The main alloying elements of chromium, tungsten, molybdenum, cobalt, aluminum, titanium, boron, zirconium, etc.. Wherein Cr, Ai, mainly from the antioxidant effects, and other elements have a solid-solution strengthening, precipitation strengthening and grain boundary strengthening effect. 650 ~ 1000 ℃ high temperature high strength with certain anti-oxidation corrosion, due to a high enough temperature strength and resistance to oxidative corrosion, commonly used in the manufacture of aircraft engine blades and rocket engines, nuclear reactors, energy conversion devices. high temperature components. Non-magnetic!