
Round Billet 500mm 20CrMnTi
Our 500mm diameter Round Billet is manufactured from 20CrMnTi alloy steel, a
This 100x100mm Q235B small square billet offers a practical balance of strength, ductility, and affordability, making it a versatile choice for small to medium-scale fabrication. Its consistent chemical composition and mechanical properties ensure reliable performance in diverse applications, while its manageable size simplifies handling and processing in workshops.


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Product details
The Small Square Billet 100x100mm Q235B is a reliable carbon structural steel product engineered for flexibility and performance in medium-scale manufacturing and construction projects. Compliant with GB/T 700-2006 standards, this 100x100mm square billet balances moderate strength, excellent workability, and cost-effectiveness, making it a go-to material for fabricators seeking versatility in creating durable, precision components.
| Parameter | Value | Remarks |
|---|---|---|
| Standard | GB/T 700-2006 | Carbon structural steel standard |
| Grade | Q235B | Impact tested at 20℃ |
| Chemical Composition (wt%) | ||
| – Carbon (C) | ≤0.20 | Balances strength and weldability |
| – Silicon (Si) | ≤0.35 | Aids deoxidation and improves strength |
| – Manganese (Mn) | ≤1.40 | Enhances toughness and workability |
| – Phosphorus (P) | ≤0.045 | Minimized to reduce brittleness |
| – Sulfur (S) | ≤0.045 | Controlled to prevent hot cracking during processing |
| Mechanical Properties | ||
| – Yield Strength (ReL) | ≥235 MPa | Ensures structural stability under load |
| – Tensile Strength (Rm) | 370–500 MPa | Provides reliable load-bearing capacity |
| – Elongation (A) | ≥26% | Excellent ductility for forming and bending |
| – Impact Energy (Akv) | ≥27 J | At 20℃ (longitudinal specimen), resists impact fracture |
| – Bending Test | 180° | Bend diameter: a (where ‘a’ = 100mm, for thickness ≤60mm) |
| Dimensions | 100×100mm (square cross-section) | Nominal size; tolerances comply with industry standards |
| Length | 6–12m (customizable) | Standard delivery range; tailored lengths available on request |
| Surface Quality | Free from cracks, deep scratches, and excessive scale | Ensures suitability for welding, machining, and coating |
| Delivery Condition | Hot rolled (standard); cold drawn (optional) | Hot rolled for general applications; cold drawn for better dimensional accuracy |
| Typical Applications | Light structural components, machinery frames, brackets, small-scale construction parts, and fabrication of custom metal products | Ideal for projects requiring moderate strength and easy workability |
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Our 500mm diameter Round Billet is manufactured from 20CrMnTi alloy steel, a

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