General Description

Hastelloy C22 is a variant of Hastelloy C276 and has better resistance to chloride-induced localized corrosion and SCC than Hastelloy C4 and Inconel 625. In this alloy, the chromium content was raised to approximately 21% and molybdenum content reduced to approximately 13%. It also contains approximately 0.2% V and 1.7% Co.

Hastelloy C22 has outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking. It has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chloride ions. Hastelloy C22 produced by NiWire also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. Because of this versatility, it can be used where upset conditions are likely to occur or in multipurpose plants.

Hastelloy C22 can be used for many applications such as marine, power, chemical processing, pollution control, paper processing, and waste disposal industries.

Chemical Composition

Grade Ni% Cr% Mo% Fe% C% Mn% Si% Co% W% V% S% P%
Hastelloy C22 Bal. 20.0-22.5 12.5-14.5 2.0-6.0 Max 0.015 Max 0.5 Max 0.08 Max 2.5 2.5-3.5 Max 0.35 Max 0.02 Max 0.02

Specifications

Grade UNS Werkstoff Nr.
Hastelloy C22 N06022 2.4602

Physical Properties

Grade Density Melting Point
Hastelloy C22 8.9 g/cm3 1325°C-1370°C

Mechanical Properties

Hastelloy C22 Tensile Strength Yield Strength RP0.2% Elongation
Solution Treatment 690 MPa 283 MPa 40%

Our Production Standard

  Bar Forging Parts Welded Tube Seamless Tube Sheet/Plate Wire
ASTM ASTM B574 ASTM B564 ASTM B619 ASTM B622 ASTM B575  

Size Range

Hastelloy C22 wire, bar, rod, forging, plate, sheet, tube and other standard forms are available.
 

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