Colour Coated Sheet
Youcheng Technology: Your Leading Colour Coated Sheet Supplier in China!
Tianjin Youcheng Technology Co., Ltd. is a professional supplier of carbon steel, stainless steel, and coated steel products, serving customers in the construction, manufacturing, and infrastructure industries. Our products encompass steel coils, plates, pipes, and structural materials, offering comprehensive specifications and customization options.
Custom Production Capability
All products can be customized to your specifications, drawings, or project requirements in terms of size, grade, thickness, and surface treatment.
Reliable Quality Assurance
From raw materials to finished products, we implement rigorous inspection processes to ensure compliance with international standards and guarantee consistent batch quality.
Advanced Production Equipment
We possess state-of-the-art production equipment, such as high-precision resistance-welded pipe rolling mills, automated hot rolling mills, and intelligent non-destructive testing systems.
Wide Sales Regions
Our products are widely sold in the Middle East, South America, Southeast Asia, and other regions.
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Gi Colour Coated Sheet PriceGrade:Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275J. Standard:ASTM, DIN, JIS, BS, GB/T. Applications:House, Bridge, Transmission tower, Ship, Industrial furnace.Add to Inquiry
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Color Coated Steel CoilGrade:Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275J. Standard:ASTM, DIN, JIS, BS, GB/T. Applications:House, Bridge, Transmission tower, Ship, Industrial furnace.Add to Inquiry
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Galvalume Colour Coated SheetGrade:SGCC,DX51D+Z,SGLCCD,X51D+AZ. Certificate:API , SABS, SIRM, JIS, ISO 9001. Applications:tructural use ,roofing, corrugated roofing, commercial use, household appliance, industryAdd to Inquiry
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Colour Gi SheetSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JWidth: 4.0cm-2.4m, or customizedApplication: home appliance, building material, machinery, roofing sheet, metal roofing,Add to Inquiry
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Color Coated Gi SheetSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JWidth: 4.0cm-2.4m, or customizedApplication: home appliance, building material, machinery, roofing sheet, metal roofing,Add to Inquiry
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Prepainted Galvanized Steel CoilSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JStandard : ASTM, DIN, JIS, BS, GB/TApplication: House, Bridge, Transmission tower, Ship, Industrial furnaceAdd to Inquiry
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Jsw Roofing Sheet ColorsSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JStandard : ASTM, DIN, JIS, BS, GB/TApplication: House, Bridge, Transmission tower, Ship, Industrial furnaceAdd to Inquiry
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Color Coated Profile SheetSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JStandard : ASTM, DIN, JIS, BS, GB/TApplication: House, Bridge, Transmission tower, Ship, Industrial furnaceAdd to Inquiry
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Galvanized Colour Coated Roofing SheetSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JWidth: 4.0cm-2.4m, or customizedApplication: home appliance, building material, machinery, roofing sheet, metal roofing,Add to Inquiry
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Colour Coated Sheet RollSteel Grade: Q235, Q345, SS400, ST37-2, ST52, Q420, Q460, S235JR, S275JStandard : ASTM, DIN, JIS, BS, GB/TApplication: House, Bridge, Transmission tower, Ship, Industrial furnaceAdd to Inquiry
Introduction
Colour coated steel sheet, also known as pre‑painted steel, is a high‑performance steel product with protective and decorative coatings. It consists of a base steel substrate (usually cold‑rolled or galvanized) with polymer paint layers on one or both sides.
Specification Of Colour Coated Sheet
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Tolerance |
±1% |
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Zinc coating |
30-275g/m2, according to customer's requirement |
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Certificate |
JIS, ISO9001, API , BIS, Gs |
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Surface |
Hot-dip Galvanized |
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RAL Color |
Can be customized |
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Length |
Customized(1-30t/coil) |
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Width |
50cm-2.2m or as required |
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Technique |
Hot-dipped galvanized |
Features

Excellent Corrosion Resistance
Paint and base coatings protect steel from rust and environmental damage.

Good Formability
Suitable for bending, profiling, and roll forming without cracking.

Weather Resilience
PVDF and high‑performance coatings resist UV, humidity, and outdoor exposure.
Processing & Production Methods
To ensure product performance and fabrication flexibility, colour coated steel sheets are produced and processed using the following methods:
Surface Pretreatment
The base steel is cleaned, de‑greased, and chemically treated to improve paint adhesion and corrosion resistance.
Coating Application (Continuous Paint Line)
Automated painting systems apply primer and finish coats with precise control of thickness and quality.
Curing and Baking
A controlled oven curing process ensures strong adhesion and coating hardness.
Roll Forming
Sheets can be roll formed into profiles such as roofing, wall panels, purlins, and other construction shapes.
Slitting & Cut‑to‑Length (CTL)
Steel coils can be slit to precise widths and cut to lengths required by your fabrication or assembly process.
Embossing and Surface Structuring
Optional surface patterns for texture, anti‑fingerprint, or anti‑skid applications.
Customization Capability
We provide flexible supply solutions tailored to your project requirements:
Custom Sizes and Lengths
Coils can be slit and cut to requested widths and lengths.
Tailored Surface Finishes
Choice of paint systems (PE / SMP / PVDF) based on performance needs.

Quality Assurance
Strict quality control throughout manufacturing ensures consistent performance:
Pretreatment adhesion testing
01
Coating thickness & hardness measurement
02
Weather resistance testing (UV / salt spray)
03
Dimensional accuracy (flatness, thickness tolerance)
04
Mechanical property testing of base steel
05
Certificate



FAQ
We're professional colour coated sheet manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to wholesale high-grade colour coated sheet for sale here from our factory.
Galvanized Colour Coated Roofing Sheet, metal tread plate, 1 8 inch diamond plate steel

















