NICKEL COPPER ALLOYS

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NICKEL COPPER ALLOYS

Nickel Copper Alloys (NiCu) and their welding consumables have a Ni content of 50-70 % and are known as Silverin alloys.

Application example:

  • (NiCu45) Silverin 404  is used for electronic components due to its low magnetic permeability.
  • (NiCu30Fe) Silverin 400 has excellent resistance to liquid acids and seawater corrosion. Typical applications are plant and apparatus construction, as well as Ship Building.
  • (NiCu30Al) Silverin 500  can be age-hardened due to the increased Aluminum and Titanium content.  The final hardness of the material prior to precipitation treatment is between 24-44 HRC. A prime application is the manufacturer of doctor blades used in the paper industry. This alloy is also used to produce springs for the Ship Building Industry.
  • IGS-Silverin 418 is the welding grade used to produce Strip Electrodes. This is used for overlay cladding of parts in the petrochemical and marine industries.

ALLOY
AMW-TRADE NAMEALLOYSTANDARDMATERIAL-NO. DIN / UNS
Silverin 400NiCu30FeDIN 17743 / ASTM B 1272.4360 / N 04400
Silverin 500NiCu30AlDIN 177432.4375 / N 05500
Silverin 404NiCu45
AVERAGE CHEMICAL COMPOSITION (mass %)
AMW-TRADE NAME Ni (+Co) Al C Cu Fe Mn Si Ti
Silverin 400 min 63 28 1.0
max 0.5 0.15 34 2.5 2.0 0.5 0.3
Silverin 500 min 63 2.2 27 0.5 0.3
max 3.5 0.2 34 2.0 1.5 0.5 1.0
Silverin 404 min 54.5
max 55.5 0.1 0.1 bal. 0.3 0.1 0.1
PHYSICAL PROPERTIES
AMW-TRADE NAME DENSITY THERMAL EXPANSION COEFFICIENT 20 – 100 ˚C CURIE-TEMPERATURE THERMAL CONDUCTIVITY AT 20 ˚C
g/cm3 10 -6/K ˚C W/m˚K
Silverin 400 8.8 14 50 26
Silverin 500 8.5 13.7 135* 100** 19
Silverin 404 8.9 13 21

* solution heat treated / ** precipitation hardened

WIRES OR ROUND WIRES
DIA (MM) LENGTH & PACKING STOCK POSITION
0.10 Onwards Spools & Coils Ready Stock

 

BLOCKS OR SLABS

From Ready Stock, we offer Cut-To-Size pieces as per your dimensions and requirements.

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