Chemical Composition

Executive Standard

Bar	Medium Sheet	Seamless Tube
YB/T 5245-1993	GB/T 14995-1994	GB/T 15062-1994

Features

The gold-containing nickel and chromium are relatively high, and the amount of elements (V, Al, Ti) containing the dispersed strengthening phase is relatively small. His heat treatment is mainly formed as "solution treatment". The purpose of achieving lead-free treatment by solution treatment requires multiple cold-pressing processes. In order to eliminate work hardening, to eliminate work hardening, and to restore plasticity, it is also treated by solution treatment. After the parts are welded, they are usually annealed to eliminate internal stress. Due to the high content of chromium and nickel, the oxidation temperature of these alloys is higher, generally up to 900 degrees, but due to the formation of elements in the dispersion strengthening phase, the alloy The amount of the compound is low. The structure after the solution treatment of such an alloy is austenite, so the plasticity is good, and it can be formed by cold pressing; since the carbon content is small, the weldability is also good. These alloys are mainly used to make high-temperature parts with complex shapes, cold-formed forming, and low force, but require high oxidation resistance. The most typical parts are the combustion chambers of turbine engines. ’