Color-coated Steel Strip Coil/Sheet

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Color-coated Steel Strip Coil/Sheet

/m²

Product Origin:	China
MinimumOrder Quantity:	3 tons
Packaging Details:	Standard export packaging or as per customer requirements.
Delivery Time:	5 – 8 days
Payment Method:	Letter of Credit/Telegraphic Transfer/Western Union Remittance/Open Account Trade
Supply Capacity:	6,000 tons per month
Delivery Method:	FOB/CFR/CNF/CIF/EXW

Product Description

Overview of International Color Coated Steel Coils/Sheets Products：

Core Definition:

Color-coated steel coils are composite materials made by using cold-rolled, hot-dip galvanized, or aluminum-zinc alloy coated steel sheets as the base plate, undergoing surface pretreatment (cleaning, conversion), continuously applying one or more layers of organic coatings (at least two layers on the front and usually one layer on the back), and then baking and curing. They combine the strength of the metal base plate with the aesthetics and weather resistance of polymer coatings.

Main Features:

Decorativeness and diversity: Offering a variety of colors, gloss levels (high gloss, matte), and surface textures (flat, micro-velvet, embossed).

Excellent weather resistance and durability: High-quality coatings can resist ultraviolet rays, acid rain, and salt spray erosion, maintaining color and gloss for a long time.

Good processability: Allowing moderate bending, stamping, and forming.

Cost-effectiveness: Integrating protection and decoration, reducing the cost and time of secondary coating in manufacturing and construction sites.

Core Structure and Process:

Base plate:

Hot-dip galvanized base plate: Providing basic anti-rust ability.

Aluminum-zinc coated base plate: Having better heat resistance and resistance to edge corrosion.

Cold-rolled base plate: Usually used indoors or in non-corrosive environments.

Coating system:

Primer coating: Mainly functioning in adhesion and corrosion resistance, commonly using epoxy or polyester types.

Top coating: Mainly providing color, weather resistance, and durability, commonly using polyester, silicon-modified polyester, high-durability polyester, and polyvinylidene fluoride.

Core Value Proposition:

Through advanced composite material technology, color-coated steel coils achieve the perfect integration of protection, decoration, and functionality, providing long-lasting, beautiful, and sustainable lightweight material solutions for the global construction and manufacturing industries.

Standards and Grades of Color-Coated Steel Coils/Sheets

Standard	Steel Grade			Coating
EN 10169	Class A	Class B	Class R	Z/AZ
ASTM A755/755M/ AAMA 621	PET	SWP		Z//G
ASTM A755/755M/ AAMA 621	PVDF			Z//G
JIS G3312	SGH340	SGH400	SGH440	Z/F
JIS G3312	SGH490	SGC400	SGC440	Z/F
GB/T12754-2019	PET	SWP	PVDF	Z/F/AZ/ZE/ZNE

Midwest Steel Supply Services

Demand for Lightweight and Durability

Material Strength Standard

Covers substrates with strength ranging from 280MPa to 550MPa, reducing material usage while ensuring structural safety.

Weather Resistance Test Results

The product's salt - spray resistance exceeds 1000 hours, ensuring durability in extreme climatic conditions.

Environmental - friendliness, High Efficiency, Personalization, Greenness

Characteristics of New - type Environment - friendly Coatings

Chromium - free and environmentally friendly, compliant with RoHS and REACH standards. It contributes to green building certification and enables low - impact decoration.

Advantages of Custom - made Natural Textures

Wood - like and stone - like textures can be customized, replacing highly polluting materials, achieving a balance between aesthetics and environmental protection.

High Corrosion - resistant Duration and Wide Strength Range

Salt Spray Test Results of Different Coatings

The influence of different coating thicknesses on corrosion resistance. The test results show that when the coating thickness is above 20μm, its anti - corrosion effect is relatively stable.

Anticorrosion mechanism.

Coating failure, plating failure and even perforation of the steel plate are key corrosion processes. Therefore, increasing the thickness of the coating and plating, and using weather - resistant and corrosion - resistant coatings and platings are effective means to prevent the corrosion failure of color - coated sheets.

The relationship between coating weight and lifespan.

The thickness of the plating layer and the processing technology can also affect the final corrosion resistance of the color - coated products. It can play the role of a "firewall" and greatly improve the corrosion resistance of the products.

Customized Coating Solutions