| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Ni-based alloy for a forged part of a steam turbine excellent in high-temperature strength, forgeability and weldability, and to provide a rotor blade of steam turbine, a stator blade of steam turbine, a screw member for steam turbine and a pipe for steam turbine which are made of the Ni-based alloy for a forged part of a steam turbine. Ž<P>SOLUTION: The Ni-based alloy for forged part of steam turbine excellent in high-temperature strength, forgeability and weldability includes, in percentage by mass, 0.01 to 0.15 of C, 18 to 28 of Cr, 10 to 15 of Co, 8 to 12 of Mo, 1.5 to 2 of Al, 0.1 to 3 of Ti, 0.001 to 0.006 of B, 0.1 to 0.7 of Ta and the remaining part of Ni and inevitable impurities. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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