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Hastelloy˘ C-22
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Hastelloy˘ C-22

Available in any of the 'profile options'

A Nickel-Chromium-Molybdenum alloy with better overall resistance and versatility than any other NiCrMo available. It has excellent resistance to localised corrosion and to a variety of mixed industrial chemicals.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
Cr 20.00 22.50
Mo 12.50 14.50
Fe 2.00 6.00
W 2.50 3.50
C 0.015
Si 0.08
Co 2.50
Mn 0.50
V 0.35
P 0.02
S 0.02
Ni Bal
ASTM B574
ASTM B575
ASTM B619
ISO 15156-3 (NACE MR 0175)
W.Nr 2.4602
UNS N06022
AWS 053
Better overall corrosion resistance than Hastelloy C-4 & C-276 and Inconel 625
Outstanding resistance to pitting, crevice corrosion and stress corrosion cracking
Chlorination systems
Nuclear fuel reprocessing
Pickling systems
Density 8.69 g/cm³ 0.314 lb/in³
Melting Point 1399°C 2550°F
Coefficient of Expansion 12.4 μm/m °C (20 – 100°C) 6.9 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 78.6 kN/mm² 11400 ksi
Modulus of Elasticity 205.5 kN/mm² 29806 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 400 – 450 750 – 840 2 Air
Properties
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 800 – 1100 116 – 159 -200 to +400 -330 to +750
Spring Temper 1400 – 1700 203 – 247 -200 to +400 -330 to +750

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Haynes International

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