Is the higher hardness of the wear-resistant steel plate the more wear-resistant it is?


Release time:

2022-06-22

The hardness of wear-resistant steel plate is an important standard for measuring its wear resistance. The hardness of wear-resistant steel plate is divided into micro hardness and surface hardness. The microhardness of carbides in the wear-resistant layer of wear-resistant steel plate can reach HVL 700 ~ 2000, and the surface hardness can reach HRC 58 ~ 62. The wear-resistant layer of the steel plate is mainly composed of chromium alloy, and other alloying components such as manganese, molybdenum, niobium, nickel and so on. are also added. The carbides in the metallographic organization are distributed in the form of fibers, and the direction of the fibers is perpendicular to the surface. However, wear-resistant steel plate is not the higher the hardness wear resistance is about good, wear-resistant steel plate hardness is wear-resistant steel plate good abrasion resistance basis, but the relationship between hardness and abrasion resistance is not directly proportional, wear-resistant steel plate will be mainly wear-resistant, because the wear-resistant steel plate has a hard texture, but also has a soft substrate, generally in the process of wear and tear, there will be some shedding off the material, the substance will be integrated into the soft substrate, and it will not surface to cause much damage. If the degree of organization of the matrix is also very high, the shedding off substances in the mutual movement will be abrasive, which will destroy the matrix organization more quickly. In our daily choice of wear-resistant steel plate, need to choose according to their actual working conditions, to remember is not the higher hardness of the more wear-resistant, if it is in the case of stronger impact, or choose a low hardness of manganese steel plate effect is better.

The hardness of wear-resistant steel plate is an important standard for measuring its wear resistance. The hardness of wear-resistant steel plate is divided into micro hardness and surface hardness. The microhardness of carbides in the wear-resistant layer of wear-resistant steel plate can reach HVL 700 ~ 2000, and the surface hardness can reach HRC 58 ~ 62. The wear-resistant layer of the steel plate is mainly composed of chromium alloy, and other alloying components such as manganese, molybdenum, niobium, nickel and so on. are also added. The carbides in the metallographic organization are distributed in the form of fibers, and the direction of the fibers is perpendicular to the surface. However, wear-resistant steel plate is not the higher the hardness wear resistance is about good, wear-resistant steel plate hardness is wear-resistant steel plate good abrasion resistance basis, but the relationship between hardness and abrasion resistance is not directly proportional, wear-resistant steel plate will be mainly wear-resistant, because the wear-resistant steel plate has a hard texture, but also has a soft substrate, generally in the process of wear and tear, there will be some shedding off the material, the substance will be integrated into the soft substrate, and it will not surface to cause much damage. If the degree of organization of the matrix is also very high, the shedding off substances in the mutual movement will be abrasive, which will destroy the matrix organization more quickly.
  
In our daily choice of wear-resistant steel plate, need to choose according to their actual working conditions, to remember is not the higher hardness of the more wear-resistant, if it is in the case of stronger impact, or choose a low hardness of manganese steel plate effect is better.

 

 

Key words:

Wear-resistant, steel plate, hardness, substrate


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