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有色金属中最常见的有以下几种铝铝在未被空气氧化时呈银白色,受氧化后呈灰色。铝的比重为2.7,密度为2.7克/厘米~3。纯铝的熔点为1220°F(660℃)。铝合金的比重从2.55至2.77。
Non-ferrous metals are the most common of the following aluminum aluminum in the absence of air oxidation was silver-white, grayed by oxidation. The specific gravity of aluminum is 2.7, the density is 2.7 g / cm ~ 3. Pure aluminum has a melting point of 1220 ° F (660 ° C). The proportion of aluminum alloy from 2.55 to 2.77.