Wear plate knowledge: What is HIGH MANGANESE STEEL?
Wear Plate Knowledge: What is High Manganese Steel? High manganese steel, also known as high-manganese wear-resistant steel, is a specialized material designed for applications involving heavy impact and high-pressure wear. It stands out among other wear-resistant materials due to its unique work-hardening properties. When subjected to high impact or significant contact stress, the surface of the steel undergoes rapid hardening, increasing its hardness from around HB 200 to HB 500. This creates a highly wear-resistant outer layer while maintaining the inner structure of austenite, which retains excellent impact toughness. The composition of high-manganese steel typically includes a high carbon content, with carbon ranging from 0.9% to 1.45%, and manganese content between 11% and 14%. These properties make it ideal for environments where extreme wear is expected. However, due to its tendency to cold work and strengthen easily, high-manganese steel is challenging to cut or machine, which is why most components are manufactured through casting. In 2002, Shanghai introduced Mn13 rolled steel plates, offering improved performance compared to traditional castings and standard wear-resistant steels. These rolled plates provide better mechanical properties and are more suitable for industrial applications requiring durability and strength. The designation "ZG" is used in China to indicate cast steel, followed by the manganese content. According to GB/T 5680-1998, there are five common grades: ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, and ZGMn13-5. Each grade has slightly different compositions and mechanical properties, tailored for specific usage scenarios. Internationally, similar materials include EN X120Mn12, DIN 1.3401, and ASTM A128. While these international standards are widely recognized, Mn13 rolled steel plates currently lack a national standard in China, with only TISCO's corporate standard Q/TX046-2009 available for reference. This information is sourced from Baidu Encyclopedia, a well-known online resource for general knowledge and technical details.
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