Plastic Injection

– Pre Hardened –


Quenched and Tempered steel widely used in the manufacturing of machines and die making due to its high tensile strength and toughness.

Chemical Composition

NO Malzeme No DIN C Si Mn P S Cr Mo
V’4140 1.7225 42CrMo4 0.38-0.45 Max 0,40 0,75-1,0 Max 0,035 Max 0,035 0,90-1,20 0,15-0,35

Material Properties

  • Very good toughness.
  • Suitable for quenching and tempering.
  • Good flame and induction hardenability
  • Good nitriding ability.
  • Simple heat treatment.


  • All dies stands and holders.
  • Support plates.
  • Basic plastics injection molds.
  • Crank arms, Axle shaft and sleeve.
  • Constructions and agricultural machinery.
  • Bolts, nuts, and studs

Heat Treatment

Soft Annealing 680-750°C
Stress Relieving 600-650°C
Hardening 830-870°C
Tempering 540-680°C

Delivery Condition

Can be supplied as prehardened 28-34 HRc
Or Soft Annealed.

Tempering Graph