Q345B Channel Steel 160x80mm

Q345B Channel Steel 160x80mm

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

Q345B Channel Steel 160x80mm represents a pinnacle of strength and reliability in heavy structural engineering. This robust C-shaped channel, forged from Q345B low-alloy high-strength steel, combines a substantial 160x80mm profile with exceptional mechanical properties to deliver unmatched support in demanding construction, industrial, and infrastructure applications. Engineered to handle heavy loads with precision, it stands as a cornerstone for projects requiring enduring stability and performance.

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