The following HCl and low-concentration sulfuric acid are also quite resistant. Nickel alloy 625 / Inconel 625 / UNS N06625 has a very low corrosion rate in both marine and non-marine environments, has good seawater corrosion resistance, is resistant to corrosion by various salt solutions, has good corrosion resistance to HNO3 phosphoric acid, and is resistant to heating to the boiling point. Good resistance to acids, such as nitric, phosphoric, sulfuric and hydrochloric, as well as to alkalis makes possible the construction of thin structural parts of high heat transfer. Outstanding resistance to pitting, crevice corrosion and intercrystalline corrosion Įxcellent mechanical properties at both extremely low and extremely high temperatures Īlmost complete freedom from chloride induced stress corrosion cracking Resistant to stress corrosion in a salt spray atmosphere Good processing and welding properties are good Įxcellent corrosion resistance and oxidation resistance
High resistance to oxidation at elevated temperatures up to 1050C. High tensile strength and high corrosion fatigue properties Inconel 625 material could be clad or lined on high strength carbon steel pipe like API 5L X60, X65, X70, it includes outer mother pipe carbon steel to provide strength, and inner material cladded or lined Inconel 625, to provide high corrosion resistance in various environments including marine, airspace, chemical plants and petrochemical industries.Ĭladding or lining inconel alloy 625 material inside of the carbon steel pipe has been a popular option to solve the corrosive problems and save a lot of cost. Inconel 625 Clad Pipe Lined Pipe / Nickel Alloy 625 Weld Overlay Because of the solid solution of the refractory Co and Mo in a Nickel-Chromium matrix, provides 625 an outstanding strength and toughness in high temperature ranging from low up to 2000☏ (1093☌). Inconel 625 is extremely resistant to a variety of unusually severe corrosive environments, including high temperature effects such as oxidation and carburization, including corrosion. The addition of molybdenum acts with the niobium to stiffen the alloy matrix, providing a high strength without a strengthening heat treatment. The high strength of Inconel 625 is due to the hardened combination of molybdenum and niobium on the nickel-chromium matrix of the alloy. Inconel alloy 625 is a non-magnetic, corrosion and oxidation resistant, nickel-chromium based solid solution strengthened deformed superalloy.Ī Solid solution strengthened nickel-based deformed superalloy with molybdenum and niobium as the main strengthening elements. Inconel Alloy 625 / Inconel 625 / UNS N06625 Features It has excellent corrosion resistance to inorganic acids, and has excellent corrosion resistance to various corrosive media in oxidative and reducing environments. Other chemical content Chromimum 20% to 23%, Columbium + tantalum 3.15% to 4.15%, Molybdenum 8.0% to 10.0%, columbium Cobalt allow 1.0% max if determined, Iron 5.0% max.ĭensity of 8.4 g/cm3, melting point of 1290-1350 ☌. Nickel alloy 625 is nickel-chromium-molybdenum-columbium alloy material, major content Nickel minimum 58%, also called Inconel 625 or UNS NO6625 under standard ASTM B444 for pipes, or ASTM B443 for plates coils.
API 5CT L80 Casing and Tubing Pipe Specification.API 5CT Grade N80 Type Q Casing Steel Pipes.ASTM A234 WP11 Pipe Fittings Specification.Inconel 625 / Nickel Alloy 625 / UNS N06625 Pipe and Tube.Incoloy 825 / Nickel Alloy 825 / UNS N08825 Pipe and Tube.ASTM A335 P91 Pipe Specification (Chrome Moly Pipe).
ASTM A335 P9 Pipe Specification (Chrome Moly Pipe).ASTM A335 P22 Pipe Specification (Chrome Moly Pipe).ASTM A335 P11 Pipe Specification (Chrome Moly Seamless Pipe).ASTM A672 Grade B60, C65 Pipe Specification.ASTM A179/ ASME SA179 Heat Exchanger Tubes.
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