Austenitic Stainless Steel stabilised by the addition of Titanium. Since this grade is an austenitic, it can not be precipitation hardened; mechincal properties can be increased by cold working only. AIST exhibits good intergranular corrosion resistance.ApplicationsAIST can be used for aircraft components as collector rings, exhaust manifolds, expansion joints. Generally AISC is used for applications subjected to intermittent heating from 450° and 900°C as: pressure vessels, welded structures, high-temp chemical processing and gas turbine blades.