40-67% Nickel, 24-34% Copper, the balance is comprised of Iron, Manganese, Carbon, Silicon and traces of Aluminium and Titanium.
Nickel-Copper Alloys are commonly available in
Sheets and Plates
Welded & Seamless Tubes and Pipes
(Not all alloys or tempers available in all shapes)
High corrosion and weathering resistance in many demanding environments including sulfuric, hydrofluoric and seawater.
Excellent subzero mechanical properties
Ductile- easy to draw
Machinery and piping used for oil and chemical processing.
Pollution control equipment
Nickel-Copper Alloys are generally weldable via GTAW welding, but SMAW is preferred for R-405 as it is less affected by the Sulphur content.
Nickel-Copper Alloys are a little difficult to machine as they work harden very quickly. Alloy R-405 was specifically developed with the addition of Sulfur to make it more readily machinable.
Commonly Used Alloys
400 | 401 | 404 | R-405 | K-500
Common Trade Names