The non-ferrous metals in the broad sense also include non-ferrous alloys. A non-ferrous alloy is an alloy composed of a non-ferrous metal (usually greater than 50%) and one or more other elements added. Species characteristics: use: Smart Faucet,Smart Faucet Price,Smart Faucet Product Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zelinsinkfaucet.com
Definition: Non-ferrous metal in a narrow sense, also called non-ferrous metal, is a general term for all metals except iron, manganese, and chromium.
Non-ferrous metal division
Non-ferrous metals are all metals except the three metals: iron, chromium, and manganese. In 1958, China listed iron, chromium, and manganese as ferrous metals, and 64 metals other than iron, chromium, and manganese were included in non-ferrous metals. These 64 non-ferrous metals include: aluminum, magnesium, potassium, sodium, calcium, strontium, barium, copper, lead, zinc, tin, cobalt, nickel, antimony, mercury, cadmium, germanium, gold, silver, platinum, rhodium, ruthenium. Palladium, ruthenium, rhodium, iridium, lithium, osmium, iridium, titanium, zirconium, hafnium, vanadium, tantalum, niobium, tungsten, molybdenum, tantalum, indium, scandium, yttrium, lanthanum, cerium, ytterbium , é“•, é’†, 铽, é•, é’¬, é“’, é“¥, 镱, é•¥, é’ª, é’‡, silicon, boron, selenium, tellurium, arsenic, tellurium.
Non-ferrous metal species
Historically, the materials used in production tools have been continuously improved. It has a close relationship with the development of human society. Therefore, historians used the material of artifacts to mark historical periods, such as the Stone Age, the Bronze Age, and the Iron Age. By the end of the 17th century, 8 kinds of non-ferrous metals were clearly recognized and applied by humans. The Chinese nation has made significant contributions to the discovery and production of these non-ferrous metals (see Metallurgical History). After entering the 18th century, the rapid development of science and technology has promoted the discovery of many new non-ferrous metal elements. In addition to the eight types of non-ferrous metals mentioned above that were recognized and applied before the 17th century, 13 were found in the 18th century. In the 19th century, 39 species were discovered. In the 20th century, 4 species were discovered.
Non-ferrous alloys generally have higher strength and hardness than pure metals, have larger resistance than pure metals, and have a small temperature coefficient of resistance and have good overall mechanical properties. Commonly used non-ferrous alloys include aluminum alloys, copper alloys, magnesium alloys, nickel alloys, tin alloys, tantalum alloys, titanium alloys, zinc alloys, molybdenum alloys, zirconium alloys, and the like.
A: Copper in non-ferrous metals is one of the earliest metal materials used by humans. Modern, non-ferrous metals and their alloys have become indispensable structural materials and functional materials in the fields of machinery manufacturing, construction, electronics, aerospace, and nuclear energy utilization.
B: In practical applications, non-ferrous metals are usually divided into 5 categories:
1. Light metal. The density is less than 4500kg/m3, such as aluminum, magnesium, potassium, sodium, calcium, strontium, barium and so on.
2. Heavy metal. Density greater than 4500 kg/m3, such as copper, nickel, cobalt, lead, zinc, tin, antimony, bismuth, cadmium, mercury, etc.
3. Precious metals. The price is more expensive than the commonly used metals, and the abundance of the crust is low. It is difficult to purify such metals as gold, silver and platinum metals.
4. Semi-metal. The nature of the price between the metal and non-metal, such as silicon, selenium, tellurium, arsenic, boron and so on.
5. Rare metal. Including rare light metals such as lithium, tantalum, and yttrium;
Rare refractory metals such as titanium, zirconium, molybdenum, tungsten, etc.;
Rarely dispersed metals such as antimony, indium, bismuth, antimony, etc.;
Rare earth metals such as lanthanum, cerium, and lanthanide metals;
Radioactive metals such as uranium, thorium, etc.
Non-ferrous metals generally refer to all metals except iron (sometimes manganese and chromium are also removed) and iron-based alloys. Non-ferrous metals can be divided into four categories:
1. Heavy metals: General density above 4.5g/cm3, such as copper, lead, zinc, etc.;
2. Light metal: small density (0.53 ~ 4.5g/cm3), lively chemical properties, such as aluminum, magnesium and so on.
3. Precious metals: low content in the earth's crust, difficult extraction, high prices, high density, stable chemical properties such as gold, silver, platinum, etc.;
4. Rare metals: such as tungsten, molybdenum, tantalum, lithium, thorium, uranium, etc.
Non-ferrous metal properties and uses
Non-ferrous metals English name: [Metallurgy]nonferrousmetals