Alloy 422 stainless bar ke tšepe e thata e thata, e entsoeng ka martensitic e etselitsoeng mocheso oa ts'ebeletso o fihlang ho 1200 F. Sehlopha sena se hlahisa thepa e phahameng ea mechine ka phekolo ea mocheso 'me e fana ka sekhahla se setle le ho hanyetsa oxidation. Lisebelisoa tse tloaelehileng li kenyelelitse libakete le li-blades ka har'a li-turbine tsa mouoane, bolting e phahameng ea mocheso le li-valve le trim ea valve.