ii) German silver (Nickel silver)

Element Composition Cu = 60% Zn = 15% Ni = 25%

Properties:

1.With increasing % of Ni, color is white (like silver)

2.Highly resistant to corrosion & sea water

3.It has good mechanical properties.

4.Tensile strength ranges from 25,000 to 60,000

Uses

1.It is used for making decorative articles, utensils, table wares, cutlery, ornaments, etc.

2.It is also used as coinage material.

3.Alloy with 18% Ni is used for making contact spring in telephone exchange.

4.It is used as base for electroplated article.