In the manufacturing industry, metal workpieces are processed by machine tools to achieve ideal size workpieces. These processed metal parts can be used in many scenarios, such as aerospace, automobile, generator and mechanical equipment. However, according to different application scenarios, there are many types of metals. This article will mainly introduce the types of metal parts.
Metal is a newly prepared, polished or broken material with a shiny appearance and relatively good electrical and thermal conductivity. Metals are usually ductile or malleable. Metals can be chemical elements such as iron; Alloy, such as stainless steel; Or molecular compounds, such as polymerized sulfur nitride.
In physics, metals are generally considered to be any substance that can conduct electricity at absolute zero temperature. Many elements and compounds that are not usually metals are changed into metals under high pressure. For example, non-metallic iodine gradually becomes metal under the pressure of 40 to 170000 times atmospheric pressure. Similarly, some materials considered as metals can be changed into nonmetals. For example, sodium becomes nonmetallic at almost 2 million times the atmospheric pressure.
What are the types of metal parts
Metals can be divided into two categories: ferrous metals and non-ferrous metals. There are many types of metals, including steel, carbon steel, alloy steel, stainless steel, iron (forged or cast), aluminum, magnesium, copper, brass, bronze, zinc, titanium, tungsten, nickel and cobalt. The characteristics of each metal are described in detail below.
Iron (forged or cast): Iron accounts for about 5% of the earth’s crust, is the sixth most common element in the universe, and is a very rich and popular metal. Pure iron is an unstable element, which can easily react with oxygen in the air to form iron oxide. To make it more stable, it is usually alloyed with other elements to make steel. As a heavy metal, iron provides rigidity and reduces vibration, which is why it is often used to make heavy machinery frames and bases.
Steel: Pure iron is stronger than other types of metal, but there are still some shortcomings. On the one hand, pure iron is not resistant to corrosion. It takes a lot of money and effort to prevent iron corrosion. On the other hand, because of its high density, it is very heavy. These shortcomings make the structure difficult to build and maintain. At the same time, adding carbon to iron alleviates these weaknesses to some extent. This mixture of iron and carbon, to a certain extent, is called carbon steel. Adding carbon to iron makes it stronger and gives it other outstanding properties.
Carbon steel: This is basic steel, high-quality carbon and iron, although some other very small amounts of other elements can be added. The three major categories are low carbon steel, medium carbon steel and high carbon steel. More carbon means harder and stronger. Less carbon means cheaper, softer and easier to manufacture. Carbon steel is often used as simple mechanical parts and various tools.
Alloy steel: Think of it as genetically modified steel. Alloy steel is made by adding other elements to the mixture. This changes the properties and makes the metal essentially customizable. This is a very common metal because it is usually still very cheap to make.
The common alloying elements of steel include manganese, vanadium, chromium, nickel and tungsten. Each of these elements changes the properties of metals in a different way.
For example, alloy steel can increase the strength of high-performance gears, increase the corrosion resistance and wear resistance of medical implants, and increase the pressure that the pipeline can withstand. It is widely considered to be the main force of the metal world.
Stainless steel: technically, it is an alloy steel, but the number is so large that it usually has its own category. This is specifically for corrosion-resistant steels.
What are the types of metal parts
Copper: When talking about different types of metals, copper and its alloys cannot be ignored. It has a long history because it is easy to form. Even today, it is an important metal in manufacturing. Metals are good conductors, and copper is more prominent than other metals. Because of its excellent conductivity, it is used as a conductor in circuits. Its conductivity is second only to silver. It also has excellent thermal conductivity. This is
why many conductors are made of copper.
This article mainly introduces the types of metal parts. You can learn from the article that metal is generally considered to be any substance that can conduct electricity at absolute zero temperature. Many elements and compounds that are not usually metals are changed into metals under high pressure. For example, non-metallic iodine gradually becomes metal under the pressure of 40 to 170000 times atmospheric pressure. Similarly, some materials considered as metals can be changed into nonmetals.
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