We manufacture forging ingots, billets, and blooms in carbon steel specifically for C 30 , designed for general engineering and medium-strength applications where good toughness, machinability, and uniform Mechanical properties are required.
C 30 is a medium carbon, unalloyed engineering steel that provides a balanced combination of strength, ductility, and toughness. Its moderate carbon and manganese content make it suitable for machined and forged components subjected to moderate mechanical loads.
| Element | Content (%) | Function / effect |
| Carbon (c) | 0.25 – 0.35 | Provides moderate strength and hardness |
| Manganese (mn) | 0.60 – 0.90 | Improves hardenability, strength, and toughness |
| Sulfur (s) | 0.050 max | Improves machinability; controlled to limit brittleness |
| Phosphorus (p) | 0.050 max | Aids machinability; limited to maintain toughness |
| Silicon (si) | 0.05 – 0.35 | Acts as a 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 |
C 30 is the ideal choice when moderate strength, good toughness, and excellent machinability are required at an economical cost. Its simple chemistry and consistent performance make it suitable for a wide range of general engineering applications.
| Grade | Carbon (%) | Key applications | Heat treatment | Comments |
| C 30 | 0.25 – 0.35 | Shafts, fasteners, forgings | Normalizing / q&t | Good balance of strength and toughness |
| EN8 | 0.35 – 0.45 | Engineering components | Normalizing | Higher strength than C 30 |
| Aisi 1030 | 0.28 – 0.34 | Automotive parts | Normalizing / q&t | American equivalent |
| S30c | 0.27 – 0.33 | Machined components | Normalizing | Japanese equivalent |
C 30 is a medium carbon engineering steel that offers a reliable combination of strength, toughness, and machinability. It is widely used in machined, forged, and structural components across multiple industries.