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ATC603 Material Composition

ATCORP, ATC-603, 20MnV6 is a carbon-manganese steel micro-alloyed with vanadium, commonly used in the manufacture of bushes and other components. It is known for its excellent machinability, weldability, high tensile strength, and toughness, making it suitable for a wide array of industrial applications.

ATC100
Performance IndexUnitsGrease Lubricated
Max Dynamic LoadMpa150
Max Static LoadMpa300
Working Temperature°C-40 - +150
Max Linear Velocitym/s0.10
Max Pv Valuesm/s x Mpa1.50
Coefficient of Friction0.12 – 0.20
Surface HardnessHRC56-62

Benefits of ATC603

  • Chemical composition:ATC603 typically contains 0.16-0.22% Carbon, 1.30-1.60% Manganese, 0.08-0.15% Vanadium, 0.10-0.35% Silicon, and small percentages of other elements like Phosphorus and Sulphur.
  • Mechanical properties:When supplied in the black hot rolled condition, it boasts a tensile strength range of 600-790 MPa and a yield strength range of 440-570 MPa. It also exhibits good ductility and impact resistance.
  • Machinability:Silicon-calcium treatment and precise control of sulphur content contribute to its excellent machinability, leading to improved swarf breakup, increased feeds and speeds, and enhanced tool life.
  • Weldability:The low carbon content and vanadium addition contribute to its excellent weldability, making it suitable for various standard welding processes. Pre-heating or post-heating may be beneficial for larger sections or to reduce residual stresses after welding.