... 255HBS,EAF or ESR black surface HOT WORK TOOL STEELH13/DIN1.2344 hot work mould steel feature:1) ... ~1.203) Delivery condition:EAF or ESR;hot rolled or forging;black,machined surface;Anneling,Hardness ... and so on.6)Application:Used for making hot squeezing mould,forging mould,embedded lump,like: ... other alloy and other alloy casting mould7)Ultrasonic test standdards:GB/T6402-1991,CLASS 18)Payment terms ...