AISI D3 1.2080/X210Cr12 Tool Steel

AISI D3 1.2080/X210Cr12 Tool Steel Mechanical properties

The mechanical properties of the AISI D3 1.2080/X210Cr12 Tool Stee show excellent hardness, toughness and fatigue resistance. Its hardness can reach up to 62HRC, with excellent wear and corrosion resistance. In addition, its toughness is also very good, can withstand large impact loads and deformation loads, while maintaining its original strength and hardness. At the same time, it has excellent cutting performance, can be cut into shape, and maintain its accuracy and surface finish. This steel also has excellent heat resistance and is able to maintain its mechanical properties and strength at high temperatures. Ideal for tools, cold working dies, cutting edges and die assemblies that require high wear resistance and stiffness.

Annealing:

Heat uniformly to 850-870°C, soak thoroughly, then slow furnace cool at a rate of not more than 25°C per hour to 650°C. The parts may then be air cooled. This should result in a maximum hardness of brinell 248.

Hardening:

D3 tool steel is extremely sensitive to overheating during hardening – do not overheat.

Pre heat slowly to 800-850°C, the raise rapidly to 950-970°C and soak until completely equalised. Quench in oil.

Stress Relieving:

Heat to 650-700ºC. Soak for 2-4 hours then furnace cool.

Tempering:

Heat uniformly and thoroughly to the desired temperature and hold for 25 minutes per cm of thickness. D3 can be double tempered after intermediate cooling to room temperature.