T9 performance and T8 and $literal similar, can be used for forging processing, forging network recommended. T9 is used to fabricate tools such as center punch, punching die, punching head, wood cutting tools and feed machine blades, chisel for rock, etc.

Name: T9 carbon tool steel

Brand: T9

Standard: GB/T 1298-1986

Application: high hardness, a certain toughness tools

Chemical composition

Carbon C: 0. 85~0. 94

Si si: ≤0. 35

MN MN: ≤0. 40

Sulphur S: ≤0. 030

P: ≤0. 035

CR CR: Promising residual content ≤0. 25, ≤0. 10 (when making lead bath quenching steel wire)

Ni ni: Promise residual content ≤0. 20, ≤0. 12 (when making lead bath quenching steel wire)

Copper cu: promised residual content ≤0. 30, ≤0. 20 (when making lead bath quenching steel wire)

Note: The residual content of CR Ni Cu≤0 is agreed. 40 (when making lead bath quenching steel wire)

Mechanical properties

Hardness: annealing, ≤192HB, indentation diameter ≥4. 35mm; quenching, ≥62HRC

Specification for heat treatment: sample quenching 760~780℃, water-cooled.

Delivery Status: The steel is delivered in a annealed state. By mutual agreement, can also be without annealing state delivery.