8418

ASSAB 8418 die steel is a chromium, molybdenum, vanadium, high-performance hot work die steel, with good resistance to thermal fatigue cracking, thermal shock cracking, thermal abrasion, plastic deformation of the performance of the ASSAB 8418 has the toughness and ductility and the various isotropic, excellent resistance to tempering softening properties, high-temperature strength, hardenability, and excellent dimensional stability of the heat treatment with a good coating properties.

8418 die steel is a hundred ASSAB TOOLING research and development and production of a high-quality hot work die steel, its use of the production and refining technology, which makes 8418 as the development of die casting die steel and has excellent resistance to thermal fatigue cracking, thermal shock cracking, thermal wear, plastic deformation properties. These unique properties make it become die casting, hot forging, hot extrusion mold steel choice. In the punching process, the mold must have a certain toughness. When punching and cutting thick plates and strips, the die punching edge will be subjected to high tensile stress, so the die must have high toughness in order not to crack. The thicker the thickness of the processed part of the mold toughness requirements are higher, at this time it is necessary to choose high toughness and impact resistance of the mold material, at the same time must also have good wear resistance to ensure reasonable economic production operation.

Thermal cracking is a very common failure mechanism in the die casting and hot forging industry. The ductility of ASSAB 8418 makes it resistant to thermal cracking. In addition, the outstanding toughness and hardenability of 8418 further improves the resistance to thermal cracking, and the hardness of the mold can be increased appropriately (+2HRC) if thermal shock cracking is not the main factor of mold failure. As 8418 enhanced resistance to the main failure mechanisms of the mold [such as: thermal fatigue, cracking, thermal wear, plastic deformation] ability, so it significantly improves the mold life and get better economic benefits of the mold. 8418 is the die steel of choice for high performance requirements in the die casting, hot forging and hot extrusion industries.