Small Square Billet 130x130mm Q235B
The Small Square Billet 130x130mm Q235B is a versatile carbon structural steel
Small Square Billet 150x150mm Q235B
Small Square Billet 150x150mm Q235B
This 150x150mm Q235B small square billet offers enhanced material volume for components needing greater structural support while retaining the cost-effectiveness and versatility of Q235B grade steel. Its consistent mechanical properties and excellent processability make it a reliable choice for medium-scale fabrication projects where size and durability are key considerations….
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Product details
The Small Square Billet 150x150mm Q235B is a robust carbon structural steel solution engineered to excel in medium-to-large-scale manufacturing and construction projects. Compliant with GB/T 700-2006 standards, this 150x150mm square billet combines enhanced material volume, reliable mechanical performance, and exceptional workability, making it a go-to choice for fabricators seeking a cost-effective material for components requiring increased structural support.
| 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 for medium-section billets |
| – Silicon (Si) | ≤0.35 | Aids deoxidation and enhances structural stability |
| – Manganese (Mn) | ≤1.40 | Improves toughness and workability in fabrication |
| – Phosphorus (P) | ≤0.045 | Minimized to prevent cold brittleness in thicker sections |
| – Sulfur (S) | ≤0.045 | Controlled to reduce hot cracking during processing |
| Mechanical Properties | ||
| – Yield Strength (ReL) | ≥235 MPa | Ensures load-bearing capacity for medium-to-large components |
| – Tensile Strength (Rm) | 370–500 MPa | Provides reliable structural integrity under stress |
| – Elongation (A) | ≥26% | Excellent ductility for bending, forming, and welding |
| – Impact Energy (Akv) | ≥27 J | At 20℃ (longitudinal specimen), resists impact fracture |
| – Bending Test | 180° | Bend diameter: 2a (where ‘a’ = 150mm, for thickness >60mm) |
| Dimensions | 150×150mm (square cross-section) | Nominal size; tolerances comply with GB/T 702-2017 |
| Length | 6–12m (customizable) | Standard delivery range; longer lengths available on request |
| Surface Quality | Free from cracks, folds, and excessive scale | Ensures suitability for welding, machining, and coating |
| Delivery Condition | Hot rolled (standard); cold drawn (optional) | Hot rolled for general use; cold drawn for tighter dimensional accuracy |
| Typical Applications | Medium-to-large structural components, machinery frames, heavy-duty brackets, agricultural equipment, construction supports, and custom metal fabrications | Ideal for projects requiring increased material volume with balanced strength and workability |
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