黑色金属与有色金属

The quality of every material c***tructed depends on its foundation. As today’s 技术 advances, we often see new things being built such as towering buildings and long bridges. In the past, these structures were built with fragile wood. But since humans are quite discontented, they explore and devise new and sturdier materials like metals. Though metals are chemical elements found in nature, humans keep on enhancing their forms to maximize their use. Metals can be subdivided into two groups which are called ferrous metals and non-ferrous metals.

We all know that metals are malleable yet sturdy. These lustrous metals are very good conductors of heat and electricity which make them very 本质的 in today’s living. But what exactly are the differences between ferrous and non-ferrous metals?

Ferrous metals contain iron. The word “ferrous” has its roots from the Latin word “ferrum” which means “anything that contains iron.” Specific examples of ferrous metals are: wrought iron, stainless steel, and carbon steel. Since ferrous metals contain iron, they are magnetic. This property is the major difference between ferrous metals and non-ferrous metals. Ferrous metals are preferred in building sturdy, strong iron fences and walls, gates, and other materials made with ferrous metal alloys.

If ferrous metals have magnetic properties, non-ferrous metals are known for their lighter weight yet higher strength. Specific examples of non-ferrous metals are: brass, aluminum, and copper. Since non-ferrous metals are also non-magnetic in nature, they have higher resistance to corrosion with increased melting points. They are more preferred in electronic applicati***. If you would take a closer look at most electrical wiring, it is made mostly of copper, which is a non-ferrous metal.

We have said earlier that ferrous metals are magnetic, but it depends on the amount of iron these metals contain. The best example of this is stainless steel. This type of ferrous metal is not magnetic in nature because it undergoes a different process. In order to make it non-magnetic, it is soaked in nitric acid to get rid of its iron content, thus only the nickel remains. Even if the iron of the stainless steel is purposely removed, it is still classified as a ferrous metal.

If non-ferrous metals are very resistant to corrosion, ferrous metals are not. This corrosion takes the form of rust, the reddish and brownish substance on the surfaces of ferrous metals. This happens because of the presence of moisture in the air causing the ferrous metals to rust.

Summary:

1. 金属有两大类：黑色金属和有色金属。金属通常是坚固的、可延展的和可延展的。

2. “铁”一词来自拉丁语“铁”，意思是“任何含有铁的东西”

3. 黑色金属是一种含铁的金属，而有色金属则不含铁。

4. 黑色金属具有以下特性：磁性和抗腐蚀性较差。

5. 有色金属具有以下特性：本质上无磁性，随着熔点的增加，抗腐蚀性更强。

6. 黑色金属的磁性有一些例外。不锈钢不是磁性的，因为它的铁是特意去除的，使之成为“不锈钢”

7. 黑色金属的具体例子有：熟铁、不锈钢和碳钢。有色金属的具体例子有：黄铜、铝和铜。

8. 黑色金属优先用于建造坚固、坚固的铁栅栏和墙壁、大门以及其他由黑色金属合金制成的材料。有色金属主要用于电气和电子应用。