Q: I have a load bearing application in that requires a material that can handle temperatures at plus/minus 600C? Would Titanium grade 5 work? I know it’s super strong.
A: Titanium is a strong material, especially grade 5 which is half the weight and 4 times as strong as 316 steel, but it actually won’t work in temperatures that high. Titanium fasteners have a limit of around 450C. Two of your best options for high strength at that temperature are A286 and Inconel 718, which both can be used at temperatures up to 700C. I don’t know what the strength requirements of your application are but A286 has a yield strength of 111ksi and and Inconel 718 a yield of 175 ksi.