What is the Stainless Steel coil Slitting process?

Coil Slitting is a method used to cut metal wherein large rolls or metal coils are cut using sharp rotary blades. They are cut length-wise to obtain straight lines along with the coil thus creating narrow strips. As the coil runs through the slitter, circular blades are used. These blades are referred to as “knives”. These knives can be moved accordingly to obtain varying widths.

Before going through the slitting process, the coils are uncoiled and laid flat of the leveler, and are made ready for the slitting machine. The width of the coil is adjustable and customizable. Different applications call for varying steel coils.

Let’s discuss the characteristics of Stainless Steel coils

Stainless Steel is available in a variety of grades with varying chemical, mechanical, and physical properties. Among all of the grades available, stainless steel grade 316 is the variant that is widely used in the production of Slit coils.

Stainless Steel 316 slit coils undergo post-weld annealing treatment. They are heated up to 1120 degrees Celsius and are cooled down rapidly. Grade 316 Stainless steel coils cannot be hardened via the heat treatment process. Large and heavy welded joints and sections require annealing to ensure excellent corrosion resistance. SS316 coils are tough and ductile and can be fabricated with ease.

Stainless Steel coils have great corrosion resistance even against pitting and chloride causing corrosion. These coils have great weldability and formability. It can be easily broken, rolled, or formed into various components. Thin sections do not require annealing.

Stainless Steel Slit Coils have a great range of atmospheric environments and can withstand extreme corrosive media. They have great oxidizing properties in intermittent services up to 870 degrees Celsius and 925 degrees Celsius in continuous service.

Stainless Steel 304 and 316 are two of the best grades of Stainless steel to manufacture slit coils. They are austenitic and repel corrosion exceedingly well. They are easily malleable and can be beaten into super thin and flexible sheets. SS grade 316 slit coils can be cold worked with ease.

Applications of SS slit coils

1. Food production equipment

2. Lab benches and equipment

3. Coastal architecture

4. Heat exchangers

5. Railings

6. Petrochemical industry

7. Chemical industry

8. Architectural paneling

9. Boat fittings

10. Water filters

11. Exhaust systems

12. Pharmaceutical equipment

13. Pulp and paper manufacturing industries, etc.