Normalize 925°C (1700°F) in 32 mm rounds, machine to 25 mm rounds, pseudocarburize at 925°C (1700°F) for 8 hours, box cooled to room temperature, 865°C (1590°F) reheat, oil quench, 150°C (300°F) temper, tested in 12.8 mm rounds |
UNS H86220, ASTM A304, SAE J1268, DIN 1.6543, B.S. 805 A 20 |