This parameter table outlines the key technical specifications of Q345B Channel Steel 120x60mm, a high-performance profile valued for its superior strength, durability, and versatility in demanding structural and industrial applications.
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Product details
| Parameter | Value/Description | Unit | Remarks |
|---|---|---|---|
| Material | Q345B (Low-Alloy High-Strength Structural Steel) | — | Chemical Composition: C ≤0.20%, Si ≤0.50%, Mn 1.00–1.60%, P ≤0.040%, S ≤0.040%, with trace alloying elements (Nb, V, Ti) |
| Section Size | 120×60 | mm | Channel section with web height 120mm and flange width 60mm |
| Thickness Options | 5/6/8/10 | mm | Standard thicknesses for web and flange |
| Weight per Meter | 9.72 (5mm) / 11.65 (6mm) / 15.46 (8mm) / 19.16 (10mm) | kg/m | Corresponding to respective thicknesses |
| Length Range | 6000–12000 (Customizable) | mm | Standard lengths; custom cuts available for project-specific needs |
| Cross-Sectional Area | 12.38 (5mm) / 14.83 (6mm) / 19.68 (8mm) / 24.39 (10mm) | cm² | Varies with thickness |
| Yield Strength (Minimum) | ≥345 | MPa | At room temperature |
| Tensile Strength | 470–630 | MPa | Typical range at room temperature |
| Elongation (δ5, Minimum) | ≥22 | % | At room temperature |
| Impact Toughness | ≥34 | J | Longitudinal specimens, tested at 20°C |
| Manufacturing Standard | GB/T 1591-2018 | — | Compliant with Chinese national standard for low-alloy high-strength structural steels |
| Surface Treatment | Mill finish (black) / Hot-dip galvanized / Epoxy coating | — | Galvanized option ideal for outdoor or corrosive environments |
| Typical Applications | Medium-to-heavy structural frameworks, bridge components, industrial machinery supports, high-load conveyor systems, and infrastructure projects | — | Suited for applications requiring higher strength than carbon steel channels |
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