Alloy 316H (UNS S31609) is a high carbon modification of Alloy 316 developed for use in elevated temperature service. The alloy has 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. The Socket Welding Coupling is composed of a socket, a socket, a bending part, a socket slot, etc., and it is characterized in that there is a socket slot in the socket, and the socket and socket are respectively located at both ends of the curved part; Compared with the prior art, the design is reasonable, the operation is simple, the practicability is strong, and the operation quality and convenience are improved.Socket Welding Coupling can be widely used in pipes of different diameters, including single-way, three-way, four-way, etc., and can also be used for water meters and valves. Due to the use of socket structure, the pipe joint reduces the cost, installation, use,maintenance is very convenient, and at the same time has a very high leakage prevention ability, which has a great market prospect.