Cr12 cold work die steel

Basic Information:

Name: Cr12 cold work die steel

Alloy tool steel: Cr12MoV Standard: GB/T 1299-1985 Scope of application

Cold work die steel, the hardenability of steel, the hardness of quenching and tempering, wear resistance and strength are all higher than that of Cr12. Used to manufacture various cold punching dies and tools with large cross-sections, complex shapes and heavy working conditions, such as punching dies, trimming dies, hemming dies, deep drawing dies for steel plates, circular saws, standard tools and gauges, Thread rolling die, etc.

Physical properties:

Cr12MoV is the national standard, and the German standard is called: X165CrMoV12

chemical composition:

Carbon C: 1.45~1.70

Silicon Si: ≤0.40

Manganese Mn: ≤0.40

Sulfur S: ≤0.030

Phosphorus P: ≤0.030

Chromium Cr: 11.00~12.50

Nickel Ni: allowable residual content ≤0.25

Copper Cu: allowable residual content ≤0.30

Vanadium V: 0.15~0.30

Molybdenum Mo: 0.40~0.60[1]

Mechanical properties:

Hardness: Annealing, 255~207HB, indentation diameter 3.8~4.2mm; quenching, ≥60HRC

Uses of Cr12MoV:

The hardenability, hardness, strength, and toughness of Cr12MoV die steel after quenching and tempering are higher than CR12. The work with a diameter of 300~400mm can be completely hardened, and the quenching deformation is small, but the high temperature plasticity is poor. Cr12MoV is mostly used to manufacture composite molds and tools with large cross-sections, complex shapes, and heavy workloads.

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