag; bundled weight 2–5 tons
Attached Documents: Mill Test Certificate (MTC), SGS/BV third-party inspection report, ISO qualification certificate
Payment Term: 30% TT deposit, full balance settled before shipment; L/C is not accepted
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