This table outlines the technical specifications of Q345B Channel Steel 160x80mm, highlighting its suitability for heavy-duty structural applications where strength, durability, and reliability are critical.
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Product details
| Parameter | Specification | Unit | Remarks |
|---|---|---|---|
| Material Grade | Q345B (Low-Alloy High-Strength Structural Steel) | — | Complies with GB/T 1591-2018 standard |
| Chemical Composition | C ≤0.20%, Si ≤0.50%, Mn 1.00–1.60%, P ≤0.040%, S ≤0.040%, with trace Nb, V, Ti | — | Alloying elements enhance strength and toughness |
| Cross-Sectional Dimensions | Web height: 160, Flange width: 80 | mm | C-shaped profile for heavy-duty structural support |
| Typical Thickness (Web/Flange) | 6.0–8.0 mm (varies by manufacturer) | mm | Influences weight and load-bearing capacity |
| Weight per Meter (Approximate) | 17.0–21.0 kg/m (varies with exact thickness) | kg/m | Calculated based on cross-sectional dimensions |
| Yield Strength (Minimum) | ≥345 | MPa | High strength for heavy-load applications |
| Tensile Strength | 470–630 | MPa | Excellent resistance to tensile forces |
| Elongation (δ5, Minimum) | ≥22 | % | Ensures ductility for bending and forming |
| Impact Toughness | ≥34 J at 20°C (longitudinal specimens) | J | Resistant to sudden impact loads |
| Weldability | Good | — | Compatible with standard welding processes |
| Formability | Excellent | — | Easily cut, drilled, and shaped for on-site customization |
| Corrosion Resistance (Base) | Moderate | — | Enhanced with galvanization or coating for harsh environments |
| Surface Finish | Mill finish | — | Ready for further treatment if required |
| Typical Applications | Heavy machinery frames, bridge components, industrial structures, high-rise building supports, and large-span frameworks | — | Ideal for projects requiring high strength and stability |
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