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It’s important to note that the main difference between hot rolled and cold rolled steel is one of process. “Hot rolling” refers to processing done with heat. “Cold rolling” refers to processes done at or near room temperature. Although these techniques affect overall performance and application, they should not be confused with formal specifications and grades of steel, which relate to metallurgical composition and performance ratings. Steels of different grades and specifications can be either hot rolled or cold rolled—including both basic carbon steels and other alloy steels. It may seem obvious, but some types of steel are better suited for certain applications. Knowing which to use can help avoid over-spending on raw materials. It can also save time and money on additional processing. Understanding the differences between hot and cold steel is integral to choosing one over the other.
Hot rolled steel typically requires much less processing than cold rolled steel, which makes it a lot cheaper. Because hot rolled steel is allowed to cool at room temperature, it’s essentially normalized—meaning it’s free from internal stresses that can arise from quenching or work-hardening processes.
Hot rolled steel is ideal where dimensional tolerances aren’t as important as overall material strength, and where surface finish isn’t a key concern. Where surface finish is a concern, scaling can be removed by grinding, sand blasting, or acid-bath pickling. Once scaling has been removed, various brush or mirror finishes can also be applied. Descaled steel also offers a better surface for painting and other surface coatings.
Standard | GB ASTM JIS AISI EN |
Steel Grade | Q195/Q235/Q345/A36/A572/A283/S235JR/S355JR |
Place of Origin | Shandong China |
Technique | Hot Rolled Cold Rolled |
Application | Construction |
Width | 30mm - 2500mm or customized |
Length | in coil |
Thickness | 0.3-18mm |
Tolerance | ±1% |
Processing Service | Bending, Welding, Decoiling, Cutting, Punching |
Color | NATURAL |
MOQ | 10 Ton |
Delivery Time | 7-15 Days |
Package | Standard Sea Worthy Package |
We are happy to answer any questions you have regarding our product lines and services. Please tell us a little more about yourself and we will have someone contact you as soon as possible.
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Behind the growth and success of Kuaima Steel is years of hard work and dedication in the steel industry and meeting customers' needs on time. Advanced technology, standard products, certified quality standards and the bestcustomer service make Kuiama Steel a true leader in the global market.
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Liaocheng Economic and Technological Development Zone, Shandong Province, China
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