Heat treatment: Normalized at 925°C (1700°F) in 32 mm rounds, machined to 13.7 mm rounds, pseudo carburized at 925°C (1700°F) for 8 hrs., box cooled to RT, reheated to 805°C (1480°F), oil quenched, 150°C (300°F) temper, tested in 12.8 mm rounds. |
alloy steels, UNS G44270, ASTM A519, SAE J404, SAE J412, SAE J770 |