Hot Rolled Steel Coil is produced by rolling steel slabs at high temperatures (typically above 1100°C). The process ensures good mechanical properties, stable thickness, and excellent formability. Below is a clear and concise overview of the production process:

1. Steelmaking

Iron, scrap, and alloys are melted in a converter or electric arc furnace. Chemical composition is adjusted to meet the required steel grade.

2. Continuous Casting

The molten steel is solidified in a continuous caster to form slabs, usually 150–250 mm thick.

3. Reheating Furnace

Slabs are heated to 1100–1250°C to prepare for rolling.

4. Roughing Mill

Heated slabs pass through roughing stands, where they are elongated and reduced in thickness to form an initial steel strip.

5. Finishing Mill

The strip is further rolled in a series of finishing stands to achieve the target thickness (1.2–25 mm) with improved surface quality and dimensional accuracy.

6. Laminar Cooling

The hot strip is rapidly cooled using laminar flow water cooling to achieve the desired microstructure and mechanical properties.

7. Coiling

The cooled strip is wound into Hot Rolled Steel Coils (typically 10–30 MT per coil).

8. Inspection & Packing

Thickness, width, surface, and mechanical properties are tested. Qualified coils are then strapped, labeled, and prepared for storage or shipment.