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Zhengzhou, Henan Province, China
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Hot rolled steel coil provides excellent properties, like high strength, high toughness, and good weldability. It is widely used in construction, machinery, boiler, pressure vessel, and other manufacturing industries. It is also material for cold-rolled products and galvanized steel products. As a hot-rolled coil manufacturer and supplier, Wanzhi Steel offers quality hot-rolled coil at a competitive price. Welcome to contact us for more details!
|Item||Hot Rolled Steel Coil|
|Thickness||1.0- 4.0 mm|
|Width||600 – 2500 mm ( common width: 915 mm, 1220 mm, 1500 mm)|
|Coil Inner Diameter||508-760 mm|
|Steel Grade||Q195, Q235, Q235B, Q345, Q345A, Q345E, SS400|
|Packaging||Export standard packing|
Hot-rolled coils are suitable for applications that don’t require a perfect surface and accurate dimensions. But they have some excellent properties, such as high strength, high toughness, good weldability. So hot rolled products are widely used in construction, car structures, machinery, boiler, pressure vessel, steel pipes, and other manufacturing industries, including:
Construction: architectural structures, frameworks, bridges, fences, partitions, railroad tracks, I-beams, etc.
Pipelines for transportation of oil, gas, water, heat supply networks, and sewerage lines;
Machinery, bodies and components machinery, cars and trucks, tanks, cranes, etc.
1. Price: hot rolled coil is cheaper than cold rolled coils;
2. Increased ductility and toughness;
3. Good flexibility. It is easy to work with for different uses. For example, it can be formed into different shapes, such as curved, arched, large sheets, etc.
4. But its surface has a scaly finish, which forms at high temperatures.
Hot rolled steel is roll-pressed at very high temperatures, which is above the re-crystallization temperature of steel. Below let’s review its manufacturing process.
1. Feeding the steel slab into the reheating furnace;
2. Using hydraulic descaler to remove scale on the surface;
3. Feeding into the roughing mill and cutting the ends;
4. Going through the finishing mill to adjust the thickness and width of a coil and to produce a smooth surface;
5. Cool down and roll up into coils.
Rolling is an important metalworking process that improves the strength of steel. The main metal rolling procedure is to give the steel the required thickness and shape. Wanzhi Steel has both hot rolling and cold rolling production lines. Below are some differences for your reference.
Hot-rolled steel is a mill process that involves rolling the steel at a very high temperature, over 1,700˚F. This temperature is higher than the recrystallization temperature of most steels. While cold-rolled steel is further processed at room temperature.
Hot rolled steel coil has a scaled surface, which is formed at hot temperature. In contrast, cold-rolled coils have closer tolerances and a smoother surface. So cold rolled steel is better for applications that require precise sizes or aesthetic appearance.
Due to the increased carbon content, cold rolled steel coil is harder and stronger than the HR coil. It has better resistance to tension breaking and deformation.
Due to its simpler processing method, the cost of the hot-rolled coil is lower than cold rolled steel. The reason is that cold rolled steel making requires additional processing and more time.
Wanzhi Steel is one of the top hot rolled coil manufacturers in China. We have a factory in Shandong Province, which is near Qingdao Port. Besides HR coils, we also have cold rolled coils for sale, as well as galvanized steel coils, color-coated steel coils, etc. Besides, the hot rolled steel coil price is lower than the cold rolled coil. That’s why it is popular among many applications, especially steel-based projects. Wanzhi Steel has decades of experience in exporting. We have helped customers from France, Turkey, the Philippines, Brazil, Argentina, etc. With rich experience, we will help you choose suitable materials for your projects. If you want more details, please contact us right now!
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