SS 347H Flanges are flange fittings manufactured of stainless steel grade 347H, a stabilized austenitic stainless steel that contains columbium (niobium) and tantalum. These flanges have exceptional high-temperature strength and resistance to intergranular corrosion. SS 347H Flanges are often used in applications requiring high temperatures, such as thermal processing equipment, exhaust systems, and chemical processing plants.

347H stainless steel flanges connect pipes or fittings in industrial applications that demand high temperature and corrosion resistance. They provide a secure and leak-free connection, allowing fluids and gases to flow efficiently through piping systems. 347H stainless steel flanges are widely used in the petrochemical, chemical, and power-generating industries, where temperature cycling and exposure to corrosive substances are widespread.

SS 347H is an austenitic type of stainless steel that contains 17-19% chromium, 9-13% nickel, 1.0-1.2% silicon, and 0.30% carbon, as well as trace elements like manganese, molybdenum, and nitrogen. It is well-known for its exceptional corrosion resistance and high-temperature strength, making it perfect for applications requiring exposure to harsh temperatures or corrosive conditions.