Austenitic nickel alloy

Details Austenitic nickel alloy Austenitic nickel alloy

C - Chemistry, Metallurgy

22

C

C22C 19/05 (2006.01)

Patent

CA 2087995

- 14 - ABSTRACT The invention relates to an austenitic nickel-chromium-molybdenum alloy having high resistance to general corrosion, crevice, pitting and stress crack corrosion and also intercrystalline corrosion, consisting of (in % by weight): carbon: up to 0.01% silicon: up to 0.05% manganese: up to 0.50% phosphorus: up to 0.020% sulphur: up to 0.010% chromium: 14.0 to 18.0% molybdenum: 14.0 to 18.0% cobalt: up to 2.0% tungsten. up to 0.5% calcium 0.001 to 0.010% magnesium: 0.001 to 0.020% aluminium: 0.05 to 0.30% nitrogen: up to 0.02% iron up to 3.0% copper up to 0.5% titanium up to 0.01% residue nickel and usual impurities due to melting, the sum of the contents (carbon + silicon + titanium) being limited to 0.05% at the most, and the sum of the elements (calcium + magnesium + aluminium) being adjusted within the limits 0.055 to 0.33%. - 15 - This Ni alloy is more particularly suitable as a material for the production of flow rollers for electrolytic strip galvanization plants and for the production of absorber components for the purification and desulphurization of flue gases.

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