310S stainless steel has good high temperature resistance, temperature more than 800, began to soften, the allowable stress began to continue to reduce, the highest operating temperature 1200℃.Nickel (Ni), chromium (Cr) content is high, has good resistance to oxidation and corrosion resistance, acid and alkali resistance, high temperature performance, high temperature resistant steel pipe is dedicated to manufacturing occasions such as the electric heating furnace tubes, stainless steel after the increase of carbon content in austenite size, due to its solid solution strengthening effect strength was improved, the chemical composition of stainless steel austenite size features based on chromium, nickel, add, tungsten molybdenum, niobium and titanium elements, due to its organization is face-centered cubic structure, thus has high strength and creep at high temperature strength.