Material Name: SCr420H (SCr22H)
Executive Standard: JIS G4052 1979
● Chemical Composition:
Carbon C: 0.17 ~ 0.23
Si Si: 0.15 ~ 0.35
Manganese Mn: 0.55 ~ 0.90
Sulfur S: to allow the residual content ≤ 0.030
Phosphorus P: to allow the residual content ≤ 0.030
Chromium Cr: 0.85 ~ 1.25
Copper Cu: to allow the residual content of ≤ 0.30
● Mechanical Properties:
Hardness: high-temperature annealing or tempering, ≤ 179HB, indentation diameter ≥ 4.5mm
● Heat treatment and microstructure specifications:
● Delivery status: the rolling or forging state delivery. According to demand-side requirements can also be heat treatment (normalizing, annealing, or tempering) the status of delivery. Delivery status should be indicated in the contract.