High-performance stainless steel tubes like ASTM A213 TP317 are made for applications where exceptional mechanical strength and resistance to corrosion are essential. TP317 is a member of the austenitic stainless steel family and can be made as seamless or welded tubing. It has a higher molybdenum content than 316 stainless steel, which makes it more resistant to pitting and crevice corrosion in settings with a lot of chloride.