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Help CenterSteel Rebar & Steel Bar，ASTM A615 Gr60，B500B，SD400、SD490
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Steel Bar, full name hot‑rolled ribbed steel bar, is special concrete‑reinforcing steel hot‑rolled with crescent‑shaped transverse ribs on surface. The ribs greatly enhance bonding and anchoring force with concrete. Steel Bar features high yield strength, good elongation, excellent seismic toughness and stable welding & lapping performance. It is an indispensable skeleton material for building construction, road‑bridge infrastructure, hydraulic engineering and rail‑transit projects. Steel Bar is mainly divided into HRB400E Steel Bar and HRB500E Steel Bar, two core seismic‑resistant grades. Different strength grades of Steel Bar adapt to ordinary civil buildings, high‑rise seismic buildings, heavy‑load large‑scale infrastructure and other engineering conditions. With complete specifications, full rib profile and controllable dimensional tolerance, Steel Bar is in sufficient stock and supports deep‑processing customization such as fixed‑length cutting, threading and epoxy‑coated anti‑corrosion treatment. As grade‑Ⅲ seismic‑resistant rebar, HRB400E Steel Bar owns good plasticity, qualified seismic ductility index, convenient welding performance and prominent cost‑effectiveness. It is the most widely‑used Steel Bar in domestic construction market for residential buildings, commercial structures, ordinary factories and municipal supporting projects. HRB500E Steel Bar is grade‑Ⅳ high‑strength seismic‑resistant rebar with higher yield strength and stronger load‑bearing capacity for steel‑material saving. It is suitable for super high‑rise buildings, large‑scale bridges, tunnels, hydraulic dams and key seismic‑resistant projects with strict structural‑strength requirements. Nominal diameter of Steel Bar normally ranges from 12‑40 mm, standard fixed lengths 9 m, 12 m. Custom lengths from 5.8 m‑13 m are available. Delivery condition is hot‑rolled black finish; epoxy‑coating and anti‑rust oil treatment are optional. All Steel Bar products pass full inspections including mechanical property, reverse bending test and dimension & appearance check. Construction enterprises, infrastructure contractors and precast‑component manufacturers can selectHRB400E Steel Bar and HRB500E Steel Bar according to design load and seismic‑grade requirements, giving full play to advantages of firm anchorage, convenient construction and high engineering adaptability of Steel Bar to guarantee safe and durable concrete structures.
1. Material Grade
- Domestic Grades:HRB400E, HRB500E, HRB400, HRB500, HRB600E
‑ Export Grades: ASTM A615 Gr60, B500B, SD400, SD490, compliant with American, European and Japanese standards for foreign‑trade orders
2. Execution Standards
- GB 1499.2‑2024 Steel for the reinforcement of concrete‑Hot‑rolled ribbed bars (mandatory national standard for rebar)
‑ ASTM A615, BS4449, JIS G3112, meeting acceptance specifications for domestic and overseas construction & infrastructure projects
‑ Original mill test certificates available, SGS/BV third‑party inspection acceptable.
3. Specification Parameters
Steel Bar‑HRB400E Steel Bar: nominal diameter Φ12‑40 mm; standard length 9 m/12 m; hot‑rolled delivery, qualified seismic performance for most civil‑building projects;Steel Bar‑HRB500E Steel Bar: nominal diameter Φ12‑40 mm; standard length 9 m/12 m; high‑strength seismic grade for high‑rise and heavy‑load large‑scale infrastructure; Custom fixed‑length cutting 5.8‑13 m, threading and epoxy‑coating deep‑processing are supported.HRB400E Steel Bar is well‑stocked with easy welding, lapping and binding for mass‑production ordinary building projects;HRB500E Steel Bar delivers higher strength grade to reduce reinforcement quantity, adapting to high‑seismic‑intensity and large‑span heavy‑load projects.
4. Classification & Surface Treatment
- HRB400E Steel Bar: Grade‑Ⅲ seismic‑resistant rebar with balanced mechanical performance, widely used in residential buildings, factories and ordinary municipal concrete structures.
‑HRB500E Steel Bar: Grade‑Ⅳ high‑strength seismic‑resistant rebar with high yield and high ductility, applied in super high‑rises, bridges, tunnels, hydraulic key projects.
‑ Delivery state: hot‑rolled black finish; optional epoxy anti‑corrosion coating and anti‑rust oil coating;
‑ BothHRB400E Steel Bar and HRB500E Steel Bar support custom fixed‑length cutting and end threading according to engineering drawings.
5. Main Applications
Steel Bar is core reinforcement material for concrete structures, widely used in high‑rise residences, commercial buildings, industrial workshops, municipal infrastructure, highway bridges, tunnel linings, reservoirs & dams, rail transit, precast components and civil‑defense projects.HRB400E Steel Bar features high cost‑performance and stable supply. It is the most‑widely‑used Steel Bar for civil‑building and ordinary infrastructure projects for beams, slabs, foundation reinforcement of conventional concrete structures.HRB500E Steel Bar is high‑strength and material‑saving, suitable for high‑seismic‑intensity zones, large‑span buildings, large‑scale bridges and hydraulic key projects, improving load‑bearing capacity and seismic safety margin of concrete structures. Construction and precast‑component enterprises can select grades according to structural‑design parameters, relying on excellent anchoring performance and stable mass‑supply of Steel Bar to guarantee construction quality and long‑term safety of engineering projects.
6. Packing, MOQ & Lead Time
- Packing: Steel Bar bundled by specifications, fastened with steel straps, marked with grade & size tags for each bundle, end protection, suitable for land transportation and container sea shipment.
‑ MOQ: 25 tons minimum order quantity, mixed‑batch ordering of HRB400E Steel Bar and HRB500E Steel Bar supported, large‑scale engineering orders acceptable.
‑ Lead Time: 3‑7 days for regular in‑stock sizes; 8‑15 days for epoxy‑coating and special fixed‑length deep‑processing orders. Full‑set mill test certificates are provided, third‑party inspection supported, applicable to FOB, CIF, DAP and other foreign‑trade terms.
7. Product Advantages
Steel Bar integrally hot‑rolled with full transverse ribs, strong anchoring‑bonding force with concrete to prevent structural slip and cracking;
2. HRB400E Steel Bar has complete specifications and sufficient stock, compliant seismic indexes, convenient welding & binding, economical engineering procurement cost;
3. HRB500E Steel Bar owns outstanding high‑strength seismic ductility, reducing reinforcement consumption under equal load conditions to cut overall project material cost;
4. Steel Bar complies with national mandatory standard, supports epoxy anti‑corrosion deep processing, easy acceptance for domestic and overseas building & infrastructure projects and stable mass‑supply capacity.
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