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HR COILS
Hot rolled coils provides superior surface finish, It has better physical properties of steel, such as high formability, good strength, excellent dent resistance, good magnetic properties, tensile strength, workability and welding properties.
CR COILS
In Cold Rolling, the thickness reduces to precise requirements. CR Sheets are also available in sheets and coils.
APPLICATIONS
CR coils/sheets are used for precision tubes making, containers, bicycles, furniture, household appliances, electrical panels, galvanizing, colour coating, thinning, general engineering and construction.
SPECIFICATIONS FOR HR AND CR COILS
WIDTH RANGES
Available standard are 1000mm, 1250mm, 1270mm and 1600mm
Customized ranges from 21mm to 1600mm
LENGTH RANGES
Available Standard are 2000mm, 2500mm, 5000mm and 6000mm
Customized ranges from 400mm to 6000 mm
Country Of Origin : India
Hot Rolled (HR) coils and Cold Rolled (CR) coils are integral components in a multitude of industries, providing essential materials with specific characteristics that cater to various applications. This comprehensive product description covers the intricate details, properties, applications, specifications, and variants catered by HR and CR coils.
Hot Rolled coils stand out due to their superior surface finish and excellent physical properties. The process of creating HR coils involves heating steel above its recrystallization temperature and then rolling it to achieve the desired thickness. This procedure grants several advantageous properties to HR coils:
High Formability: The high temperature in the rolling process ensures that the material can be easily shaped into a variety of forms, making it suitable for several practical applications.
Good Strength: The carefully controlled manufacturing process provides HR coils with robust strength characteristics, effectively meeting various industrial requirements.
Excellent Dent Resistance: With a texture that withstands deformation, HR coils are ideal for products demanding high durability.
Good Magnetic Properties: Due to the specific metallurgical attributes achieved during the hot rolling process, HR coils offer significant magnetic properties, making them useful in electromagnet applications.
Tensile Strength and Workability: These coils possess substantial tensile strength, allowing them to perform well under tensile stress. Alongside, their workability ensures they can be used in varied mechanical processes without substantial degradation.
Welding Properties: They are particularly reactive to welding, thus suitable for many manufacturing processes where welding is essential.
Cold Rolled coils involve a secondary rolling process involving further reduction of thickness below room temperature, adding to the strength and finish of the material. CR coils take the benefits provided by HR coils a step further, with tighter tolerances and increased precision:
Precision in Thickness: The cold rolling process ensures the steel's thickness is reduced precisely according to the requirements, enhancing its suitability for specific uses.
Enhanced Surface Finish: CR coils have finer surface finishes suitable for more aesthetically demanding applications, along with improved mechanical properties.
Greater Strength: The cold rolling method also heightens the material's strength and hardness through work hardening.
Higher Dimensional Accuracy: Offering higher accuracy in dimensions, these sheets maintain their shape and size better than hot rolled coils during various operations.
Variability in Formats: CR Sheets are available in both sheets and coils, offering flexibility depending on the needs of different projects.
The diverse physical properties of HR and CR coils lend them to an array of applications, making them indispensable in several industries. Here are some prominent uses:
Precision Tubes Manufacturing: CR coils are crucial in the production of precision tubes due to their precise thickness and superior surface finish.
Containers: Both HR and CR coils are commonly used in making different types of containers due to their strength and formability.
Bicycles: The manufacturing of bicycles demands materials with good strength and workability, which is efficiently provided by both HR and CR coils.
Furniture: CR coils, due to their superior surface finish, are used in crafting designer and functional furniture, ensuring aesthetic appeal and durability.
Household Appliances: The durability and workability of HR and CR coils make them perfect for manufacturing various household appliances that require robust and reliable materials.
Electrical Panels: The excellent magnetic properties found in HR coils make them ideal for use in the production of electrical panels.
Galvanizing and Colour Coating: Both HR and CR coils are used in galvanizing and color coating processes, providing a protective coating to the steel and extending its lifespan.
Thinning: CR coils are subjected to the process of thinning, improving their suitability for applications that require reduced material thickness without compromising strength.
General Engineering and Construction: The robust physical properties and flexibility make these coils the material of choice in various engineering and construction projects.
The versatility of HR and CR coils extends beyond their physical properties, as they are available in a wide range of customizable dimensions to cater to specific project requirements.
Width Ranges:
Length Ranges:
The versatile dimensions of these coils allow their integration into varied applications, making them adaptable to numerous project specifications.
The extensive functionalities and benefits provided by HR and CR coils make them essential materials in various industrial sectors. Whether in the
