Alloy tool steel: Cr12MoV
Standard: GB / T 1299-1985
● Features and application:
Cold work die steel, steel hardenability, quenching and tempering the hardness, wear resistance, high strength than Cr12. Cross-section for the manufacture of large, complex shape, under heavy working conditions with a variety of Die and tools, such as punching die, trimming die, trim molding, deep drawing steel mold, circular saw, standard tools and gauges, thread rolling die and so on.
● Chemical Composition:
Carbon C: 1.45 ~ 1.70
Si Si: ≤ 0.40
Manganese Mn: ≤ 0.40
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.030
Chromium Cr: 11.00 ~ 12.50
Ni: to allow the residual content of ≤ 0.25
Copper Cu: to allow the residual content of ≤ 0.30
Vanadium V: 0.15 ~ 0.30
Mo Mo: 0.40 ~ 0.60
● Mechanical Properties:
Hardness: Annealed, 255 ~ 207HB, indentation diameter of 3.8 ~ 4.2mm; quenching, ≥ 58HRC
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) quenching, 950 ~ 1000 ℃ oil cooling; 2) quenching 1020 ℃, 200 ℃ tempering 2h.
Microstructure: Zhu fine granular body + carbide.
● Delivery status: the status of delivery of steel to annealing.