Among various high-hardness materials, 420 stainless steel is widely used in heavy-duty industrial environments, such as mold manufacturing, mechanical components, cutting tools, and wear-resistant structures. 420 stainless steel belongs to high-carbon martensitic stainless steel. Through proper heat treatment processes (such as quenching and tempering), its hardness can be stabilized at over HRC 50, which is much higher than that of ordinary stainless steel materials. It can withstand long-term impact, friction, and heavy-duty operations.
Compared with the common austenitic stainless steel, 420 stainless steel plate has higher strength and better resistance to deformation. It is not prone to bending or wearing in high-stress environments. At the same time, it also has certain corrosion resistance and can be used in lubricating oil, high humidity or weakly corrosive environments, thereby extending the lifespan of industrial equipment and reducing maintenance costs.
In the heavy industry sector, when selecting materials, not only hardness but also processing performance and cost-effectiveness need to be considered. The 420 stainless steel, while maintaining high hardness, still possesses machinability and is suitable for precision processing and various surface treatments. It is one of the ideal materials for high-strength industrial applications.
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