Characteristics and Applications of 3Cr2W8V Hot Working Die Steel

3Cr2W8V Hot Working Die Steel possesses high strength and hardness, good resistance to cold and hot fatigue, excellent hardenability, high thermal stability, wear resistance, and oxidation resistance. However, its toughness and ductility are relatively inferior. It has a wide range of applications and is primarily used for manufacturing molds that operate at high temperatures, under high stress, and without being subjected to impact loads, such as die-casting molds, hot extrusion molds, precision forging molds, and non-ferrous metal forming molds.
Characteristics
High Strength and Hardness: 3Cr2W8V steel exhibits high strength and hardness, enabling it to maintain stable performance at elevated temperatures.
Good Resistance to Cold and Hot Fatigue: This steel grade can resist fatigue cracks caused by alternating cold and hot conditions, making it suitable for long-term use in high-temperature environments.
Excellent Hardenability: The steel can be fully hardened when the section thickness is within 100 millimeters, ensuring uniform performance throughout the mold.
High Thermal Stability: It retains high hardness and strength at high temperatures, making it suitable for manufacturing high-temperature molds.
Wear and Oxidation Resistance: The presence of a significant amount of carbide-forming elements, such as chromium, tungsten, and vanadium, enhances the steel's wear and oxidation resistance.
Relatively Poor Toughness and Ductility: Compared to chromium-based hot working die steels, 3Cr2W8V steel has slightly lower toughness and ductility, making it unsuitable for molds that are subjected to impact loads.
Applications
Die-Casting Molds: 3Cr2W8V steel is a commonly used material for die-casting molds, suitable for manufacturing molds for casting metals such as copper, aluminum, and magnesium alloys.
Hot Extrusion Molds: It is used for manufacturing hot extrusion molds that can withstand high temperatures and pressures.
Precision Forging Molds: Suitable for manufacturing precision forging molds that can ensure the accuracy and quality of forged parts.
Non-Ferrous Metal Forming Molds: Used for manufacturing non-ferrous metal forming molds, such as copper alloy extrusion molds.