Description: Thermodur® E38K is an electro slag remelted (ESR) modified H-11 die steel, developed for hot working applications where maximum mechanical strength (toughness) properties are required. Characteristics: Superior toughness; Excellent hardenability; Good thermal conductivity; and Good polishability Applications: Large high pressure die casting dies, Large hot forging dies and Aluminum extrusion tooling Stress Relieving (Heat Treatment): 1200°F for 2 hours; Cooling: Cool slowly to 930°F in air; Hardness: <230 HB Hardening (Heat Treatment): 1850°F- 1886°F Hold at temperature for 30 minutes; Cooling: Vacuum quench at 50°F/ min, to 1000°F then cool to below 150°F; Hardness: <54 HRC Quenched Information provided by Schmolz + Bickenbach |