Standard: GB / T 1299-1985
● Features and application:
8MnSi measuring and cutting of steel, the steel on the basis of the T8 steel increases hardenability. 8MnSi alloy tool steel is mainly used for woodworking tools chisels, saws and other tools, also used saws, veneer cutter body and so on.
● Chemical Composition:
Carbon C: 0.75 ~ 0.85
Si Si: 0.30 ~ 0.60
Manganese Mn: 0.80 ~ 1.10
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.030
Ni: to allow the residual content of ≤ 0.25
Copper Cu: to allow the residual content of ≤ 0.30
● Mechanical Properties:
Hardness: Annealed, ≤ 229HB, indentation diameter ≥ 4.0mm; quenching, ≥ 60HRC
● Heat treatment and microstructure specifications:
Heat treatment specifications: sample quenching 800 ~ 820 ℃, oil cooling.