Normalize 925°C (1700°F) in 32 mm rounds, machine to 13.7 mm rounds, pseudocarburize at 925°C (1700°F) for 8 hours, box cooled to room temperature, 820°C reheat, oil quench, 150°C (300°F) temper, tested in 12.8 mm rounds |
B.S. 805 A 20, UNS G86220, ASTM A322, ASTM A331, SAE J404, SAE J770, DIN 1.6543 |