Nickel-aluminium wire of type "ÀLUNICK 7/1" consists of seven-core heart (the central core – aluminium, external six cores - nickel), closed in an aluminium cover. Diameter of the wire is 3.15 mm. The wire chemical compound: 22-28 % aluminium, the rest is nickel, that conforms in composition to a high-strength firm mortar of nickel-aluminium on the basis of intermetallic compound - Ni3Al.
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