Steel coil refers to a long, continuous strip of steel that has been wound onto a large spool. It is a common form in which steel is processed and transported in the manufacturing and construction industries. The steel used in coils is typically a carbon steel or an alloy steel, chosen for its strength, durability, and versatility.

The process of creating steel coils involves hot rolling or cold rolling steel sheets to achieve the desired thickness and dimensions. Hot rolling involves passing heated steel through rollers to shape it, while cold rolling is done at room temperature to improve the surface finish and achieve tighter tolerances.

Due to their continuous and flexible nature, steel coils offer significant advantages in terms of efficiency and ease of handling during production and transportation. They can be unwound and cut into specific sizes and shapes as needed, making them an essential material in various industrial processes.

Dmsons Metal Pvt. Ltd. is a leading supplier and stockist of high quality Coils such as Hot Rolled Coils and Cold Rolled Coils in Andheri Mumbai, India. Being among the prominent Steel Coil manufacturers in India, our company has played a vital role in the growth and development of the Indian market. We specialize in producing Steel Coils in various sizes, shapes, and specifications tailored to meet the unique needs of our valued clients. Steel Coils manufacturers ensure that the products are highly resistant to corrosion and cost-effective. Dmsons is a reputed stainless steel coil manufacturers in India, renowned for dependability and top-notch quality in the Indian market.

1. Hot Rolled Coils: –

Here are some standards and grades of Hot Rolled Coils:

• IS2062 Hot Rolled Coils: These coils conform to the Indian Standard IS2062, which specifies the requirements for hot-rolled medium and high tensile structural steel.
• IS2062 E250 Coils: These are hot rolled coils made from IS2062 grade E250 steel, which is commonly used for general structural purposes.
• IS2062 E250 A Coils: Similar to E250 coils, but with improved properties, making them suitable for applications requiring higher strength.
• IS2062 E250 DR COILS: These coils are made from deep drawing quality steel (DR), suitable for applications involving deep drawing processes.
• IS2062 E250 BO COILS: BO stands for boiler-quality, indicating that these coils are used in the manufacturing of boilers and pressure vessels.
• IS2062 E250 BR COILS: BR stands for bridge-quality, and these coils are used in bridge construction due to their specific strength requirements.
• IS2062 E250 C COILS: C grade coils are made from steel with carbon content optimized for enhanced weldability.
• ASTM A 36 Hot Rolled Coils: These coils comply with the American Society for Testing and Materials (ASTM) A36 standard, which covers carbon structural steel shapes, plates, and bars.
• IS2062 E350 Coils: Similar to E250, but with higher strength, suitable for more demanding structural applications.
• IS2062 E350 A Coils: Enhanced version of E350 coils with improved strength characteristics.
• IS2062 E350 BO COILS: These coils are used in the fabrication of boilers and pressure vessels, requiring better quality steel.
• IS2062 E350 BR COILS: Specifically used in bridge construction due to their strength and durability.
• IS2062 E350 C COILS: Coils with optimized carbon content for better weldability and formability.
• IS2062 E410 BR COILS: These coils are made from high tensile steel IS2062 E410, suitable for heavy-duty applications.
• IS2062 E450 BR COILS: Coils made from high strength IS2062 E450 steel, commonly used in construction and engineering applications.

Apart from IS standards, there are other specifications:

• IS 1079 Coil: Refers to hot-rolled carbon steel sheets and strips used in various applications.
• IS 10748 Coils: These coils are made from hot-rolled non-alloy steel sheet and strip for cold forming.
• IS5986 2017 ISH410S: Coils made from HSLA (High-Strength Low-Alloy) steel with 410 MPa minimum yield strength.
• IS5986 2017 ISH490S: Coils made from HSLA steel with 490 MPa minimum yield strength.

2. Cold Rolled Coils:

Here are some standards and grades of Cold Rolled Coils:

• ASTM A1008: This is the standard specification for cold-rolled, carbon, structural, high-strength low-alloy, and high-strength low-alloy with improved formability steel sheets.
• ASTM A1008 CS Type A: Cold-rolled coils with a specific chemical composition, providing good formability and suitable for bending and moderate forming applications.
• ASTM A1008 CS Type B: Similar to Type A, but with slightly different chemical composition, offering enhanced strength and formability.
• ASTM A1008 CS Type C: Coils with further adjusted chemical composition, providing higher strength and improved formability.
• ASTM A1008 DS Type A: Cold-rolled coils made from deep-drawing quality steel, suitable for applications involving deep drawing processes.
• ASTM A1008 DS Type B: Similar to DS Type A, but with improved strength characteristics.
• ASTM A1008 DDS: Coils made from deep-drawing quality steel, ideal for applications requiring excellent formability and deep drawing properties.
• ASTM A1008 EDDS: Coils with extremely deep-drawing properties, designed for complex forming processes.
• ASTM A1010: This standard specifies cold-rolled, metallic-coated, high-strength, low-alloy carbon-steel sheet.
• ASTM A1010 CS Type A: Cold-rolled coils with a specific chemical composition for excellent formability and weldability.
• ASTM A1010 CS Type B: Coils with improved strength and formability compared to CS Type A.
• ASTM A1010 CS Type C: Cold-rolled coils with higher strength and formability, suitable for structural applications.
• ASTM A1010 DS Type A: Coils made from deep-drawing quality steel, suitable for complex forming applications.
• ASTM A1010 DS Type B: Similar to DS Type A, but with enhanced strength properties.
• ASTM A1010 DDS: Coils with very deep-drawing properties, ideal for applications requiring extensive forming.

Each of these standards and grades offers specific properties and characteristics tailored to different industrial needs, ensuring that the appropriate steel coils are used in various applications such as automotive components, construction materials, appliances, and more.

Steel coils are manufactured through a multi-step process starting with steelmaking, either through Basic Oxygen Furnace (BOF) or Electric Arc Furnace (EAF). The steel is then cast into semi-finished products, like slabs or billets, using continuous casting. These semi-finished products are hot rolled to shape them into a long continuous strip. Pickling follows to remove surface impurities, and cold rolling is done to achieve the desired thickness and improve dimensional accuracy. Annealing is employed to enhance the material’s properties. Finally, the steel strip is coiled onto large spools, creating the steel coils that are widely used in various industries for their strength and versatility.