Castings, Austenitic, for Pressure-Containing Parts1
CF3MA, CF8M, CF3MN, CG3M, CF10, CF10M, CG8M 1900 1040 CF10SMnN, CF8C, CF10MC 1950 1065 CN7M, CG6MMnN 2050 1120 CH8, CH10, CH20, CK20 2100 1150 CK3MCuN, CN3MNB 2200 1200 CE20NA 2225 1220 A Grade shall be quenched in water or the castings may be furnace cooled to 2050°F [1120°C] minimum, held for 15 min …