Operating environment: Windows NT version 6.0
1, non-ferrous metal network has channels and exhibitions of copper, aluminum, lead, zinc, rare earth, nickel and tin, providing market contents of varieties, professional statistical data and platform services for supply and demand. Non-ferrous metals, also known as non-ferrous metals in a narrow sense, are the general names of all metals except iron, manganese and chromium. Nonferrous metals in a broad sense also include nonferrous alloys. Non-ferrous alloys are based on non-ferrous metals (usually more than 50%) and add one or several other elements. Nonferrous metals usually refer to all metals except iron (sometimes including manganese and chromium) and iron-based alloys. Nonferrous metals can be divided into heavy metals (such as copper, lead and zinc), light metals (such as aluminum and magnesium), precious metals (such as gold, silver and platinum) and rare metals (such as tungsten, molybdenum and germanium), lithium, lanthanum and uranium).
2. Nonferrous metals refer to all metals except iron, chromium and manganese. China listed iron, chromium and manganese as ferrous metals in 1958. Metals other than iron, chromium and manganese are classified as non-ferrous metals. These 64 kinds of nonferrous metals include: aluminum, magnesium, potassium, sodium, calcium, strontium, barium, copper, lead, zinc, tin, cobalt, nickel, antimony, mercury, cadmium, bismuth, gold, silver, platinum, ruthenium, rhodium, palladium, osmium, iridium, beryllium, lithium and osmium.
3. Non-ferrous alloys generally have higher strength and hardness, higher resistance and lower temperature coefficient of resistance than pure metals, and have good comprehensive mechanical properties. Common non-ferrous 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. Because rare metals are of great significance in modern industry, a separate category is sometimes separated from non-ferrous metals. Together with ferrous metals and nonferrous metals, it constitutes three kinds of metals. Nonferrous metals are the basic materials for the development of national economy. Most industries such as aviation, aerospace, automobile, machinery manufacturing, electric power, communication, construction, household appliances, etc. are based on non-ferrous metals. With the rapid development of modern 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 and an important means of production in the world, but also an indispensable means of consumption in human life.