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Difference Between Hot Rolled (HR) & Cold Rolled (CR) Steel

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The key distinction between hot-rolled and cold-rolled steel lies in their processing methods. Hot-rolled steel is formed at high temperatures, whereas cold-rolled steel starts as hot-rolled steel but undergoes additional processing through cold reduction. This process involves cooling the material, followed by annealing and/or temper rolling. Both hot-rolled and cold-rolled steel are available in various grades and specifications. Knowing these differences can help you choose the most suitable type for your specific requirements.   While these processes impact the steel's performance and applications, they are not related to the formal specifications and grades of steel, which are determined by metallurgical composition and performance ratings. Both hot rolled and cold rolled steel can be made from various grades, including basic carbon steels and other alloy steels.   Hot Rolled Steel     Hot rolling is a process where steel is rolled at high temperatures, typicall...
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6 Common Uses of Cold Rolled Steel

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  Cold rolling is a metal fabrication process performed at room temperature, unlike methods that heat steel above its recrystallization point. Rolling and forming steel at normal temperatures requires greater pressure, but the benefits are significant. Because cold-rolled steel is processed well below its recrystallization temperature, it offers several advantages. Below, we explore the common applications of cold-rolled steel. Before that, let’s briefly examine what cold-rolled steel is, how it is formed, and its advantages over hot-rolled steel.   What Is Cold Rolled Steel?     Cold rolled steel  is steel processed without the application of heat. Instead, it undergoes a physically-intensive process as it cools naturally. Unlike hot rolling, which involves heating steel above its recrystallization temperature, cold rolling is performed below this temperature.     How Is Cold Rolled Steel Formed?     Cold rolling is carried out at room tempe...
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Hot Rolled Steel Products Types and Applications

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Hot rolled steel  is steel that has been rolled at high temperatures above 1700°F, which is above the recrystallization temperature of most steels. This makes steel easier to mold, and also results in an easier product to process.   Processing hot-rolled steel, manufacturers firstly start with a large, rectangular piece of metal which called a billet. The billets are heated and then sent to preprocessing where they are flattened into large rolls. From there, it is kept at high temperatures and passed through a series of rollers to reach its final size. White-hot steel wire is pushed through the drum at high speed. For sheet metal, rolled steel is rolled into coils and cooled.The material is segmented and packaged for other shapes, such as rods or sheets.   Steel shrinks ​ slightly when cooled. After processing,hot rolled steel is cooled, so there is less control over its final form, making it less suitable for precision applications. Hot...
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Steel Coil, Plate & Tube Manufacturer

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Tianjin Muchang Materials Imp.&Exp Corp   is a professional steel products supplier   established in 2009. We offer a wide range of steel products in the globe market. Our Mission is to provide high quality products and solutions to our customers, and to create a better future with our customers. TIANJIN MUCHANG   adheres to the business philosophy of professionalism, integrity, innovation, and outstanding service. We earn a good reputation among our clients through consistent performance in quality products, professional expertise, competitive prices, prompt delivery, as well as a series of value-added services, such as quality control, laboratory testing, and after-sales service.  
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