Schweisselektrode aus einer Nickelbasislegierung und diese Legierung

The electrode comprising a wire or a strip based on a nickel alloy includes the following (in weight %): Cr 20-24, Mo 8-12, W 0.1-5, Mo+W above 12, Fe less than 5, Cu less than 0.1, N less than 0.1, C less than 0.02, Si less than 0.1, Mn less than 0.4, Al 0.03-0.4, Mg 0.004-0.04, P less than 0.02, and S less than 0.02. Preferably, the electrode includes the following (in weight %): Cr 21-23, Mo 9-11, W 2-4 and Fe less than 2. The electrode can comprise a bare wire or can be in the form of a metal core coated with substances intended to form a slag which does not have any influence on the content of main elements of the deposited metal. Independent claims are given for: (a) welding of austenitic or super-duplex stainless steel sheets or steel containing 9% Ni for cryogenic applications by deposition of metal by fusion of a welding electrode having the above compositions; and (b) alloy compositions making up the welding electrode.