Hot Forging

1.2343 VEXtra

Hot work tool steel with ESR properties. Good combination of toughness and hot strength.

Chemical Composition

NO DIN C Si Mn P S Cr Mo V
1.2343 VEXtra X37CrMoV5-1 0,33-0,41 0,80-1,20 0,25-0,50 Max 0,025 Max 0,008 4,80-5,50 1,10-1,50 0,30-0,50

Material Properties

  • Good toughness and ductility.
  • Good enough hot strength and tempering back resistance.
  • Good cleanness and homogeneity.
  • Good Polishability.
  • Good for texturing.
  • Good weldability.
  • Good machinability.
  • Up to 54 HRc after the heat treatment.
  • Recommended working hardness 44-52 HRc.
  • Good nitriding and coating ability.
  • Good thermal conductivity.

Applications

  • All press forging dies and cores
  • Precision Plastic injection molds
  • Molds for abrasive polymers and reinforced resins
  • Low pressure die casting dies
  • High pressure die casting dies
  • Industrial knives & blades resistant to cracking and breaking
  • Punches, cutting and shearing blades thicker than 10 mm.

Heat Treatment

HEAT TREATMENT TEMPERATURE
Soft Annealing 750-800°C
Stress Relieving 600-650°C
Hardening 1020-1060°C
Tempering 530-700°C

Physical Properties

20°C 100°C 400°C 500°C 600°C
Elastic Modulus [kN/mm²] 210 - 183 176 168
Thermal Expansion Coefficient [10ˉ6/K] - 10,7 11,8 11,9 12,4
Thermal Conductivity [W/mK] - 28,4 27,1 29,9 28,5

Delivery Condition

230 HB, Soft Annealed.

Tempering Graph