
Small Square Billet 80x80mm Q235B
The Small Square Billet 80x80mm Q235B is a remarkable carbon structural steel
This parameter table showcases the key technical details of Q235 Angle Steel 40x40mm, which is favored for its good workability, cost-effectiveness, and suitable strength properties in numerous applications where moderate structural support is needed.


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Product details
| Material | Q235 (Mild Carbon Structural Steel) | — | Chemical Composition: C ≤0.22%, Si ≤0.35%, Mn ≤1.40%, P ≤0.045%, S ≤0.050% |
| Section Size | 40×40 | mm | Equal-leg angle, both legs 40mm |
| Thickness Options | 3/4/5/6 | mm | Standard available thicknesses |
| Weight per Meter | 1.852 (3mm) / 2.422 (4mm) / 2.976 (5mm) / 3.500 (6mm) | kg/m | Corresponding to different thicknesses |
| Length | 3000 – 9000 (Customizable) | mm | Standard lengths available with option to cut to specific lengths |
| Cross-Sectional Area | 2.359 (3mm) | cm² | Example value; varies with thickness |
| Yield Strength | ≥235 | MPa | Minimum value at room temperature |
| Tensile Strength | 375 – 500 | MPa | Typical range at room temperature |
| Elongation (δ5) | ≥26 | % | Minimum percentage at room temperature |
| Bend Test | 180° | Bend diameter related to thickness as per relevant standards | |
| Manufacturing Standard | GB/T 700 – 2006 | — | Compliant with the Chinese national standard for carbon structural steels |
| Surface Treatment | Mill finish (black) / Paint coating / Galvanizing | — | Options for different corrosion protection requirements |
| Typical Applications | Structural frameworks in light to medium-duty buildings, supports for shelves and racks, bracing in fencing, small machinery frames | — | Widely used for various light to medium load-bearing and structural purposes |
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The Small Square Billet 80x80mm Q235B is a remarkable carbon structural steel

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