专为具有非常高的导热性，在高温下高屈服强度和高硬度的特点而设计的高性能热作工具钢，同时兼备良好的韧性、耐磨性和回火性。

It is a high performance hot work steel, specially designed to feature very high thermal conductivity, high yield strength at high temperatures and high hardness, combined with good toughness, wear resistance and tempering resistance.