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The difference between stainless steel and galvanized steel

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 　　Without protection, ordinary carbon steel is still prone to rusting in most environments. Therefore, there are many ways to modify steel to prevent corrosion. Two popular solutions are to use stainless steel or galvanized steel. Although both types of steel can resist rust and corrosion, there are important differences between them that should be understood. 　　What is stainless steel? 　　Stainless steel can resist corrosion because its chemical composition contains additional alloying elements. Although ordinary carbon steel is mainly composed of iron and carbon, stainless steel adds a large amount of chromium to help it resist corrosion. Chromium, sometimes with other alloying elements, is added to stainless steel during the initial melting process and then forms any specific shape. 　　What is galvanized steel? 　　Galvanized steel is a type of steel coated with a layer of zinc, which helps prevent rusting of the underlying steel. This layer is usually very thin, us...
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Stainless steel magnetic standard

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 　　The stainless steel grade plays a role in influencing factors, but generally speaking, stainless steel alloys have magnetism, and they must meet the following requirements: 　　The alloy must contain iron (Fe). 　　The crystal structure of stainless steel alloy must be arranged in martensite or ferrite structure. 　　Firstly, as stainless steel is a type of steel, its chemical composition must contain iron. This makes stainless steel magnetic. 　　The second requirement is that the crystal structure of stainless steel must be arranged into ferrite or martensite structure. If stainless steel is mainly composed of austenitic structure, it will not have magnetism. 　　As we have already mentioned, corrosion resistance is not related to magnetism. In stainless steel, corrosion resistance depends on the concentration of chromium (sometimes molybdenum). The more each, the better the corrosion resistance.
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How Aluminum is Made

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 　　In many ways, aluminum is the perfect metal. It is sturdy, lightweight, heat-resistant and corrosion-resistant, and is a good conductor of electricity. Most importantly, it is rich and cheap. 　　Aluminum is also the most abundant metal in the Earth's crust and the third most abundant element after oxygen and silicon. However, it was not until 1809 that the British chemist Sir Humphrey David officially identified and named it. 　　Today, aluminum is the most commonly used metal in the world, second only to steel. Aluminum is an important component of almost every aspect of our lives, from the vehicles we drive to the packaging of food. 　　When aluminum combines with other metals to form aluminum alloys, it is most versatile. The alloying process improves the performance of aluminum to adapt to various applications. 　　How Aluminum is Made 　　Aluminum is manufactured in the following stages: 　　Searching for aluminum ore 　　Mining aluminum 　　Refined bauxite 　　Aluminum s...
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