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.

Swaged nipple also known as reducing nipple, it is a pipe connection made by forging process. It is characterized in that the diameter of one or both ends gradually decreases to a smaller inner diameter to facilitate connection with other pipes of different diameters. It is usually made of high-quality metal materials such as carbon steel, alloy steel or stainless steel, with a specially designed tapered or arc-shaped reduction section inside, which can ensure good fluid flow characteristics and effective sealing between pipes. Reducer pipes are widely used in various industrial fields, especially in the following scenarios. High-pressure oil and gas: used to connect pipelines of different diameters to ensure smooth transmission of fluids. Chemical industry and electric power: In high-pressure and high-temperature environments, swaged nipple can provide stable connections to ensure safe operation of the system.

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