Impact vs. Wear: A Guide to Selecting Materials for Crusher Parts under Different Crushing Conditions

In the selection of crusher accessories, high manganese steel and high chromium steel are suitable for different working conditions due to their unique material properties. High manganese steel accessories are known for their excellent impact resistance and toughness, and are particularly suitable for high-impact crushing operations that handle large, hard materials. When the equipment is running, high manganese steel will undergo "work hardening" under the action of continuous impact loads, and the surface hardness will be significantly improved, thus forming a self-protection mechanism that becomes harder with use. This characteristic makes it an ideal choice for jaw crusher liners, crushing walls, hammer heads and other parts that are subject to severe impact, especially for the coarse crushing process of high-hardness materials such as granite and basalt. In contrast, high chromium steel accessories are known for their excellent wear resistance, and the high-hardness carbides evenly distributed inside them can effectively resist the abrasive effect of materials. This type of accessories is more suitable for working conditions that are continuously subjected to abrasive wear, such as sand making machine hammers, cone crusher mortar walls and other fine crushing operations, and is particularly outstanding when handling highly abrasive materials such as quartzite and river pebbles. It is worth noting that although high chromium steel has extremely high hardness, its toughness is relatively weak. Therefore, when choosing, it is necessary to comprehensively consider factors such as the characteristics of the material, the type of crushing equipment, and the impact strength in actual production. With the advancement of material science, composite accessories that combine the advantages of the two materials have now appeared. By using different materials in different parts to optimize the overall performance, this provides more options for equipment maintenance under special working conditions.