The W2Mo9Cr4VCo8 steel code is M42. It is a U.S. grade superhard cobalt high-speed tool steel. The mass fraction of vanadium in M42 steel is not high (1%), and the mass fraction of cobalt is high (8%). It is mostly dissolved in the matrix and uses high matrix hardness to improve wear resistance. The steel has good hardness, hot hardness, abrasion resistance and grinding properties. The heat treatment hardness can reach 67 ~ 70HRC, but there are also special heat treatment methods to obtain a hardness of 67 ~ 68HRC. This can improves its cutting performance (especially intermittent cutting) and improves impact toughness.
Characteristics of M42:
1.It is with high red hot hardness.
2.High wear resistance and cutting ability.
3.High impact toughness, fine and uniform grain, high toughness.
M42 application:
It is suitable for manufacturing various abrasion and impact resistant tools for powerful cutting. Advanced dies, screw dies, punches that require toughness and complex shapes. Tool industry: scraper, hobbing knife, iron knife, drill, etc.Forging industry: forging die.
Our OTAI is the Chinese supplier and stockholders for M42 High speed steel. We could supply it in round bar, plate, flat, square and hexagon shape. We are the very valuable and trustable supplier who supplied for the Thyssen Krupp and Chinese ordnance industry group. We exported the special steel to more than 30 countries all over the world for more than 20 years already, and they are passed the standard of America, Germany, Russia and Japan.
