Nickel Alloy

--Superior Corrosion Resistance, High-Temperature Performance

Hastelloy C276/C22 Welded Pipe offers unmatched resistance to pitting, crevice, and intergranular corrosion, making it ideal for harsh environments in the chemical, petrochemical, and offshore industries. With high levels of nickel, molybdenum, and chromium, these pipes maintain strength and stability at elevated temperatures.

Hastelloy C276 and C22 are two nickel-based alloys with excellent corrosion resistance and high temperature performance, widely used in harsh corrosive environments.Hastelloy C276/C22 Welded Pipe has excellent resistance to pitting, crevice and intergranular corrosion and is the ideal choice for dealing with harsh working environments, particularly in the chemical, petrochemical and offshore industries. Hastelloy C276/C22 Welded Pipe has excellent resistance to pitting and crevice corrosion.

Beneficial properties

Hastelloy C276 Welded Pipe consists of high levels of nickel, molybdenum and chromium with a small amount of tungsten to enhance its corrosion resistance in oxidising and reducing environments.Hastelloy C22 has improved oxidation resistance and a wider range of corrosion resistance because the chromium content of Hastelloy C22 has been added to that of C276. Hastelloy C276/C22 welded tube performs well in a wide range of corrosive environments with excellent corrosion resistance while maintaining mechanical strength and chemical stability at elevated temperatures with high temperature stability.

Manufacturing Process

Welding Process: The welding process of Hastelloy C276 Welded Tube is mainly automated and manual welding.

Quality Control Measures: Non-destructive testing (NDT) and weld inspection.

Heat Treatment Process: Remove weld stress and restore mechanical properties and corrosion resistance. Includes solution annealing and annealing.

Surface Treatment: Used to improve performance and appearance. Includes pickling and polishing treatment (mechanical polishing or electrolytic polishing).

Applications

Oil & Gas: Used in the manufacture of drilling equipment such as drill pipes and drilling rigs; pipeline transport of highly corrosive media such as sour gas and sour crude oil.

Offshore: used in offshore platform equipment such as jack-ups, desulphurisation equipment and breakwater plates; salt- and corrosion-resistant subsea pipelines.

Chemical and petrochemical industry: used for heat exchanger tube bundles; manufacture of chemical reactors, storage tanks and piping systems.

Energy industry: for flue gas desulphurisation (FGD) systems and power generation equipment.

Pharmaceutical and food processing: for food processing equipment with high hygienic requirements; for pharmaceutical equipment such as pharmaceutical reactors, mixers and transfer piping.

Aerospace: for the manufacture of exhaust systems and high temperature engine components

Water treatment: applications for waste water treatment and desalination plants.