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 considered one of the most effective materials for applications involving heavy impact and high-pressure wear. One of its key features is work hardening, which makes it superior to other wear-resistant materials in such conditions. When subjected to high impact or significant contact stress, the surface of the steel undergoes rapid hardening, increasing its hardness from approximately HB 200 to HB 500. This creates a highly wear-resistant outer layer, while the inner structure—composed of austenite—retains excellent impact toughness. This material typically contains a high carbon content, with carbon levels ranging between 0.9% and 1.45%, and manganese content between 11% and 14%. Due to its tendency to cold work and strengthen easily, high-manganese steel is difficult to machine or cut, making casting the most common production method. However, in 2002, Shanghai introduced Mn13 rolled steel plates, which offer significantly improved performance compared to traditional castings and standard wear-resistant steels. 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 grades of ZGMn13: ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, and ZGMn13-5. Each grade has slightly different compositions and properties, tailored for specific applications. Internationally, similar materials include EN standard X120Mn12, DIN standard 1.3401, and ASTM A128. While Mn13 rolled steel plates are widely used, they currently lack a national standard in China and are instead governed by TISCO's corporate standard Q/TX046-2009. High manganese steel is particularly useful in industries such as mining, construction, and cement processing, where equipment is constantly exposed to abrasive and impact-heavy environments. Its unique combination of wear resistance and toughness makes it a preferred choice for critical components that require long service life and minimal maintenance. This information is sourced from Baidu Encyclopedia.
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