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20Cr alloy steel round bar
20Cr is a high-quality low-carbon, low-alloy chromium case hardening steel. It features good weldability, high strength after carburizing, and excellent wear resistance for surface-hardened applications. Commonly used in the automotive and machinery industries for components requiring high core strength and surface hardness, such as gears, shafts, and pistons.
ASTM: A29/A29MDIN: 20Cr4 / 1.7027JIS: SCr420GB: 20Cr
MaterialGB/T 3077 / ASTM A29/A29M / DIN EN 10083/3 / JIS G4053
ThicknessN/A (Bar Product)
WidthN/A (Bar Product)
LengthCustomizable / Standard lengths available
MOQ1 Ton
Lead Time7-15 days
PortShanghai / Tianjin
Response within 24 hours
In Stock — Ready to Ship
| Material Grade | GB/T 3077 / ASTM A29/A29M / DIN EN 10083/3 / JIS G4053 | Standard | GB/T 3077 / ASTM A29/A29M / DIN EN 10083/3 / JIS G4053 |
| Thickness Range | N/A (Bar Product) | Width Range | N/A (Bar Product) |
| Length Range | Customizable / Standard lengths available | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | 0.18-0.24 | Si | 0.17-0.37 |
| Mn | 0.50-0.80 | P | ≤0.035 |
| S | ≤0.035 | Cr | 0.70-1.00 |
| Ni | ≤0.030 | Cu | ≤0.30 |
| Tensile Strength | ≥835 MPa | Yield Strength | ≥540 MPa |
| Hardness (Annealed) | ≤179 HBS | Hardness (Oil Quenched & Tempered) | 28-34 HRc |
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