China 4CR13moV features high hardness after quenching than 3Cr13 some good corrosion resistance. Use for cutting, nozzle, valve seats and so on. 1Cr17Ni2 features strong resistance to nitric acid and organic acid corrosion. Use as a high hardness and high wear resistance of heat pumps, valves, valve bearings, medical equipment, spring and other parts
● Chemical Composition:
Carbon C: 0.36 ~ 0.48
Si Si: ≤ 0.60
Manganese Mn: ≤ 0.80
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: 12.00 ~ 14.00
Ni: to allow containing ≤ 0.60
Mechanical properties
● Mechanical Properties:
Hardness: Annealed,, ≤ 201HB, indentation diameter of 3.9 ~ 4.3mm; quenching, ≥ 50HV
● Heat treatment and microstructure specifications:
Heat treatment specifications: 1) annealing, 800 ~ 900 ℃ slow cooling or rapid cooling of about 750 ℃; 2) quenching, 1050 ~ 1100 ℃ oil cooling
; 3) temper, 200 ~ 300 ℃ fast-cooling.
Microstructure: Organizing for the martensitic type.
