武生特殊鋼材株式会社 日本語

Cobalt Special (CoSP®)

Cobalt Special (CoSP) is a super high-grade stainless steel for cutlery that provides outstanding corrosion resistance, wear resistance, grindability and workability achieved through a special remelting method that results in a uniform composition and fine dispersion of carbides.

It contains 1.1% carbon (C) and 16% chromium (Cr), exerting incomparable corrosion resistance*.
Tungsten (W) improves tempering resistance, molybdenum (Mo) contributes to further improvement of corrosion resistance, and vanadium (V) enables a finer microstructure. Cobalt (Co) strengthens the matrix and is effective in maintaining a long-lasting sharp edge. *According to our data.

The significant advantage of Cobalt Special is that the microstructure obtained by this exceptional steelmaking technique maximizes the effect of each added element.