of nickel silver
Nickel silver (Cu-Ni-Zn) has a color similar to silver through the proper composition
of Zn and Ni. The difference in color comes from the ratio of composition of
Zn and Ni.
Nickel silver with higher contents of Cu would have yellow color and
beautiful green glossy if the contents of Zn increase.
It has good workability properties because it is combined with Pb, Mn, Sn
to improve the cutting.
Nickel silver has a high level of work-hardening through cold work, so it is
stronger than any other copper alloys. The Brinell hardness is between 85-190
HB and the tensile strength is between 340-610 N/§± this varies depending on the
composition of each component.
It has excellent fatigue resistance, too.
Nickel silver has no dezincification and is also insensitive to stress corrosion
The oxidation resistance in the atmosphere depends on the composition
of component and increases in proportion to the contents of Ni. It has oxidation
resistance up to 400¡É. It has good resistance to neutral salt that has corrosive,
and is far more superior to binary brass alloy.