We manufacture forging ingots, billets, and blooms in carbon steel specifically for C30 , designed for general engineering and medium-strength applications where good toughness, machinability, and uniform Mechanical properties are required.
C30 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 |
(Properties may vary depending on section size and heat treatment conditions)
C30 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 |
| C30 | 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 C30 |
| AISI 1030 | 0.28 - 0.34 | Automotive parts | Normalizing / q&t | American equivalent |
| S30C | 0.27 - 0.33 | Machined components | Normalizing | Japanese equivalent |
C30 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.