Construction
HR Coil
HR (Hot Rolled) coils represent a pinnacle of modern metallurgy, offering unparalleled strength, flexibility, and adaptability for diverse industrial applications. Crafted through a rigorous hot rolling process, these coils boast exceptional durability and structural integrity, making them indispensable in the realms of construction, automotive, and manufacturing. Their uniform thickness and impeccable surface finish ensure seamless integration into production lines, facilitating efficiency and precision at every stage.
Manufacturing Process
- Heating: Steel billets or blooms are heated in a furnace to a temperature above its recrystallization point, typically around 1,700°F to 2,300°F (925°C to 1,260°C). This high temperature makes the steel more malleable and easier to work with.
- Rolling: The heated steel is then passed through a series of rollers. As the steel moves through the rollers, it is reduced in thickness and elongated into a flat, thin sheet or coil. The rolling process involves both roughing and finishing mills. The roughing mill breaks down the steel into a more manageable shape, while the finishing mill fine-tunes the thickness and surface quality.
- Coiling: After the steel has been rolled to the desired thickness, it is cooled and coiled into large rolls. These coils are then typically cooled to room temperature and can be processed further or shipped as is.
- Pickling and Coating (Optional): In some cases, HR coils may undergo additional treatments such as pickling (to remove surface scale) or coating (to enhance corrosion resistance). This step is particularly common for HR coils used in automotive or high-end applications.
Applications
Heavy Equipment
Automotive
Manufacturing
FEATURES
- Steel coils and strips are produced with a highly adaptable manufacturing process, which are extensively used for making pipes and have many direct industrial and manufacturing applications
- it is possible to produce HR Coil with a variety of different grades and qualities to achieve the requirements.
- HR coils are produced in various thicknesses and widths, making them suitable for a wide range of applications. They can be used as-is or further processed into other products like sheets, plates, or structural components.
- The hot rolling process is efficient and cost-effective, particularly for producing large volumes of steel. The resulting product generally has a lower cost compared to cold-rolled steel due to the simplified manufacturing process.
- HR coils generally exhibit good strength and durability. However, the hot rolling process can lead to a less precise thickness and surface finish compared to cold rolling.
SIZES
| Usage/Application | Hollow Sections manufacturers, Agriculture, Automobile, Construction, Oil & Gas |
|---|---|
| Color | Steel Gray |
| Material | Mild Steel |
| Available Form | HR Strip |
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