Analysis of the three classifications of steel-non-ferrous metals

non-ferrous metals

Before introducing the classification of steel, we will briefly introduce the basic concepts of ferrous metals, steel and non-ferrous metals.

Ferrous metals are the industrial term for iron, chromium and manganese.

Also includes alloys of these three metals, particularly alloys ferrous steel and iron. The opposite of ferrous metals is non-ferrous metals. In fact, pure iron and chromium are silver-white, while manganese is silver-gray. Because the surface of steel is usually covered with a layer of black ferric oxide, manganese and chromium are mainly used to smelt black alloy steel. That’s why they’re “misclassified” as ferrous metals.
The classification of ferrous metals also has its significance, because these three metals are the main raw materials for smelting iron and steel, and steel plays an extremely important role in the national economy, and is also an important symbol to measure the national strength of a country. Ferrous metals account for about 95 percent of the world’s total metal production.

Rebar pig iron refers to iron ore into the blast furnace smelting products, mainly used to make steel and castings.

The cast pig iron is melted in the smelting furnace, that is, the cast iron (liquid), the liquid cast iron cast into casting, this cast iron is called cast iron.

Ferroalloy is composed of iron and silicon, manganese, chromium, titanium and other elements of the alloy, ferroalloy is one of the raw materials for steelmaking, steel deoxidizer and alloy element additives used in steelmaking.

the steelmaking pig iron into the smelting furnace according to a certain process, that is, to get steel.

The steelmaking pig iron into the smelting furnace according to a certain process, that is, to get steel. Steel products are ingot, continuous casting billets and direct casting of various steel castings. Usually speaking of steel, generally refers to rolled into a variety of steel steel. Steel is a ferrous metal but steel is not quite equal to ferrous metal.

The strength and hardness of non-ferrous metals are generally higher than that of pure metal,

the resistance is larger than that of pure metal, the resistance temperature coefficient is small, and it has good comprehensive mechanical properties. Commonly used nonferrous alloys are aluminum alloy, copper alloy, magnesium alloy, nickel alloy, tin alloy, tantalum alloy, titanium alloy, zinc alloy, molybdenum alloy, zirconium alloy and so on.
Due to the importance of minor metals in modern industry, they are sometimes separated from non-ferrous metals into a separate category. And with ferrous metal, non-ferrous metal juxtaposed, become three categories of metal.
Non-ferrous metals are the basic materials for the development of national economy. Most industries such as aviation, aerospace, automobile, machinery manufacturing, electric power, communications, construction and home appliances are based on non-ferrous metals. With the rapid development of modern 3、chemical industry, agriculture and science and technology, non-ferrous metals are playing an increasingly important role in human development. It is not only an important strategic material in the world, an important means of production, but also an indispensable consumption material in human life.

Shandong Baowu Steel Group.

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