Tuesday, July 28, 2015

Muntz Metal: What It Is and What It Does

Patented in 1832 by Englishman George F. Muntz, Muntz metal, also called yellow metal, was developed as a way to make copper more cost-efficiently. Though it was just as strong as copper, its manufacture was only 2/3 the cost of pure copper at the time of Muntz's invention. The metal is prized for its strength, ability to resist corrosion, and honey color. Here are some basic facts about this interesting alloy.


Muntz metal is primarily made of copper, but zinc is added to prevent corrosion and make the metal stronger. The finished product is 60 percent copper, 40 percent zinc, and contains trace amounts of iron. It is made by adding different metals to the mixture at different times. First, the copper is melted, and then the zinc is infused. The molten metal is mixed and then poured into ingot molds before being shaped into sheets or formed into its final shape. It is then bathed in a mixture of water and sulfuric acid to be made ready for use.


When first introduced to the market, Muntz metal was used frequently in the hulls of ships and to wrap the bases of piers because of its corrosion resistance. Today, Muntz metal is a manufacturing staple due to its corrosion resistance and superior strength. Needless to say, Muntz metal is utilized to make corrosion-resistant parts, bolts, signs, condenser plates, and architectural details or accents.

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