
Round Billet Diameter 150mm 20#
Our 150mm diameter Round Billet is manufactured from premium 20# carbon steel
This table details the technical specifications of S355JR Channel Steel 120x60mm, highlighting its high-strength properties and suitability for medium-to-heavy structural applications in construction, infrastructure, and industrial fabrication.


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Product details
| Parameter | Specification | Unit | Remarks |
|---|---|---|---|
| Material Grade | S355JR (High-Strength Structural Steel) | — | Complies with EN 10025-2:2004 standard |
| Chemical Composition | C ≤0.24%, Si ≤0.55%, Mn ≤1.60%, P ≤0.045%, S ≤0.045%, N ≤0.012% | — | Controlled alloy content ensures high strength and weldability |
| Cross-Sectional Dimensions | Web height: 120, Flange width: 60 | mm | Standard C-channel profile for structural stability |
| Typical Thickness (Web/Flange) | 5.0–7.0 mm (varies by manufacturer) | mm | Influences weight, strength, and load capacity |
| Weight per Meter (Approximate) | 10.5–13.8 kg/m (varies with exact thickness) | kg/m | Calculated based on cross-sectional dimensions and density |
| Yield Strength (Minimum) | 355 | MPa | Higher than S235JR, ideal for heavy-load applications |
| Tensile Strength | 470–630 | MPa | Superior tensile performance for demanding structural needs |
| Elongation (Minimum) | ≥21% (for thickness ≤16mm) | % | Ensures ductility for bending and forming without brittle failure |
| Impact Toughness | ≥27 J at +20°C (longitudinal test pieces) | J | Resistant to sudden impact loads in ambient conditions |
| Weldability | Excellent | — | Compatible with standard welding processes (MIG, TIG, arc welding) |
| Formability | Good | — | Can be cut, drilled, and bent for on-site customization |
| Corrosion Resistance (Base) | Moderate | — | Enhanced with galvanization or painting for outdoor use |
| Surface Finish | Mill finish | — | Clean, uniform surface ready for further treatment if needed |
| Typical Applications | Heavy-duty frames, bridge components, industrial machinery supports, construction girders, and load-bearing structures | — | Preferred for projects requiring high strength-to-weight ratio |
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Our 150mm diameter Round Billet is manufactured from premium 20# carbon steel

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