2012 Annual Report on Magnesium Metal Market
2013-03-05 08:59:51 【Print】
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1．Property, Distribution and Application of Magnesium
1.1 Property
Magnesium is a ductile, silver-white, chemically active metal. It is one of the most abundant minerals in the earth. Its density is only two thirds of aluminum’s, two fifth of titanium’s and one fourth of steel’s. Magnesium alloy weighs 36% less than aluminum alloy, 73% less than zinc alloy and 77% less than steel. With a density of only 1.738 grams per cubic centimeter, it is the lightest structural metal known. It lacks ductility when worked at lower temperatures. In addition, in its pure form, it lacks sufficient strength for most structural applications. However, the addition of alloying elements improves these properties to such an extent that both cast and wrought magnesium alloys are widely used, particularly where light weight and high strength are important.
1.1 Property
Magnesium is a ductile, silver-white, chemically active metal. It is one of the most abundant minerals in the earth. Its density is only two thirds of aluminum’s, two fifth of titanium’s and one fourth of steel’s. Magnesium alloy weighs 36% less than aluminum alloy, 73% less than zinc alloy and 77% less than steel. With a density of only 1.738 grams per cubic centimeter, it is the lightest structural metal known. It lacks ductility when worked at lower temperatures. In addition, in its pure form, it lacks sufficient strength for most structural applications. However, the addition of alloying elements improves these properties to such an extent that both cast and wrought magnesium alloys are widely used, particularly where light weight and high strength are important.
