H13 mold steel, what material is H13, H13

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齐全

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合理

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100%正品

Material properties: Steel 3 is an American standard hot work die steel and electroslag remelted steel. This steel is a hot work die steel that is both strong and tough and is commonly used in the world. It has high hardenability and resistance to hot cracking. This steel contains a high content of carbon and vanadium, has good wear resistance, and has relatively weakened toughness. It has good heat resistance, good strength and high wear resistance and toughness at higher temperatures. It also has excellent comprehensive mechanical properties and high tempering resistance.
The forging blank must be forged on six sides, and the forging ratio must be greater than. It has high hardenability and toughness, excellent thermal crack resistance, can be water-cooled in the workplace and has medium wear resistance. Carburizing or nitriding processes can also be used to improve its surface hardness, but it should be slightly reduced. The ability to resist hot cracking is due to its low carbon content and poor secondary hardening ability during tempering. It has the ability to resist softening at higher temperatures, but when the service temperature is higher than ℃, the hardness drops rapidly. The steel has small heat treatment deformation and has medium and high processability and moderate resistance to decarburization.
The maximum operating temperature of this steel should not exceed ℃ and be lower than 3 steel. The thermal strength and thermal stability of this steel are also lower than 3 steel, and the impact toughness of the steel is higher than 3 steel, sometimes even more than twice as high.
This steel is currently developing in the direction of low and high. The surface modification of this steel mainly includes ferrite nitrocarburizing or sulfur nitrocarburizing and physical vapor deposition hard coating. The more superior method is Properly combine these methods.
Delivery status
Quenched and tempered state, hardness ~.
Chemical composition
According to American standards~, the chemical composition (mass fraction) of this steel is: 3,.,.,.,.,.,.,.3,.3.
Reference corresponding grades
American standard grade, Chinese B standard grade, Japanese standard grade, Japanese Hitachi standard grade, Japanese Fujikoshi () standard grade, German standard material number. Austrian Bailu (B) standard grade, Taiwan, China Ronggang (R) standard grade, Swedish standard grade RR patented steel, Swedish ASSAB (B) standard grade/
Hot processing specifications
Heating temperature - ℃, starting temperature - ℃, end temperature ℃.
General quenching specifications
~℃~The furnace is cooled to the left and right sides and is air-cooled.
Specifications for batch isothermal spheroidizing annealing of blanks
Heating slowly, ~℃3~ and then furnace cooling to ℃, air cooling after coming out of the furnace, hardness B, eutectic carbide grade 3.
Specifications for softening treatment of cold pressed blanks
~℃3~Slowly cool to ℃ at a cooling rate of ~℃/, and then come out of the furnace for air cooling. The hardness is B before treatment and the hardness is B after treatment.
Specifications for solution treatment + quenching + high temperature tempering
Solution treatment temperature ~ ℃, high temperature tempering temperature ℃, air cooling after insulation. This pretreatment process has a good effect on eliminating chemical component segregation and improving tissue uniformity.
General quenching and tempering specifications
Preheating temperature ℃, ℃, quenching temperature ~ ℃, oil or air cooling hardness ~, tempering temperature ℃, tempering twice, hardness ~.
Typical application examples
) Used to make forging dies, hot extrusion dies, and precision forging dies with large impact loads.
) Used for die-casting molds of aluminum, copper and their alloys.
3) After 3 steel punches are carburized, the service life of the steel punch is increased from ~3 times to ~ times
) It is used for high-temperature thermosetting plastic molds.