T9 carbon tool steel

Product Name: carbon tool steel
Model: T9
Standard: GB / T 1298-1986
● Features and application:
Similar performance and T8 and T8A, for the manufacture of high hardness, toughness, but there are some severe shock and vibration from tools, such as the center gun, die, punch, wood cutting tools and machine feed blade, cutting rock with a chisel, etc. tool.
● Chemical Composition:
Carbon C: 0.85 ~ 0.94
Si Si: ≤ 0.35
Manganese Mn: ≤ 0.40
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: allow the residual content of ≤ 0.25, ≤ 0.10 (when manufacturing lead bath quench wire)
Ni: to allow the residual content of ≤ 0.20, ≤ 0.12 (when manufacturing lead bath quench wire)
Copper Cu: to allow the residual content of ≤ 0.30, ≤ 0.20 (when manufacturing lead bath quench wire)
Note: The allows the residual content of Cr + Ni + Cu ≤ 0.40 (when manufacturing lead bath quench wire)
● Mechanical Properties:
Hardness: Annealed, ≤ 192HB, indentation diameter ≥ 4.35mm; quenching, ≥ 62HRC