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Hastelloy® Alloy C22

Hastelloy® Alloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content in Hastelloy® Alloy C22 provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media.

Specifications

Standard Hastelloy® Alloy C22
1 UNS N06022
2 Werkstoff Nr. 2.4617

Chemical Composition

Hastelloy® Alloy C22
Ni Bal
C 0.010 max
Cr 20 – 22.5
Co 2.5 max
Fe 2 – 6
Mn 0.50 max
Mo 12.5 – 14.5
P 0.02 max
Si 0.08 max
S 0.02 max
W 2.5 – 3.5
V 0.35 max

Mechanical & Physical Properties

Density 8.69 g/cm3
Melting Point 1399 °C (2550 °F)
Tensile Strength Psi – 1,00,000 , MPa – 690
Yield Strength (0.2%Offset) Psi – 45000 , MPa – 310
Elongation 45 %

Hastelloy® is a registered trademark of the Haynes International.