Alloy 316H (UNS S31609) is a high carbon modification of Alloy 316 developed for use in elevated temperature service. The alloyhas higher strength at elevated temperatures and is used for structural and pressure vessel applications at temperatures above932°F (500°C). The higher carbon content of 316H also delivers higher tensile and yield strength than 316/316L and its austeniticstructure provides excellent toughness down to cryogenic temperatures.The corrosion resistance of Alloy 316H is comparable to Alloy 316/316L and is superior to Alloy 304/304L in moderately corrosiveenvironments. It is often used in process streams containing chlorides or halides. The alloy resists atmospheric corrosion, aswell as, moderately oxidizing and reducing environments. It also resists corrosion in polluted marine conditions.Alloy 316H is non-magnetic in the annealed condition. It cannot be hardened by heat treatment, however the material will hardendue to cold working. It can be easily welded and processed by standard shop fabrication practices. Stainless steel tee is the key pipe fitting used for the connection of pipeline branches, which is divided into two categories: equal diameter tee and different diameter tee according to the difference in the diameter of the pipe end. The product adopts hydraulic expansion, hot pressing forming or welding forming and other manufacturing processes, and the applicable materials cover stainless steel materials such as 304 and 316L, and conforms to more than ten international standards such as national standard (GB/T12459) and American standard (ASME B16.9). As the core component of the industrial pipeline system, the stainless steel tee undertakes the functions of diversion and confluence, pressure balance and direction conversion, and is widely used in petrochemical, natural gas transmission, power equipment, food and pharmaceutical industries, etc., and its corrosion resistance is enhanced by pickling and passivation processes