Hot Forging

1.2714 VEXtra

Impact resistant hot work tool steel for hammer forging.

Chemical Composition

NO DIN C Si Mn P S Cr Mo V Ni
V’1.2714 55NiCrMoV 0,50-0,60 0,40-1,10 0,65-0,90 Max 0,025 Max 0,050 1,00-1,20 0,45-0,55 0,07-0,12 1,60-1,80

Material Properties

  • Excellent toughness.
  • Very good hardness profile
  • Good machinability.
  • Not recommended to use on applications more than 44 HRc.

Applications

  • Press forging: Medium and large size forging dies.
  • Core and cavities for press forging
  • Support parts and holders in forging dies.
  • Bolsters and support blocks on aluminium extrusion dies.

Heat Treatment

HEAT TREATMENT TEMPERATURE
Soft Annealing 690-730°C
Stress Relieving 600-650°C
Hardening 860-900°C
Tempering 300-600°C

Physical properties

20°C 100°C 200°C 400°C 600°C
Elastic Modulus [kN/mm²] 210 - - 198 178
Thermal Expansion Coefficient [10ˉ6/K] 12 12,1 13,1 13,5 14,3
Thermal Expansion [W/mK] 36,0 - 37,0 39,0 36,0
Toughness [J] 25,0 36,0 39,8 - -
Strength [N/mm²] 1150 - 1030 930 -

Delivery conditions

Prehardened: 40-44 HRc Only Flats and blocks

Soft annealed 250 HB: Only Rounds

Tempering graph