What is 8407 die steel?The advantages and characteristics of 8407 steel
Excellent processability and polishing properties.
Excellent hardenability
Good dimensional stability of heat treatment
International standard Aisi high quality H13
工厂硬度软退火至180HB。
Characteristics of 8407 Die Steel
8407 steel has uniform structure, high purity, high toughness and good heat resistance, good health, good coordination of heat and toughness, resistance to high temperature molten metal erosion, excellent high temperature tempering resistance to emulsion and heat fatigue, strong crack resistance, excellent temperature strength, high toughness and ductility, good isotropy, excellent processability and polishability, excellent hardenability and good dimensional stability during heat treatment.
When welding steel, preheat the workpiece to 325~350 °C, and the temperature of the welding area shall not exceed 475 °C. Welding should be tempered in time, and the cooling rate of tempering cooling is 20~40 °C/H at the beginning of 2H. During the welding process, the temperature difference between the solder joint and the surrounding area should be ≤ 150 °C. In hardfacing, the first and second layer field currents require the bead to be thin to disturb the affected area. When welding, it is recommended to use soft tires, such as the 29CR-9NI series AMSE312 of American Mma, which can improve the ability to resist crack propagation.