mould steel AISI H13: tool steel flat bar(H13/DIN1.2344/4Cr5MoSiV1),Forging material,Annealing,Hardness:180~255HBH Tool Steel AISI H131.Specification:Round(dia 20-700mm ... erosive attack3.Application of Hot Work Tool Steel: hot squeezing mould, forging mould and embedded lump,, casting mould for aluminum, magnesium and copper, alloy ... -5.501.10-1.750.8-1.20≤0.030 mould steel AISI H13