We manufacture forging ingots, billets, and blooms in carbon steel specifically for 15C8, designed for low strength engineering applications where excellent formability, weldability, and machinability are required.
15C8 is a low carbon, unalloyed engineering steel known for its softness, high ductility, and good toughness. Due to its low carbon content, this grade does not harden significantly by quenching but is highly suitable for fabrication, cold forming, and case hardening applications.
This grade is widely used in general engineering and automotive applications where surface hardness is required along with a tough and ductile core.
| Element | Content (%) | Function / effect |
| Carbon (c) | 0.12 – 0.18 | Provides basic strength and good ductility |
| Manganese (mn) | 0.30 – 0.60 | Improves toughness and machinability |
| Sulphur (s) | 0.050 max | Controlled to maintain toughness |
| Phosphorus (p) | 0.050 max | Limited to prevent brittleness |
| Silicon (si) | 0.10 – 0.35 | Acts as deoxidizer and improves strength |
| Chromium (cr) | Nil | Not intentionally added |
| Nickel (ni) | Nil | Not present |
| Molybdenum (mo) | Nil | Not present |
| Other elements | — | No significant alloying additions |
15C8 Has Several International Equivalents, Including:
15C8 Offers A Reliable And Economical Solution For Applications Where High Strength Is Not Required But Consistent Performance And Ease Of Machining Are ESSential. Its Balanced Composition Ensures Smooth ProceSSing, Reduced Tooling Wear, And Cost Savings In Production.
| Grade | Carbon (%) | Strength level | Typical applications |
| C-10 | 0.08 – 0.12 | Very low | Deep drawn parts |
| 15C8 | 0.12 – 0.18 | Low | Case hardened parts |
| C-20 | 0.17 – 0.23 | Low–medium | Engineering parts |
| 20 c8 | 0.17 – 0.23 | Low–medium | Automotive parts |
| 30C8 | 0.25 – 0.35 | Medium | Shafts & axles |
15C8 carbon steel is a low carbon grade ideal for applications requiring excellent formability, weldability, and case hardening capability. It provides a tough and ductile core with hard, wear-resistant surfaces, making it a cost-effective and reliable choice for general engineering and automotive uses.