How Do I Know What the Material Strength Is at an Elevated Temperature?
I am designing a stirling engine using stainless steel foil for a cylinder head material. The stainless steel foil is .002″ thick, and is type 304 with a max temp rating of 1800*F. The bore of the cylinder is 85.5mm. The foil will be secured to the cylinder with a flange which exposes as much as the surface area as the bore.
My question is……how do I know what the material strength is at an elevated temperature? I need to find out what my pressurisation limit is with the material so I don’t shoot my eye out. I plan to operate it to about 1200*F max. (allowing for hot spots)