Specification 1.Good corrosion resistance and wear resistance. 2.Nice hardenability and machinability. 3.Low impurity content and maintenance costs. 4.High surface precision and can keep it for a long time. Application 1.Suitable for making electric erosion opration mould . 2.For making acidity plastic and good polishing moulds. 3.Abrasion performance and filler moulds, like: Hot hard type plastic mould; long-life mould etc. like: Optical components production; glasses and medical vessel etc . Shape:steel plate/flat bar/round bar Technology:Hot work / Forged/cold drawn Heat treatment:Annealed / Q+T Surface condition:Black/Peeling/Polishing/Machined Delivery condition:Hot rolled or forged, Peeled or black surface