CPM T15 High Speed Steel Composition

CPM Rex T15 powder metallurgy high-speed steel is cobalt-bearing super high-speed steel which can be heat treated to a hardness as high as 67 Rockwell C. A high volume of hard vanadium carbides provides very high wear resistance. The cobalt content provides excellent resistance to softening at high service temperatures (red or hot hardness). These properties translate into extended retention of hard, sharp cutting edges on tools produced from CPM Rex T15. Because of the powder metal (PM) manufacturing, CPM Rex T15 is far easier to grind and exhibits impact toughness that is more than double that of traditional, ingot-cast T15 high-speed steel.



C Mn Si Cr W Mo V Co
1.60 0.30 0.30 4.00 12.00 0.75 4.90 5.00