allo tool steel 4Cr5MoSiV H11 1.2343 Quality standard: GB,AISI,ASTM,DIN,JIS. 1. Quality standard AISI, GB,2.Delivery as clients' requirements; on ... weary property and abrasion.4. The steel is used to make casting die and hot extrusion die , tool for punching, mandril, press machine ... -1.20Mn 0.20-0.50Cr 4.75-5.50Mo 1.10-1.60v 0.30-0.60P ≤0.030S ≤0.030 hot-work Die steel ...