ASTM B366 WPHC276 N10276 Seamless Alloy Steel Fitting Concentric Reducer B16.9

ASTM B366 WPHC276 N10276 Seamless Alloy Steel Fitting Concentric Reducer B16.9

ASTM B366 specification covers wrought welding fittings for pressure piping, factory-made from nickel and nickel alloys. Threaded fittings as covered in ASME B16.11 are also covered by this specification. The term welding applies to butt-welding or socket-welding parts such as 45 and 90° elbows, 180° bends, caps, tees, reducers, lap-joint stub ends, and other types, as covered by ASME B16.9, ASME B16.11, MSS SP-43, MSS SP-95, and MSS SP-97. N10276, also known as Hastelloy C276 or UNS N10276, it is a nickel chromium molybdenum solid solution strengthened superalloys.

ASTM B366 N10276 alloy steel fittings require strict production processes and quality testing, including high-precision CNC machining and rigorous non-destructive testing methods. Ensure that the dimensional accuracy, surface quality, and performance indicators of the fittings meet the standard requirements to meet the specific needs of customers.

• Main components: including nickel (about 57%), chromium (about 16%), molybdenum (about 16%), and added elements such as iron, tungsten, and cobalt.
• Corrosion resistance: It has strong resistance to almost all forms of corrosion, including reducing acids and oxidizing acids (such as sulfuric acid, hydrochloric acid, etc.), as well as seawater, chloride, wet chlorine gas, oxidizing salts, and hypochlorite salts.
• Antioxidant properties: Excellent antioxidant properties at high temperatures up to 1900 ° F (1038 ° C).
• Strength and toughness: Under annealing conditions, the yield strength is 41ksi (345MPa), and excellent toughness is maintained at low temperatures

ASTM B366 WPHC276 N10276 Alloy Steel Fitting Chemical Composition

ASTM B366 WPHC276 N10276 Alloy Steel Fitting Application

• Flue Gas Desulfurization Systems: Piping and fittings in absorption towers, spray systems, and flue ducts, resisting corrosion from sulfurous acid, sulfuric acid, and chlorides.

• Chemical and Petrochemical Processes: Reactors, heat exchangers, and piping systems involving highly corrosive media (such as hydrochloric acid, sulfuric acid, and chlorine).

• Pulp and Paper Industry: Equipment and piping in bleaching processes (using chlorine and chlorine dioxide).

• Pharmaceutical Industry: Certain process pipelines requiring extremely high purity and corrosion resistance.

• Waste and Wastewater Treatment: Especially for treating hazardous waste containing mixed chemicals.

• Acidic Natural Gas Extraction: Treating oil and gas environments containing hydrogen sulfide, carbon dioxide, and chlorides.