AUSTENITIC STEEL CASTING AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an austenitic steel casting having satisfactory machinability, and to provide its production method. SOLUTION: In the austenitic steel casting, the matrix phase is composed of an austenite phase composed essentially of Fe-Ni-Cr. It is characterized in that the hardness of the surface layer in the face freed from scale is≤350 HV and/or the thickness of the work hardened layer in the surface layer of the face freed from scale is≤0.05 mm (inclusive of zero). COPYRIGHT: (C)2006,JPO&NCIPI