Platinum has been alloyed with various other metals and elements for using it in production of various kinds of devices and materials. The alloys of platinum are prepared by taking the elements and platinum in various proportions. The goldsmith’s work involves creating the alloys so that they can be used in various applications. Some of the famous alloys of platinum are listed below.
Platinum Silver – It is created by taking the 2 parts silver and 1 of platinum. It results in an alloy that has a white appearance, low melting point and one which can be polished.
Hard Platinum – It is created by mixing 7 parts platinum with 3 parts iridium. It increases the hardness of platinum as comparable to that of steel.
For measuring instruments – This alloy is created by mixing 9 parts platinum and 1 part iridium. It is used in the manufacturing of measuring instruments that offer great resistance.
In watches – The alloy of platinum with elements like copper, nickel, cadmium, and tungsten are used in the construction of watches and the latter achieve significant hardness rusting like steel.
Platinum-copper alloys – They are also called as Cooper gold and consist of 3 parts platinum and 13 parts copper. It is very ductile and equal to 18-carat gold in terms of colour, finish, and ductility. If 4 per cent of platinum is taken, the alloys acquire a rose-red colour and a golden-yellow colour is produced by adding 1 to 2 per cent of platinum. The golden yellow colour is also obtained by making the alloy from ten parts platinum, 60 parts nickel, and 220 parts brass,
For enamelled articles: This alloy is manufactured by taking 35 parts platinum and 65 parts silver. The silver is fused first and then platinum is added in the spongy form. An excellent solder for this includes 80 parts platinum and 20 parts copper.
Pens: The alloy is also used in the manufacturing of 4 parts platinum, 3 parts silver and 1 part copper.
