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Zhengzhou City, Henan Province, China

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Slitting Steel Coils

Slitting steel coils at Wanzhi Steel are available in different materials, such as hot/cold rolled steel, galvanized steel, prepainted steel, stainless steel, etc. These slit coils are widely used in various industries such as the automobile sector, machinery manufacturing, construction, steel structure, hardware, and others. Our slitting services ensure that the coils are precisely cut to the required size and thickness, meeting the specific needs of our clients. Welcome to contact us for more details!

Galvanized Slitting Coils

Galvanized Slitting Coils

Pre-painted Steel Strips

Pre-painted Steel Strips

Stainless Steel Strip for Sale

Stainless Steel Strip

Hot Rolled Strips

Hot Rolled Strips

Parameters of Slitting Steel Coils

Materials Thickness Width
Hot Rolled Steel 1.2-16mm 50-600mm
Cold Rolled Steel 0.5-3mm 50-600mm
Galvanized Steel 0.12-1.5mm 50-600mm
Stainless Steel 0.3-4 mm 50-600mm
Color Coated Steel 0.12-1.5mm 50-600mm

The commonly used steel codes include Q195, Q235A, Q235B, SPCC, St12, St13, DC01, SPCE, DC03, DC04, DC05, etc.

Coil weight: 0.9-3.2 tons. With the wide range of materials and specifications available, please contact us with your specific parameters. These may include the desired material and steel grade, zinc or paint thickness, width and thickness, order quantity, use purposes, and other pertinent details. By providing us with this information, we can ensure that we supply you with the most suitable product for your needs. Below is a video showing the slitting process. Please find more videos on Wanzhi Steel Chanel.

What Is Slit Coil?

Slit coil refers to a strip of steel material with a width of less than 600mm that is typically rolled into coils for delivery. It is often cut into narrower strips using a slitting machine. The width of the strip steel ranges from 50-600mm, and the thickness varies from 0.12 to 16 mm, depending on the material. The ordinary steel grades include Q195, Q235, Q345B, SPCC, St12, and DC01. While high-quality alloy and nonalloy steel strips are: 08F, 10#-40#,  15Mn, 20Mn, 25Mn, 30Mn, 35Mn, 40Mn, 45Mn, 50Mn, 30CrMo, 35CrMo, 50CrVA, 60Si2Mn (A), T8A, T10A, etc. Slit coil has a broad range of applications, including the production of welded pipes, bicycle frames, rims, gaskets, spring sheets, mechanical parts, and more.

Galvanized Slit Coil

Galvanized Slit Coil

Aluminium Strip

Aluminium Strip

Surface Quality of Slit Coils

The surface quality requirements for slit coils include the absence of bubbles, scars, cracks, folds, and inclusions, and the steel strip must not be stratified. While other surface defects are permissible, their depth and height must not exceed half of the thickness deviation. And slight red oxide scale is allowed. Surface defects are allowed to be cleaned, but the minimum thickness and width of the steel strip must be maintained after cleaning. The cleaning area should be smooth and free of sharp edges.

Uses of Galvanized Slit Coil

Galvanized slit coil has a wide range of applications in various industries due to its good corrosion resistance performance and versatility. The applications are as follows:

Processing household appliances, such as sinks, refrigerators, and washing machines;
Construction industry for making light steel keels, purlins, ceilings, and water blocking panels, ductwork for heating, ventilation, and air conditioning systems;
Automotive industry for producing trucks, large cars, and trailers;
Industrial industry as substrates for stamping materials;
Other areas, such as equipment enclosures, electrical cabinets, metal furniture, and transportation infrastructure. They are also used in the production of various types of pipes, including water pipes, gas pipes, and oil pipes.

Galvanized Slit Coils

Galvanized Slit Coils

Galvanized Strips

GI Strips

Uses of HR & CR Slit Coils

Below are some of the applications depending on the steel grades.

1. Q195-Q345 grade steel can be used to make welded pipes.

2. 10#-40# grade steel can be used to make precision tubes.

3. 45#-60# grade steel can be used to make cutting tools, stationery, and measuring tapes.

4. 40Mn, 45Mn, 50Mn, 42B grade steel can be used to make chains, chain plates, cutting tools, and saw blades.

5. 65Mn, 60Si2Mn (A) grade steel can be used to make springs, saw blades, clutches, fan blades, tweezers, and clockwork springs.

6. T8A, T10A grade steel can be used to make saw blades, surgical knives, shaving blades, and other cutting tools.

7. Hot-rolled slit coils can also be used to make bicycle frames, wheel rims, hinges for doors and windows, handles, containers, etc.

The steel codes here are based on Chinese standards. Please inform us of the width, thickness, steel grade, use purposes, etc. Then we will be able to provide you with a quote soon.

Steel Door Frame

Steel Door Frame

Ceiling Rail

Ceiling Rail

Difference Between Hot-rolled and Cold-rolled Slitting Steel Coils

1. Cold-rolled slit coil is processed by cold rolling without oxide scale on the surface and has good quality. Hot-rolled steel is processed by hot rolling with oxide scales on the surface.

2. The toughness and surface flatness of hot-rolled steel is poor, and the price is lower; while cold-rolled steel has better ductility and toughness, but the price is higher.

3. The surface of hot-rolled steel strips is black-brown, and the surface of cold-rolled strips is gray. After electro-galvanizing, the smoothness of the cold-rolled steel is higher than that of the hot-rolled steel.

Advantages of Slitting Steel Coils

1. Reduce waste: Slitting steel coils can reduce costs associated with material usage and processing. By producing narrower coils, less material is wasted during the manufacturing process, which can result in significant cost savings.

2. Flexibility: Slit coils provide flexibility in terms of the width and thickness of the metal strips. This enables manufacturers to produce different products from the same coil, which can increase operational efficiency.

3. Versatility: Slit coils can be used in a wide range of applications, including automotive, construction, and manufacturing.

Slitting Coil Line

Slitting Coil Line

Slitting Process

Slitting Process

Conclusion

In conclusion, slit steel coils are used in a variety of applications. With the precision slitting process, businesses can achieve tighter tolerances, leading to improved efficiency and reduced scrap rates. Whether you’re in the automotive, construction, or other industry, slit coil will be an ideal option. Wanzhi Steel is a factory that offers slit coils in different materials and sizes. So if you’re looking for a reliable supplier, please don’t hesitate to contact us!

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