Details
Product Name: carbon tool steel
Model: T11
Standard: GB / T 1298-1986
● Delivery status: the status of delivery of steel to annealing. By mutual agreement, may not annealed state delivery.
Chemical composition
Carbon C: 1.05 ~ 1.14
Si Si: ≤ 0.35
Manganese Mn: ≤ 0.40
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: promised to the residual content of ≤ 0.25, ≤ 0.10 (when manufacturing lead bath quench wire)
Ni: to promise the residual content of ≤ 0.20, ≤ 0.12 (when manufacturing lead bath quench wire)
Copper Cu: agreed to the residual content of ≤ 0.30, ≤ 0.20 (when manufacturing lead bath quench wire)
Note: The promise of residual content of Cr Ni Cu ≤ 0.40 (when manufacturing lead bath quench wire)
Mechanical properties
Hardness: annealed state, ≤ 207HB, indentation diameter ≥ 4.20mm; quenching, ≥ 62HRC
Heat treatment process
Heat treatment specifications: sample quenching 760 ~ 780 ℃, water-cooled.
