Patent ID: 6458318
Filing Date: 2002-10-01
Classification: C22C

Abstract:
A heat resistant Ni base alloy comprising on a mass % basis:C: 0.1% or less, Si: 2% or less, Mn: 2% or less, S: 0.005% or less, Cr: 10to25%, Al: 2.1 to less than 4.5%, N: 0.055% or less, 0.001 to 1% in total of one or more elements of B: 0.03% or less, Zr: 0.2% or less and Hf: 0.8% or less, 2.5 to 15% in total of one or more elements of Mo: 0.01 to 15% and W: 0.01 to 9%, Ti: 0 to 1%, either one or both of Mg and Ca are contained in an amount of 0.0005 to 0.01% and 0.0005 and 0.01%, respectively, Fe: 0 to 10%, Nb: 0 to 1%, V: 0 to 1%, Ta: 0 to 2%, Y: 0 to 0.1%, La: 0 to 0.1%, Ce: 0 to 0.1%, Nd: 0 to 0.1%, Cu: 0 to 5%, Co: 0 to 10%, and the balance being substantially Ni.