hastelloy pipe

Alloy C 276 (UNS N10276/ 2.4819) is known for its corrosion resistance in a variety of corrosive media. The high molybdenum content imparts resistance to localized corrosion such as pitting. Low carbon minimizes carbide precipitation during welding to maintain the resistance of the welded joint heat affected zone to intergranular erosion. It is used in chemical processing, pollution control, pulp and paper, industrial and municipal waste treatment, and recovery of “sour” natural gas. Applications in air pollution control include stack liners, ducts, dampers, scrubbers, stack gas reheaters, fans and fan guards. In chemical processing, the alloy is used to make components such as heat exchangers, reaction vessels, evaporators and transfer piping.

ASTM B619 UNS N10276 Alloy C276 Tube covers 2 classes under this specification. In class 1, the Hastelloy C276 Tube is furnished in an as welded and solution annealed condition or these tubes could be welded along with being sized and solution annealed.

On the other hand, the class 2 Hastelloy C276 Welded Tubing produced according to the ASTM B619 specification is welded, cold worked and is furnished in a solution annealed condition.

Alloy B2 Tubes, which has poor corrosion resistance to oxidizing environments. Hastelloy B2 Seamless Tubes is a solid solution strengthened, nickel ¨C molybdenum alloy, with significant resistance to reducing environments like hydrogen chloride gas, and sulphuric, acetic and phosphoric acids. Molybdenum in Hastelloy B2 Welded Tubes is the primary alloying element which provides significant corrosion resistance to reducing environments.

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.

Hastelloy B2 pipes are available in custom sizes and thicknesses according to customer requirements. They are readily available in national and international standards at very effective prices. It is a strengthened nickel alloy used under extreme reducing conditions. They are made of high-quality raw materials. It comes in various grades and forms.