Patent ID: 9587295
Date: 2017-03-07
CPC Classifications: C21D,C22C,F22B

Claim:
1. Austenitic alloy comprising in weight %: C: 0.01-0.015 Si: 0.40-0.52 Mn: 1.7 Cr: 27 Ni: 33 Mo: 3.4 Cu: 0.9-1.0 N: 0.09-0.11 V: 0.07-0.09 the balance being Fe and unavoidable impurities, wherein the weight % of N and Ni is balanced to fulfill the requirement 40<% Ni+100*% N<45, wherein a creep test at 600° C. and a stress of 160 MPa exhibits a rupture elongation of 71 to 90% and a time to rupture of at least 100,000 hours, wherein a creep test at 650° C. and a stress of 95 to 105 MPa exhibits a rupture elongation of 31 to 70% and a time to rupture of at least 95,000 hours, and wherein the alloy has a microstructure that includes a MX phase.