Product

China 40CrMoV13-9-Alloy steel

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China 40CrMoV13-9-Alloy steel is the EN chemical designation. It has a fairly low thermal conductivity among EN wrought alloy steels. In addition, it has a very high embodied energy and a fairly high base cost. Moulds for manufacturing plastic materials.

Reference standard

  • EN 10085: 2001 Nitriding steel. Technical delivery conditions
  • EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels

Application

  • 40CrMoV13-9 is the EN chemical designation. It has a fairly low thermal conductivity among EN wrought alloy steels. In addition, it has a very high embodied energy and a fairly high base cost.
  • Moulds for manufacturing plastic materials.
  • suitable for chemical graining.
  • Die blocks and punches.
  • Prototype dies for light alloy pressure casting.

Chemical composition

C Si Mn P S Cr Mo V
0.36-0.43 max   0.4 0.4-0.7 max   0.025 max   0.035 3-3.5 0.8-1.1 0.15-0.25

Equivalent Grades

EU Germany England Inter
EN DIN,WNr BS ISO
40CrMoV13-9 40CrMoV13-9 897M39 31CrNiMo8

Size Tolerance

Surface Finish Size Tolerance Length
Black For Forged condition (0,+5 mm) Multiple Length/Fixed Length
Black For Rolled condition (0,+1mm)
Rough Turned (0,+3mm)

Mechanical properties

  • Tensile Strength:min 950 N/mm2
  • Yield Strength:min. 750 N/mm2
  • Elongation:min.11%(l)
  • Kv-Imapct value:min.40J (l)a

Heat Treatment Conditions

  • +A   Soft annealed/Soft annealing
  • +N   Normalized/Normalizing
  • +QT  Quenched and Tempered
  • +U   Untreated
  • +SR  Stress Relieved

Normalizing:870℃-880℃,Cool in air

Soft Annealing:680℃-720℃

Hardening:870℃-970°C,oil or polymer,840-850°C,water

Tempering:580°C -700°C, cool in still air

Peeled and hot-rolled bars 40CrMoV13-9, 1.8523

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