This cold rolled carbon steel coil is engineered for superior performance in demanding industrial applications. The cold reduction process enhances its strength, hardness, and dimensional accuracy. It features a smooth, uniform surface finish ideal for painting or plating.
This material offers excellent formability and consistent mechanical properties, ensuring reliability in manufacturing. The product is widely used in automotive components, household appliances, construction, and various machinery parts. It represents a cost-effective and high-quality solution for precision-driven production needs.
| Chinese Grade | Foreign Grades (by Standard) | Type | Carbon Content (%) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Typical Applications |
|---|---|---|---|---|---|---|---|
| 20# | ASTM: 1020; JIS: S20C | High-Quality Carbon Structural Steel | 0.17-0.24 | ≥245 | 410-550 | ≥25 | Stamping parts, welded structures, bushings, bolts |
| 45# | ASTM: 1045; JIS: S45C | High-Quality Carbon Structural Steel | 0.42-0.50 | ≥355 | 600-750 | ≥16 | Gears, shafts, bolts, molds |
| 65# | ASTM: 1065; JIS: SWRH67A | High-Quality Carbon Spring Steel | 0.62-0.70 | ≥410 | ≥695 | ≥10 | Springs, elastic components, wear-resistant parts |
| Q235A | ASTM: A36; EN: S235JR | Carbon Structural Steel | ≤0.22 | ≥235 | 370-500 | ≥26 | Construction steel structures, ordinary mechanical parts |
| Q235B | ASTM: A36; EN: S235JR | Carbon Structural Steel | ≤0.20 | ≥235 | 370-500 | ≥26 | Bridges, vehicles, welded components |
| Q235C | EN: S235J0 | Carbon Structural Steel | ≤0.17 | ≥235 | 370-500 | ≥25 | Low-temperature structural parts (impact toughness at 0℃) |
| Q235D | EN: S235J2 | Carbon Structural Steel | ≤0.17 | ≥235 | 370-500 | ≥24 | Low-temperature high-toughness structures (impact toughness at -20℃) |