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    What is the difference between pure titanium screws and titanium alloy screws

    2020-10-29 11:46:00

    When customizing screws, the screw manufacturer needs to determine what kind of screw fasteners the user needs to produce. There are many materials that can produce screws. Take titanium screws as an example. Titanium screws are divided into pure titanium and titanium alloy. Although it seems that there are only two options, there are questions about these two screw materials. Let us follow the editor to see what is the difference between pure titanium screws and titanium alloy screws:


    Titanium screw, pure titanium is a chemical element, chemical symbol Ti, atomic number 22, appearance like steel, with silver white luster, is a transition metal, pure titanium screw has high strength, low density, high hardness, and high melting point. Strong corrosion resistance; due to its stable chemical properties, good high temperature resistance, low temperature resistance, strong acid resistance, strong alkali resistance, and high strength, low density, it is called "space metal" and high purity titanium screws are also good Plasticity.


    Titanium alloy screws have a lot of knowledge here. Titanium alloys refer to alloys composed of other elements based on titanium. Among them, titanium alloys include titanium aluminum alloys, titanium copper alloys, titanium manganese alloys, etc. metal. The density of titanium alloy is generally about 4.51g/cm3, which is only 60% of steel. Some high-strength titanium alloys exceed the strength of many alloy structural steels. Therefore, the specific strength (strength/density) of titanium alloy is much greater than other metal structural materials, and parts with high unit strength, good rigidity and light weight can be produced. The aircraft's engine components, skeleton, skin, fasteners and landing gear all use titanium alloys.


    So when we customize titanium screws, how do we choose the material of the screws? In fact, titanium alloys are produced to meet the different needs of the industry. Because all the screws in the world are used in different environments, the positions used on machine parts are also different, and the hardness, flexibility, thermal conductivity, and wear resistance of the screws required by the machine are also different. Therefore, when our screw manufacturers customize the production of screw fasteners for customers, they will always ask the user where the screw is used and what kind of performance it needs to have. If the hardness is required, then it is recommended to use titanium-cobalt alloy. Titanium-cobalt alloy is generally used For making cutting tools. When selecting the screw material, it must be understood that when the hardness of the screw is high, the screw is easy to break. If you need custom-made screw fasteners with abrasion resistance and good hardness, then titanium copper alloy is recommended. Because copper is one of the wear-resistant metals, but if you want titanium screws to have more hardness and flexibility while taking into account wear resistance, you must add titanium metal, because titanium metal has hardness, oxidation resistance, corrosion resistance, and cold resistance. There are many advantages such as slow heat conduction, and of course the price is not cheap. If you must take into account slow heat and cold conduction, light weight, good flexibility, strong drawing resistance, oxidation resistance, and corrosion resistance, titanium is undoubtedly the first choice. If it is a general screw fastener, It is enough to choose cheap copper, iron, stainless steel and other materials. If screw fasteners must have the characteristics of a certain alloy under special circumstances, then you must choose a certain characteristic of titanium alloy metal. There is too much knowledge in this area.


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