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Slide 17 of 69
Notes:
In brasses, the red of copper is toned to a range of attractive yellow hues by the addition of varying amounts of zinc, ranging from the gold-like colours of the 95/5, 90/10, 85/15 and 80/20 alloys (appropriately called "gilding metals") through the more subtle variations in the 70/30, 2/1 and 64/36 series of brasses to the stronger yellow colour of the 60/40 alloy, formerly known as "yellow metal".
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