X13T6W martensitic steel X13T6W steel martensitic stainless steel for the French, Ober. Yar'Adua steel smelting process on the use of ESR, is a mirror of high hardness (48-50HRC) stainless steel types, mainly used in those demanding the mold polishing, such as CDs, lenses, etc.; cold steel SRV2 is ESR steel, cold steel electroslag remelting process used is very rare, high-temperature tempering after high hardness up to 62HRC In some applications can not only replace the stamping high-speed steel, tool steel powder can even replace; glass mold steel main APXV, this steel has excellent polishing, corrosion and abrasion resistance, mainly used in the manufacture of glass containers mold manufacturing.