A36/Q235/S235JR carbon steel coil is a widely used structural steel product characterized by excellent strength, weldability, and versatility. With a balanced composition mainly consisting of iron, carbon, manganese, silicon, phosphorus, and sulfur, this steel coil offers reliable performance across construction, manufacturing, and industrial applications.
Manufactured through hot-rolling or cold-rolling processes, the coil offers customizable thicknesses from 0.2mm up to 200mm and widths ranging from 600mm to 2500mm. The material is compliant with international standards such as ASTM, ISO, JIS, and EN. It can be delivered in various surface finishes and delivery conditions, including annealed, tempered, or quenched forms.
High tensile and yield strength
Excellent weldability and machinability
Reliable corrosion resistance
Wide range of thickness and width options
ISO9001, CE, and SGS certified
Available for custom cutting, sample orders, and fast delivery
S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, DC01, DC03, etc.
Thickness: 0.1mm – 200mm (customizable)
Width: 600mm – 2500mm (customizable)
Length: Coil form or custom length
Standards: ISO, JIS, ASTM, AS, EN
Production Process: Hot Rolled / Cold Rolled
Surface Finish: Plain, Polished, Laminated, or Brushed
Delivery Condition: As Rolled, Annealed, Quenched, Tempered
Element | C | Mn | Si | P | S | Cu |
Content | 0.25% | 1.03% | 0.28% | ≤0.04% | ≤0.05% | 0.20% |
Property | Metric | Imperial |
Tensile Strength | 400–550 MPa | 58,000–79,800 psi |
Yield Strength | ≥250 MPa | ≥36,300 psi |
Elongation (200mm) | ≥20% | ≥20% |
Modulus of Elasticity | 200 GPa | 29,000 ksi |
Shear Modulus | 79.3 GPa | 11,500 ksi |
Poisson’s Ratio | 0.26 | 0.26 |
Density | 7.85 g/cm³ | 0.284 lb/in³ |
Standard Type | Equivalent Grade |
Chinese GB | Q235B |
American ASTM | A36, A283C |
European EN | S235JR |
German DIN | St37-2 |
Japanese JIS | SM400A |
British BS | 40A / 40B |
International ISO | E235B / Fe360B |
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