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4 Nisan 2015 Cumartesi

WHAT IS THE BRASS ?

BRASS: General name for alloys of copper with zinc or tin, with the proportions about 70–90% copper and 10–30% of the other base metal. It is possible that due to difficulties in introducing the zinc ore calamine into the melt, brass appeared later in use than bronze (copper and tin) and other copper alloys. Mosaic gold, pinchbeck, and prince’s metal are varieties of brass differing in the proportions of the ingredients. Corinthian brass is an alloy of gold, silver, and copper.

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