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3Cr2W8V(H21)钢是典型高热强性热作模具钢,至今已应用70余年,是我国热作模具钢的传统用钢,应用极为广泛,要求高承载力、高热强性和高耐回火性的压铸模、热挤压模和压型模等模具,常选用此钢种。由于模具和高温工件长期接触,使模具本身温度升高,易造成模具工作面塌陷、磨损、表面
3Cr2W8V (H21) steel is a typical high heat strength hot work die steel, has been used for more than 70 years, is China’s hot work die steel, the traditional steel, a very wide range of applications require high load capacity, high heat resistance and high resistance to tempering Die-casting mold, hot extrusion die and die and other molds, often use this steel. As the mold and long-term exposure to high temperature parts, the mold itself temperature, easily lead to mold surface collapse, wear and tear, the surface