Cold working mold steel:

Hardness: usually high, generally between 58-64 HRC.

Strength: High yield strength and tensile strength to withstand greater pressure and impact forces.

Wear resistance: Good to cope with frequent friction and wear.

Resilience: relatively low, but still requires a certain level of toughness to prevent brittle fracture.

Thermal stability: The requirement is relatively low because the operating temperature is usually low.

For example, Cr12MoV cold working die steel has a hardness of 60-62 HRC and a tensile strength of approximately 1800-2100 MPa.

Hot work mold steel:

Hardness: generally in the range of 40-52 HRC.

Strength: It has high high-temperature strength and yield strength.

Wear resistance: Good, able to withstand wear at high temperatures.

Toughness: Good to withstand thermal shock and alternating loads.

Thermal stability: Excellent, able to maintain stable organization and performance at high temperatures.

Thermal fatigue performance: Good, able to resist damage caused by repeated heating and cooling.

For example, H13 hot work mold steel still has good strength and hardness at around 600.

Plastic mold steel:

Hardness: varies between 28 and 55 HRC depending on specific usage.

Strength: Moderate, meeting the requirements of injection molding and other processes.

Wear resistance: determined according to the requirements of plastic products.

Toughness: Good, preventing mold cracking during use.

Polishing performance: Excellent to achieve a smooth surface of plastic products.

Corrosion resistance: In some cases, good corrosion resistance is required.