First up: aerospace
The HPAs used in aerospace are generally required to be resistant to high temperature, have excellent strength, or a combination of both Additionally, grades are selected for their ability to resist corrosion, oxidation, high pressure and thermal shock.
Many are heat treatable, offering further improvements in certain mechanical properties when compared with material that has been annealed or in cold worked condition.
Application areas include afterburner parts, valves, bolts, and heat exchangers.
Read the full article in DPA's June 2025 issue