The metal element analyzer distinguishes the classification of metal materials: a general name for a metal element or a material having metal characteristics mainly composed of a metal element. Including pure metals, alloys, intermetallic compounds and special metal materials. (Note: Metal oxides (such as alumina) do not belong to metal materials) Type: Metal materials are generally classified as ferrous metals, non-ferrous metals, and special metal materials.
1 Ferrous metals, also known as iron and steel materials, include industrial pure iron containing over 90% iron, cast iron containing 2% to 4% carbon, carbon steel containing less than 2% carbon, and structural steels, stainless steel, and heat-resistant for various purposes. Steel, high-temperature alloys, precision alloys, etc. The broad ferrous metals also include chromium, manganese and their alloys.
2 Non-ferrous metals are all metals and their alloys except iron, chromium, and manganese. They are generally classified into light metals, heavy metals, precious metals, semi-metals, rare metals, and rare earth metals. Non-ferrous alloys generally have higher strength and hardness than pure metals, and have a large electrical resistance and a small temperature coefficient of resistance.
3 Special metal materials include structural metal materials and functional metal materials of different uses. Among them are amorphous metal materials obtained through rapid condensation process, as well as quasi-crystal, microcrystalline, nanocrystalline metal materials, etc.; and special function alloys such as stealth, hydrogen resistance, superconductivity, shape memory, wear resistance, damping and damping, etc. , And metal matrix composites. Performance: generally divided into two types of process performance and performance. The so-called process performance refers to the performance of the metal parts in the process of manufacturing, the performance of the metal materials under the specified cold and hot processing conditions. The quality of the metal material process determines the adaptability of the metal forming process during the manufacturing process.
Due to the different processing conditions, the required process properties are also different, such as casting properties, weldability, malleability, heat treatment properties, and machinability. The so-called use of performance refers to the performance of mechanical parts under the conditions of use, the performance of metal materials, including mechanical properties, physical properties, chemical properties. The quality of the use of metal materials determines its scope of use and service life.
In mechanical manufacturing, general mechanical parts are used in normal temperature, normal pressure and very strong corrosive media, and each mechanical part will be subjected to different loads during use. The resistance of metal materials to failure under load is called mechanical properties (also called mechanical properties in the past). The mechanical properties of metal materials are the main basis for the design and selection of parts. Different applied load properties (such as tension, compression, torsion, impact, cyclic load, etc.) will require different mechanical properties for metal materials. Commonly used mechanical properties include: strength, plasticity, hardness, impact toughness, multiple impact resistance and fatigue limit.
1 Ferrous metals, also known as iron and steel materials, include industrial pure iron containing over 90% iron, cast iron containing 2% to 4% carbon, carbon steel containing less than 2% carbon, and structural steels, stainless steel, and heat-resistant for various purposes. Steel, high-temperature alloys, precision alloys, etc. The broad ferrous metals also include chromium, manganese and their alloys.
2 Non-ferrous metals are all metals and their alloys except iron, chromium, and manganese. They are generally classified into light metals, heavy metals, precious metals, semi-metals, rare metals, and rare earth metals. Non-ferrous alloys generally have higher strength and hardness than pure metals, and have a large electrical resistance and a small temperature coefficient of resistance.
3 Special metal materials include structural metal materials and functional metal materials of different uses. Among them are amorphous metal materials obtained through rapid condensation process, as well as quasi-crystal, microcrystalline, nanocrystalline metal materials, etc.; and special function alloys such as stealth, hydrogen resistance, superconductivity, shape memory, wear resistance, damping and damping, etc. , And metal matrix composites. Performance: generally divided into two types of process performance and performance. The so-called process performance refers to the performance of the metal parts in the process of manufacturing, the performance of the metal materials under the specified cold and hot processing conditions. The quality of the metal material process determines the adaptability of the metal forming process during the manufacturing process.
Due to the different processing conditions, the required process properties are also different, such as casting properties, weldability, malleability, heat treatment properties, and machinability. The so-called use of performance refers to the performance of mechanical parts under the conditions of use, the performance of metal materials, including mechanical properties, physical properties, chemical properties. The quality of the use of metal materials determines its scope of use and service life.
In mechanical manufacturing, general mechanical parts are used in normal temperature, normal pressure and very strong corrosive media, and each mechanical part will be subjected to different loads during use. The resistance of metal materials to failure under load is called mechanical properties (also called mechanical properties in the past). The mechanical properties of metal materials are the main basis for the design and selection of parts. Different applied load properties (such as tension, compression, torsion, impact, cyclic load, etc.) will require different mechanical properties for metal materials. Commonly used mechanical properties include: strength, plasticity, hardness, impact toughness, multiple impact resistance and fatigue limit.