Your Professional Sheets and Coils Supplier
Shandong Ruitong Heavy Industry Technology Co., Ltd. is located in the Jining National High-tech Industrial Development Zone, Shandong Province, a region rich in cultural heritage and known as the birthplace of Confucius and Mencius. Founded in 2010, the company covers an area of 50,000 square meters and employs more than 300 people. It is a comprehensive solution provider specializing in steel structure construction engineering.
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Color Steel CoilOur color steel coils share nearly the same production process as color steel sheets, both undergoing strict quality control. Starting with base materials like cold-rolled steel strip or...view more -
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Pre-painted Steel SheetColor coated steel sheets are made on continuous production lines. Starting with base materials like cold-rolled steel strip or galvanized steel strip, the substrate undergoes surface treatment to...view more -
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![Color Steel]()
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Why Choose Us
Our Services
The main structure is warranted for 10–25 years, and coatings are warranted for 5–10 years. The company provides a 48-hour response time.
Production Capacity
The company has an annual production and construction capacity of 200,000 square meters of membrane structures, 500,000 square meters of space frame structures, and 800,000 square meters of steel structures.
Quality Control
The company implements strict quality control measures, including raw material testing, welding process qualification, and non-destructive testing.
Certifications
The company has obtained multiple general contracting and specialized contracting qualifications for steel structure engineering. It has been recognized as a National High-Tech Enterprise, a provincial- and municipal-level credit enterprise, and a recipient of the Steel Structure Engineering Gold Award. The company also holds multiple patents related to steel structure manufacturing and construction.
Product Description
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Name |
Color Steel Coil |
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Thickness |
0.12mm-1.5mm, according to customer's requirement |
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Width |
750mm-1250mm, according to customer's requirement |
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Standard |
GBT2518-2008, ASTM A653 JIS G3302 ,EN 10142 and etc |
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Material grade |
SGCC/SGCH/CS Type A and B/DX51D/DX52D/G550/S280/S350 ETC. |
|
Zinc coating |
Z30-Z275 |
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Color standard |
RAL NO, Wooden color, Military color, or as per customer's request |
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Coating |
Top coating: 5-30UM |
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Back coating: 5-15UM |
|
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Coating types |
Top Paint: PVDF, HDP,SMP,PE,PU |
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Primer Paint: Polyerethane, Epoxy, PE |
|
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Back Paint :Epoxy, Modified Polyester |
|
|
Surface treatment |
Passivation or Chromated, Skin Pass, Oil or Unoiled, or Antifinger print |
|
Coil weight |
3-5 tons or as customer's requirement |
|
Coil inner Diameter |
508/610mm or as per your request |
|
Package |
Standard seaworthy export packing: 3 layers of packing, Plastic film in the first layer, second layer is Kraft paper.Third layer |
|
Application |
Building &Construction, Household appliances, transportation, roofing sheet |
Characteristics of Color Coated Steel Coils
Corrosion Resistance:
Color coated steel coils are designed to resist corrosion, ensuring longevity in diverse environmental conditions. The protective coating acts as a barrier against moisture, preventing the formation of rust and corrosion on the underlying steel.
Aesthetic Appeal:
One of the primary advantages of color coated steel coils is their aesthetic versatility. The wide range of available colors and finishes allows architects and manufacturers to achieve desired visual effects, making these coils ideal for applications where appearance matters.
Durability:
The additional coating not only enhances the steel’s corrosion resistance but also contributes to its overall durability. This makes color coated steel coils suitable for use in challenging environments, including those with high humidity, extreme temperatures, or exposure to harsh chemicals.
Weather Resistance:
Color coated steel coils are engineered to withstand the impact of various weather conditions. Whether it’s intense sunlight, heavy rainfall, or snow, the protective coating helps maintain the integrity of the steel and prevents damage from prolonged exposure.
Formability:
These coils exhibit excellent formability, allowing for a wide range of fabrication processes. Manufacturers can easily shape and mold color coated steel to meet specific design requirements without compromising the integrity of the coating.
Ease of Maintenance:
The coated surface of these steel coils is relatively easy to clean and maintain. Regular cleaning can help preserve the aesthetic appeal and protective properties of the coating, ensuring a longer service life.
Manufacturing Process of Color Coated Steel Coils
The production of color coated steel coils involves several key steps:
Surface Cleaning: The steel substrate undergoes thorough cleaning to remove any impurities, rust, or contaminants that could affect the adhesion of the coating.
Surface Pretreatment: A chemical pretreatment is applied to the cleaned surface to enhance the adhesion of the coating and improve corrosion resistance.
Primer Application: A primer is applied to the pre-treated surface to promote better adhesion of the color coating.
Color Coating: The color coating, usually a layer of paint or another protective material, is applied to the primed surface. This step defines the aesthetic appearance of the final product.
Curing: The coated steel is subjected to high temperatures to cure the coating, ensuring its proper adhesion and durability.
Cooling and Inspection: The coated steel is cooled, and a thorough inspection is conducted to ensure quality and adherence to specifications.
PERFORMANCE TESTING
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→ Scratch Hardness (T/B): |
1.5-2 / 1-1.5Kg |
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→ Impact Test (in Joules) (thickness based soft material): |
As per Standard |
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→ Salt Spray Test (specific to coating type): |
500-1500 hrs with cross hatch |
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→ Erichsen Cupping Test : |
As per standard |
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→ Humidity Test : |
750-2000 Hrs |
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→ T- Bend Test (T= substrate thickness): |
Top Coat = 2T & BackCoat = 4T for soft / semihard material. 0T for special requirements |
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→ Water Boling Test : |
As per Standard |
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→ Solvent Rub Test (MEK-double rub): |
100 DR for non-metallic, 80 DR metallic |
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→ Cross Hatch Test : |
100/100 |
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→ Max Operating Temp: |
Up to 140 *C |
The coating process is the process of continuously coating steel coils. Coils are uncoiled, welded, rolled, inlet kits, pre-treatment (including chemical degreasing and chemical conversion), primer coating, drying, cooling, top coating, drying, cooling, outlet kits and coils.
Packaging & Shipping
Product packaging can be customized according to customers and according to factory standards
Our Certificate
FAQ
As one of the most experienced sheets and coils manufacturers in China, our customized products have good reputation in the market. Please feel free to buy high quality sheets and coils in stock here from our factory. For price consultation, contact us.
Metal faced Sandwich Panel, Pre painted Steel Sheet, Color Steel Sheet
