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Q235B Hot-Rolled Steel Coil

Q235B Hot-Rolled Steel Coil
Q235B Hot-Rolled Steel Coil, a foundational cornerstone of global industrial infrastructure, is highly renowned for its outstanding tensile strength, excellent weldability, and superior structural versatility. Manufactured in strict compliance with the GB/T 700 standard, this carbon structural steel coil delivers a perfect balance of reliable mechanical performance and high cost-efficiency. Its robust load-bearing capacity and premium plasticity make it exceptionally easy to cut, bend, and weld in heavy-duty environments without compromising structural integrity. Widely utilized as a primary substrate for cold-rolling and galvanizing lines, it is also extensively applied in structural engineering, steel frame fabrications, pipelines, and heavy machinery manufacturing, delivering maximum longevity and exceptional efficiency for large-scale projects.
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Product Description
Technical ParameterSpecification & Manufacturing Details
Product NameQ235B Hot-Rolled Steel Coil (Carbon Structural Steel)
Executive StandardsStrictly complies with GB/T 700, ASTM A36, JIS G3101, and EN 10025
Equivalent GradesEquivalent to ASTM A36 / JIS G3101 SS400 / EN 10025 S235JR
Thickness Range1.2mm - 20.0mm (Heavy-Duty Hot-Rolled Thickness Profiling)
Width Range600mm - 2500mm (Custom Longitudinal Slitting and Edge Trimming Available)
Surface TreatmentAs Rolled / Mill Finish (Lightly Oiled for Corrosion Protection)
Application SuitabilityPerfect for Structural Welding, Bending, Forming, and Redrawing Baselines
Coil ID & Delivery WeightInner Diameter: 610mm / 762mm | Unit Coil Weight: 5 - 28 Metric Tons
GradeC (%)Mn (%)P (%)S (%)Yield Strengthσs (MPa)Tensile Strengthσb (MPa)ElongationA50 (≥%)Impact EnergyKV2 (20°C ≥J)
Q235B≤ 0.20≤ 1.40≤ 0.045≤ 0.045≥ 235370 - 500≥ 2627
SS400--≤ 0.050≤ 0.050≥ 245400 - 510≥ 21-
S235JR≤ 0.17≤ 1.40≤ 0.035≤ 0.035≥ 235360 - 510≥ 2627


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