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  5. CR7V-L

CR7V-L

  • Warmarbeitsstah
  • Kaltarbeitsstahl
  • Spezialstähle
0 CZK

Characteristics and suitability of use

Special steel Cr, Mo and V alloyed . It is characterized by excellent wear resistance at very high temperatures. Thanks to its high toughness, it is resistant to breaking. Other advantages are very good machinability, hardness in the hardened state up to 57 HRC and the possibility of nitriding. Steel is ideal for use in both hot and cold applications.

Application:

hot work - forging dies and die inserts for forging presses, hot forming tools (hot-stamping), extrusion dies, hot shearing blades

cold work - punches and shearing blades for sheet thicknesses of approximately 6 - 12 mm, rolls, former rolls, bending tools

Complete material data sheet for download

Chemical composition of steel Cr7V-L

Steel gradeChemical composition in %Hardness
soft annealedheat treated
CSiMnCrMoVHB max.HRC max.
Cr7V-L0,420,500,406,501,300,8024057

Heat treatment of steel Cr7V-L

WayTemperature [°C]Procedure
Soft annealinng820-840with slow cooling in furnace
Hardening1030-1040interrupt oil or polymer cooling at approx. 250 - 300 °C, or vacuum harden
Annealing500-700as needed, see tempering diagram, temper to increase toughness 2 - 3x
Stress relievingcca 6502 - 4 hours with slow cooling

Graph

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