P20 steel–P20 Mold Steel is a versatile, low-alloy tool steel that is characterised by suitable sturdiness at slight energy ranges. P20 is usually sold within the pre-hardened situation at a hardness of about three 100 HBW. The P20 Grade steel is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc.The P20 steel is … Continue reading PLASTIC MOLD STEEL-1.2311 Grade.