... Condition of delivery: Hot rolled, Annealed,high-speed steelSpecifications:1.High-Speed Steel W18Cr4VCo5 2.Specification:Thickness:6/8 ... High-Speed Steel W18Cr4VCo5/SKH3/T4/S18-1-2-52)Chemicial composition:C=0.70-0.80,Si=0.20-0.40,Mn=0.10-0 ... .40,P¡¨10.030,S¡¨10.030Ni¡¨10.30,Cu¡¨10.25,Cr=3.75-4 ... .50,Mo=0.40-1.00,V=0.80-1.20,W= ... 17.5-19.00,Co=4.25-5. ...