Carbon Steel

Optimal Balance of Strength, Cost, and Machinability

Broad Versatility

It is cost-effective and readily available, serving as the standard material for shafts and high-strength parts.

Excellent Heat Treatment

With moderate carbon content, induction hardening or quenching and tempering significantly increase surface hardness and wear resistance for heavy-load operations.

Great Machinability

The uniform structure ensures stable cutting performance and long tool life. It is ideal for turning, milling, drilling, and subsequent grinding processes.

Mechanical & Physical Specifications (JIS S45C)
Density7.85 g/cm³
Hardness (Post-Heat Treatment)HRC 45 ~ 55 (Depending on tempering conditions)
Yield Strength≥ 343 MPa (N/mm²)

Machining Insights & Applications

While carbon steel is easy to machine, it is prone to rust. We strictly manage anti-rust procedures during processing and recommend finishes like black oxide, hard chrome, or phosphate plating:

  • Transmission Shafts & Spindles
  • Mechanical Gears & Sprockets
  • Automation Equipment Jigs
  • Hydraulic Cylinders & Mold Bases