Hastelloy ® C-22 is a austenitic nickel based super alloy, a versatile material with impressive resistance to corrosion. C-22 is very ductile and good for welding. It is resistant to pitting and crevice/crack corrosion, and can withstand sea water, chlorine, and acidic chlorine environments. C-22 is machined using high speed tooling and can be heat worked using either hot or cold working.

A few products and industries that utilize C-22 include:

  • Chemical processing
  • Pulp and paper
  • Oil and gas
  • Chlorine systems

Vincent Metals handles Hastelloy ® C-22 in rod, plate, and foil.

Chemical Data, Mechanical Properties and Specifications for Nickel Alloy C-22

Chemical

Chemical Range
Element Minimum Maximum
Carbon (C) -- 0.015
Chromium (Cr) 20 22.5
Cobalt (Co) 2.5 --
Iron (Fe) -- 2.0
Manganese (Mn) -- 1.0
Molybdenum (Mo) 26.0 30.0
Nickel (Ni) Balance --
Phosphorus (P) -- 0.04
Silicon (Si) -- 0.1
Sulphur (S) -- 0.03

Physical

Typical Physical Data
Density 0.33 lb /in 
Melting Point   2600 ºF 
Specific Heat 0.093 (Btu/lb · ºF)
Coefficient of Expansion 5.7 (70-200 ºF , 10-6  in/in · ºF)
Thermal Conductivity 85 (Btu · in/ft2 · h · ºF)
Electrical Resistivity 825 (ohm·circ mil/ft)

Specs

Applicable Specifications
Rod & Bar ASTM B574
Sheet & Plate ASTM B575
Tube & Pipe ASTM B622, ASTM B619, ASTM B626
Forgings ASTM B564

Hastelloy is a registered trademark of Haynes International