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How are the steel profiles that are used in construction and manufacturing made? The coil of steel is moved from the warehouse into the slitting station. Here they take the coil of steel sheet and cut it into sections, with the width corresponding directly to the dimensions of the end product. This now correctly sized material is then moved to the start of the actual manufacturing station. They start to roll this material into the steel profile shape. Whether that’s square, rectangular or into other shapes such as angles or tubes. In this case, the actual rolling element of…

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ERW steel pipes are manufactured by low-frequency or high-frequency resistance “resistance”. They are round pipes welded from steel plates with longitudinal welds. It is used to transport oil, natural gas and other vapor-liquid objects, and can meet various requirements of high and low pressure. At present, it occupies a pivotal position in the field of transportation pipes in the world. During ERW pipe welding, heat is generated when current flows through the contact surface of the welding area. It heats the two edges of the steel to the point where one edge can form a bond. At the same…

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Carbon steel and stainless steel are both metals that are used in a wide array of commercial and consumer applications. The main difference between the two is in the components that are added to the steel to make it useful for its intended purposes. Steel is an alloy made out of iron and carbon. The carbon percentage can vary depending on the grade, and mostly it is between 0.2% and 2.1% by weight. Though carbon is the main alloying material for iron some other elements like Tungsten, chromium, manganese can also be used for the purpose. Different types and…

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   The full form of PPGI is pre-painted galvanized iron. It is a kind of color coated steel or pre-painted steel, which is an extension of GI. As the name implies, it uses zinc-coated steel as substrate, and then it is cleaned, pre-treated, and applied with layers of coatings to make it more beautiful and durable to use. As the picture shows, PPGI steel contains base metal, zinc coating, pre-treatment (chemical conversion coating), primer coating, and top/back coating. PPGI uses galvanized steel as base metal, which includes hot-dip galvanized and electro galvanized steel. The former is more corrosion-resistant and durable…

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