... mm, >=200 mm 2.Classification: Cold Work, Hot-rolled, Hot-forged 3.Certification: ISO 1999-2008High-speed Tool Steel M2, SKH521 ... mm, ≥200 mm2.Classification: Cold Work, Hot-rolled, Hot-forged3.Shape: Rod, Bar, Plate4.Certification: ISO 1999-20085.Application: used for ... that rotate quickly when in use,Components canbe brought to shape by milling,tuming and sawing.chemical composition C 0.95 ...