Alloy C-276 Pipe & Fittings

La tubería de aleación C-276 Inconel®

Hastelloy® Alloy C-276 (UNS N10276)

Alloy C-276 is known for its outstanding corrosion resistance in a wide range of severe media. The high nickel and molybdenum contents provide good corrosion resistance in reducing environments while chromium imparts resistance to oxidizing media.

The molybdenum also aids resistance to localized corrosion such as pitting. The low carbon content minimizes carbide precipitation during welding to maintain resistance to corrosion (intergranular attack) in heat-affected zones of welded joints.

Alloy C-276 is widely used in the severest environments encountered in chemical processing, pollution control, pulp and paper production, industrial and municipal waste treatment, and recovery of “sour” natural gas.

Applications in air pollution include stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans, and fan housings. In chemical processing, The alloy is used for numerous components including heat exchangers, reaction vessels, evaporators, and transfer piping.

In sour gas wells (those containing hydrogen sulfide), Alloy 20 delivers a high level of performance in various downhole and surface components including tubing, coupling, and subsurface safety valves.

Hastelloy® Alloy C-276 is resistant to general corrosion, stress corrosion cracking, pitting, and crevice corrosion in a broad range of severe environments. Its resistance to carbide precipitation during welding maintains corrosion resistance in the heat-affected zones of welded joints. It has exceptional resistance to sulfuric acid and hydrochloric acid.

It resists many of the most severe media encountered in chemical processing, including reducing and oxidizing acids, highly oxidizing, neutral, and acid chlorides, solvents, formic and acetic acids, and acetic anhydride, wet chlorine gas, hypochlorites, and chlorine solutions. It has excellent resistance to phosphoric acid.

At all temperatures below the boiling point and at concentrations lower than 65 wt %, tests have shown corrosion rates of less than 5 mpy (0.13 mm/y). Alloy C-276 exhibits excellent resistance to corrosion by seawater, especially under crevice conditions which induce attack in other commonly used materials such as 316 stainless steel, alloy 400, and alloy 625.

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High Nickel Alloy and Specialty Stainless Piping Material Service Center

Alloy 200/201 Pipe & Fittings

Nickel 200 (UNS  NO2200) is commercially pure (99.6%) wrought nickel. It has excellent mechanical properties and is highly resistant in myriad corrosive environments. Both Nickel 200 and 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel 200 can be used to reduce the development of passive oxide films in highly oxidative media.

High Nickel Alloy and Specialty Stainless Piping Material Service Center

Alloy 400 Pipe & Fittings

Monel® Alloy 400 (UNS N04400) is a solid solution Alloy that may be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments. Alloy 400 is virtually immune to chloride-ion stress corrosion cracking in typical environments.

High Nickel Alloy and Specialty Stainless Piping Material Service Center

Alloy 825 Pipe & fittings

Incoloy® Alloy 825 (UNS N08825) is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. The alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. The nickel content of Alloy 825 is sufficient for resistance to chloride-ion stress corrosion cracking.

Incoloy Alloy 020 Nickel-Iron-Chromium Pipe

Ways To Use Alloy 20 Nickel Piping

Incoloy® Alloy 20 (UNS N08020) is an austenitic nickel-iron-chromium Alloy with additions of copper and molybdenum. The nickel content makes Alloy 20 resistant to chloride-ion stress-corrosion cracking. Copper and molybdenum give resistance to reducing environments. The molybdenum content also provides good resistance to pitting and crevice corrosion.

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