Hastelloy C22

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.
The metal should not be worked in temperatures going above 1250° F; doing so may cause deformations. Additionally, C-22 hardens quickly under cold-working practices and may require annealing. Processes that are used to work Hastelloy C-276 are often successful as well. Welding, forging, deep-drawing, press forming and impact extruding are all applicable on C-22.

Paper & Pulp Industry

Specifications – Hastelloy C22

Standard Hastelloy C22
UNS N06022
Werkstoff Nr. 2.4602
EN NiCr21Mo14W
AFNOR NU-30M

Physical Properties – Hastelloy C22

Density 8.61 g/cm 3 / 0.311 lb/in 3
Melting Point 1300 -1350 (°C) / 2464 – 2529 (°F)
Specific Heat @ 70°F 0.091 Btu/lb/°F
Elastic Modulus @ 70ºF 29.9 x 106 psi
Thermal Conductivity @ 118°F 70 Btu·in/ft2·h·°F
Permeability (15.9 kA/m) ≤1.001 (200 oersted)
Electrical Resistivity 730.7 ohm•circ mil/ft.
Annealed 1121 (°C) / 2050 (°F)
Quench Rapid Air/Water

Chemical Composition – Hastelloy C22

Element Hastelloy C22
Ni Bal* (50.015 min)
Mo 12.5 – 14.5
Cr 20.0 – 22.5
Fe 2.0 – 6.0
W 2.5 – 3.5
C 0.015 max
Si 0.08
Co 2.5 max
Mn 0.50 max
V 0.35 max
P 0.02
S 0.02

*Calculated . For Reference only.

Heat Exchangers

Hastelloy C22 Products

Pipes & Tubes
Tubing
Seamless Pipe
Round Bar
Square Bar
Hex Bar
Sheet
Coil
Plate
Elbow / Bends
Fitting-Flanges-Reducer
Fitting-Flanges-Stubend
Fitting-Flanges-cap
Flanges-sorf-wnrf
Fitting-Flanges-fasteners
Wire-filler
Wire-coil
Wire-spool
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