Standard: GB / T 1220-1992 ● Features and Scope: 9Cr18 stainless steel slicing machine for cutting and shearing knives, blades, high-wear parts and other equipment. ? 

 Chemical composition 
 ● Chemical Composition: C: 0.90 ~ 1.00 Si Si: ≤ 0.80 Manganese Mn: ≤ 0.80 S S: ≤ 0.030 P P: ≤ 0.035 Cr-Cr: 17.00 ~ 19.00 Ni: to allow containing ≤ 0.60 Mo Mo: ≤ 0.75 can be added 

 Mechanical Properties 
 ● Mechanical Properties: Hardness: Annealed, ≤ 255HB; quenching and tempering, ≥ 55HV 

 Heat Treatment 
 ● Heat treatment and microstructure specifications: Heat treatment specifications: 1) annealing, 800 ~ 920 ℃ slow cooling; 2) quenching, 1000 ~ 1050 ℃ oil cooling; 3) temper, 200 ~ 300 ℃ oil, air-cooled. Microstructure: Organizing for the martensite type. ? ● Delivery status: generally heat treatment delivery, the treatment types specified in the contract; not indicated, according to the heat treatment state of delivery.