nickel alloy

Hastelloy X Alloy is a nickel-chromium-iron-molybdenum superalloy with outstanding high temperature strength, oxidation resistance, and fabricability. The oxidation resistance of Alloy X is excellent up to 2200¡ã F.

Hastelloy C-22 can be used in conjunction with Hastelloy C-276 to prevent joint corrosion. Its composition is nickel-chromium-molybdenum-tungsten, giving it some of the resistance that is characteristic of C-276. The metal is excellent against overall and localized corrosion, along with chemical, oxidation, and reducing environments. Tests in environments containing wet chlorine and nitric acid have also proved that Hastelloy C-22 shows exceptional resistance. However, one unique characteristic is its weldability, which allows the metal to be used as a filler in many cases where other metals have failed to stop corrosion. These characteristics make Hastelloy C-22 commonly applied in chemical productions for food and beverages and pharmaceutical tools.

This nickel steel alloy has also been found to be exceptionally resistant to stress corrosion cracking in petrochemical applications. Matrix stiffening provided by the molybdenum content results in high strength in a solid-solution alloy having good fabrication characteristics. Although this nickel alloy is primarily noted for heat and oxidation resistance it also has good resistance to chloride stress-corrosion cracking, carburization, and excellent resistance to reducing or carburizing atmospheres. Two common conditions that often lead to early failure in high temperature alloys, carburization and nitriding, Hastelloy X resists.

Alloy 718 was initially developed for the aerospace industry but its excellent strength and corrosion resistance were recognised by the oil industry and it is now widely used in this field as well.

Alloy 718 is a nickel-chromium alloy which can be heat-treated to give high strength, good corrosion resistance, ease of formability and which can be welded with good resistance to strain age cracking. The alloy can be used at temperatures up to 700oC.

Alloy 718 for the oil industry is heat treated such that the hardness does not exceed 40HRC which is the maximum allowed by NACE MR-01-75/ ISO 15156: 3 to prevent stress corrosion cracking. The major applications in this field are Valves and precision tubing.

Alloy 718 for aerospace and power generation is heat treated to give maximum strength and high creep resistance with typical hardness values exceeding 42HRC. The major applications are components for gas turbines, aircraft engines, fasteners and other high strength applications.

Our Inconel 625 Piggable Bend is very tough at extremely high temperatures and resists corrosion caused by caustic alkalis in the chemical industry. We manufacture UNS N06600 Inconel 600 Long Radius Elbow is niobium stabilized for the aerospace industry, while Inconel WNR 2.4851 Welded Elbow has high yield strength and can be hot and cold worked.