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Steel Bar
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    Rebar Steel HRB400 HRB500 HRB235 HRB355 ASTM a36 a516 a572 a514 a588 a285 ss400

    The steel grade of our products have carbon structural steel, carbon tool steel, carbon spring steel, stainless steel, heat-resistant steel, wear-resistant steel, alloy spring steel, alloy structural steel, bearing steel, alloy tool steel, high alloy tool steel, high-speed tool steel, high temperature alloys, electrical alloy, precision alloy, low temperature steel, electrical steel, ductile iron, grey cast iron, etc.We can provide professional steel, such as bridge steel, ship steel, boiler steel, pressure vessel steel, agricultural machinery steel, etc

    Product Details(Feature/Advantages)

    Delong Metal is group company in the steel manufacture & Trading, founded in the 2000s, 800+ staff, 25, 000+ m2 non-dust workshop, 40+ great large mills and cooperation partners in China, 4000, 000+ MT production per year under ISO management, 40, 000+customers in domestic and overseas market, 10 billion USD of annual turnover, 15+ subsidiary companies all over China, ranking the Top 100 private enterprises in China, 1 hour reach Shanghai/Tianjin /Guangzhou Port, we keep high quality, competitive price, thousands tons of stock, most efficient delivery and reliable cooperation for global valued customers.

    Steel rebar is a ribbed steel bar on the surface, also known as ribbed steel bar, usually with two longitudinal ribs and transverse ribs evenly distributed along the length. The shape of the transverse ribs is spiral, herringbone, and crescent. It is expressed in millimeters of the nominal diameter. The nominal diameter of ribbed steel bars is equivalent to the nominal diameter of smooth round steel bars with equal cross-sections. The nominal diameter of the steel bars is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, and 40 mm. Ribbed steel bars mainly bear tensile stress in concrete. Ribbed steel bars have greater bonding capacity with concrete due to the action of ribs, so they can better withstand external forces.

    Construction Deformed Steel Bar
    Product Name steel rebar ; deformed steel bar
    Diameter(mm) 6mm-50mm or be required
    Length customized
    Size According to our customer
    Material Grade HRB235、Q235
    Surface Requirement
    Technique Hot Rolled / Forged / Cold Drawn
    Application Building construction, construction concrete

    Dia.(mm) Weight(kg/m) Dia.(mm) Weight(kg/m)
    5 0.154 22 2.984
    6 0.222 24 3.551
    8 0.395 25 3.853
    10 0.617 26 4.168
    12 0.888 28 4.83
    14 1.208 30 5.549
    16 1.578 32 6.31
    18 1.998 36 7.99
    20 2.466 40 9.87

    Mechanical Features
    STEEL GRADE Tensile Strength Yield Strength Rm/Re Elongation
    Re MPa Rm MPa
    A3 (RB25A3) 482 641 22%
    A4 (RB25A4) 528 666 20%
    B500A 500 0.6 1.05 2.5
    B500B 500 0.45 1.08 5
    B500C 500 0.65 ≥1.15 7.5

    Chemical Features
    A3 (RB25A3) 0.297 0.594 0.153 0.0156 0.0096 0.0167 0.207
    A4 (RB25A4) 0.281 0.598 0.178 0.0131 0.0322 0.0679 0.201
    B500A 0.8 0.2 0.35 0.04 0.04 0.08 110
    B500B 0.7 0.03 0.07 0.03 0.03 0.07 100
    B500C 0.9 0.2 0.35 0.04 0.04 0.07 110


    Grade Equivalency
    A1 SR24
    A2 A615G40 SD35
    A3 A615G60 SD40
    A615G75 SD50

    We operate within the scope of ISO 9001: 2015 CE UL CCC accredited management system and the raw materials are procured from suppliers in compliance with ASTM, BS EN and DIN standards.Our products are rigorously inspected to ensure they are within tolerance of our customer′s specifications, we work with accredited laboratories for specialised material testing and chemical analysis.In addition, we use X-ray fluorescence technology to meet our high inspection standards and to ensure that our customers get the best quality products.