Rotor blade of turbine rotor and steam turbine of Ni basic alloy and steam turbine for forging part of steam turbine, stator blade of steam turbine, spiral shellfish combination component for steam turbine, and piping null mass for steam

摘要

PROBLEM TO BE SOLVED: To provide a Ni-based alloy for forged parts in a steam turbine excellent in high temperature strength characteristic and forgeability and to provide a turbine rotor, a moving blade, a stationary blade, a screwing member and a piping for steam turbines, which are made by using the Ni-based alloy for forged parts of the steam turbines.;SOLUTION: The Ni-based alloy for forged parts of the steam turbine, is composed, by mass, of 0.01-0.15% C, 16-26% Cr, 10-15% Co, 2-7% Mo, 0.3-2% Al, 0.3-3% Ti, 0.001-0.006% B, 9-12% W+Mo and the balance Ni with inevitable impurities.;COPYRIGHT: (C)2011,JPO&INPIT