1. Ferrous metals refer to iron and iron alloys. Such as steel, pig iron, ferroalloy, cast iron, etc. Both steel and pig iron are alloys based on iron and with carbon as the main added element, collectively referred to as iron-carbon alloys.
Pig iron refers to a product made by smelting iron ore in a blast furnace, which is mainly used for steelmaking and casting.
The cast iron is smelted in an iron melting furnace, that is, cast iron (liquid) is obtained, and the liquid cast iron is cast into a casting, which is called a cast iron.
Ferroalloy is an alloy composed of iron and silicon, manganese, chromium, titanium and other elements. Ferroalloy is one of the raw materials for steelmaking. It is used as a deoxidizer and alloying element additive for steel during steelmaking.
2. Put the pig iron for steelmaking into the steelmaking furnace and smelt it according to a certain process to obtain steel. Steel products include ingots, continuous casting billets and direct casting into various steel castings. Generally speaking, steel generally refers to steel that is rolled into various types of steel. Steel is a ferrous metal but steel is not exactly equal to ferrous metal.
3. Non-ferrous metals, also known as non-ferrous metals, refer to metals and alloys other than ferrous metals, such as copper, tin, lead, zinc, aluminum, as well as brass, bronze, aluminum alloys and bearing alloys. In addition, chromium, nickel, manganese, molybdenum, cobalt, vanadium, tungsten, titanium, etc. are also used in industry. These metals are mainly used as alloy additions to improve the properties of metals. Among them, tungsten, titanium, molybdenum, etc. are mostly used to produce knives. Carbide used.
The above non-ferrous metals are all called industrial metals, in addition to precious metals: platinum, gold, silver, etc. and rare metals, including radioactive uranium, radium, etc.
Post time: Jul-28-2022