CPM S90V is a steel grade developed by the American company Crucible Industries, known for its high-quality specialty steels. It is made using powder metallurgy (CPM stands for Crucible Particle Metallurgy), ensuring exceptional fineness and purity. Compared to MagnaCut, a highly popular steel in recent years also made in the U.S., CPM S90V offers superior and long-lasting edge retention, surpassing MagnaCut in this area.