... tempering: Tempering °C400500550600HRC54555450 6.Characteristic of 1.2344 alloy steel: 1)high hardenability, high toughness, good ductility, high ... in air-quenching excellent corrosion resistance3)Hot-work steel with good high temperature strength and high wear ... trimming tools, plastic moulding dies, severe cold punching, scrap shears, shrink rings, wear resisting parts, cold heading die casings ...