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Types and properties of metallic materials in Dongguan


The basic types
Dongguan metal materials are generally divided into ferrous metals, non-ferrous and special metal materials.
① black metal known as iron and steel materials, including more than 90 percent of the iron pure iron, carbon content of 2% to 4% iron, less than 2% of the carbon steel, and various uses of structural steel, stainless steel, heat-resistant steel, high temperature alloy, precision alloy. Generalized ferrous metals also include chromium, manganese and alloys thereof.
② refers to all non-ferrous metals and their alloys other than iron, chromium, manganese, usually divided into light metal, heavy metal, precious metals, semi-metals, rare metals and rare earth metals. Strength and hardness of non-ferrous alloys generally higher than that of pure metals, and resistance, resistance temperature coefficient.
③ special Dongguan metal material including structural materials and functional Dongguan Dongguan metal metallic materials for different purposes. There amorphous metal material obtained by rapid cooling process, as well as quasicrystals, microcrystalline, nanocrystalline metal and other materials; and stealth, anti-hydrogen, superconductivity, shape memory, wear, vibration damping alloys and other special features and metal matrix composites.
Basic performance
Generally divided into process performance and performance categories. The so-called process performance refers to the mechanical parts in the manufacturing process, the Dongguan metal material at a predetermined cold, thermal processing conditions demonstrated performance. Metal material process performance is good or bad, determines its ability to adapt to working in the manufacturing process forming. Due to the different processing conditions, process performance requirements is different, such as casting properties, weldability, malleable, heat performance, cutting and so on. The so-called performance refers to mechanical parts under conditions of use, Dongguan metal material manifested performance, which includes mechanical properties, physical properties, chemical properties. Metallic material performance good or bad, determines its range and life. In the machinery manufacturing industry, general mechanical parts are in constant temperature, pressure and very strong aggressive media, and in the course of the various mechanical parts will withstand the effect of different loads. Dongguan Metal Materials RESISTANCE damage under load, called the mechanical properties (in the past also called mechanical properties). Dongguan mechanical properties of metallic materials are mainly based on parts of the design and material selection when. Applied load different nature (such as tensile, compression, torsion, impact, cyclic loading, etc.), on the mechanical properties of metallic materials in Dongguan requirements will be different. Common mechanical properties include: strength, ductility, hardness, toughness, impact resistance and fatigue limit many times and so on.
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