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White Painted Black Annealed Steel Iron and Color Coated Steel Coil
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White Painted Black Annealed Steel Iron and Color Coated Steel Coil

Thickness Customizable
Coating Z10-Z29
Width Customizable
Length Customizable
Certificate ISO9001
Tolerance ±1%
RAL Color red, blue, black, etc.
  • HongHua

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Product Overview


TianJin ShengTeng Steel, a professional enterprise specializing in steel products including steel pipes, galvanized pipes, steel sheets, and scaffolding products, proudly presents its high-quality White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil. This product combines advanced manufacturing technology with strict quality control, making it a reliable choice for various industrial and construction applications.


Black annealed steel iron serves as the core base material of this coil. Through the annealing process, the steel gains excellent ductility and toughness, which lays a solid foundation for subsequent processing and application. The surface is first treated with a black annealed layer to enhance corrosion resistance and adhesion, and then coated with a white paint layer or other color coatings according to customer needs. This dual-layer or multi-layer coating structure not only improves the product's aesthetic appearance but also significantly enhances its resistance to environmental factors such as moisture, oxidation, and UV radiation. Whether used in indoor decoration or outdoor engineering, this product can maintain its performance and appearance for a long time, providing users with long-term value.


Product Specifications


The White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil from TianJin ShengTeng Steel has a comprehensive range of specifications to meet the diverse needs of customers. The detailed parameters are shown in the following table:


Specification Category

Parameter Details

Material Grade

Q195, Q215, Q235 (carbon steel grades), and other customized grades

Thickness

0.12mm - 2.0mm (common thickness range); customized thickness available for specific requirements

Width

600mm - 1250mm (standard width); non-standard width can be customized with a minimum order quantity

Length

Customized according to customer needs (usually supplied in coil form, with coil weight ranging from 3 tons to 15 tons)

Coating Type

White paint (polyester, polyurethane, epoxy resin) and other color coatings (customizable colors based on RAL color card)

Coating Thickness

Primer: 5μm - 10μm; Topcoat: 15μm - 25μm; Total coating thickness: 20μm - 35μm

Surface Finish

Smooth, matte, or textured (customizable based on application scenarios)

Annealing Process

Full annealing (to ensure uniform ductility and eliminate internal stress)

Mechanical Properties

Tensile Strength: 315MPa - 510MPa; Yield Strength: ≥235MPa; Elongation (after fracture): ≥25%

Corrosion Resistance

Passes 500-hour neutral salt spray test (for polyester coating); no obvious rust or peeling


Features


Mechanical Performance

Thanks to the black annealing process, the steel coil has excellent ductility and toughness. It can withstand a certain degree of bending, stamping, and other processing operations without cracking or deformation, which greatly expands its application scope in the manufacturing field. For example, in the production of metal furniture or electrical enclosures, the product can be easily processed into various shapes to meet the design requirements of different products. At the same time, its stable tensile strength and yield strength ensure that it can bear a certain load in practical applications, providing reliable structural support.


Superior Corrosion Resistance

The multi-layer coating structure (black annealed layer + primer + topcoat) forms a strong protective barrier on the surface of the steel coil. The black annealed layer first isolates the steel base from the external environment to prevent initial oxidation and corrosion. The primer further enhances the adhesion of the topcoat and provides additional corrosion resistance, while the topcoat (such as polyester coating) has excellent resistance to moisture, chemicals, and UV radiation. This enables the product to maintain good performance in harsh environments such as humid coastal areas, industrial workshops with chemical vapors, and outdoor exposed areas for a long time, effectively extending its service life.


Diverse Aesthetic Options

With a variety of color coatings (customizable according to RAL color card) and surface finishes (smooth, matte, textured), the White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil can meet the aesthetic needs of different application scenarios. The white paint coating gives the product a clean and bright appearance, which is suitable for indoor decoration fields such as interior wall panels and ceiling materials. Other colors such as gray, blue, and red can be used in outdoor billboards, building facades, and other places to enhance the visual appeal of the project. The textured surface finish can also add a unique touch to the product, making it more in line with the personalized design requirements of customers.


High Cost-Effectiveness

TianJin ShengTeng Steel optimizes the production process and controls the cost of raw materials on the premise of ensuring product quality. Compared with other similar high-performance steel coils on the market, this product has a more competitive price. At the same time, its long service life and low maintenance cost reduce the overall cost of use for customers. For example, in large-scale construction projects, using this product can not only ensure the quality and appearance of the project but also reduce the later maintenance and replacement costs, bringing higher economic benefits to the project.


Applications


Construction Industry

In the construction industry, the White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil is widely used in the production of building exterior wall panels, roof panels, and interior decoration materials. The exterior wall panels made of this product have excellent corrosion resistance and weather resistance, which can withstand the erosion of wind, rain, and sunlight for a long time, and maintain the beautiful appearance of the building. The roof panels have good load-bearing capacity and can adapt to different roof slopes. In addition, the product can also be used to make partition walls, ceiling panels, and other interior decoration materials, creating a clean and comfortable indoor environment.


Home Appliance Industry

This steel coil is an ideal material for the shell and internal components of home appliances. For example, in the production of refrigerators, washing machines, air conditioners, and other appliances, the product's excellent ductility allows it to be processed into various complex shapes of shells. The corrosion-resistant coating can prevent the internal components from being corroded by moisture and other factors, ensuring the normal operation of the appliances. At the same time, the diverse color options can make the appearance of home appliances more in line with the fashion trends and consumer preferences.


Transportation Industry

In the transportation industry, the product is used in the manufacturing of automobile parts, railway carriage components, and ship interior decoration materials. The automobile parts made of this steel coil (such as the outer covering of some commercial vehicles) have good impact resistance and corrosion resistance, which can improve the safety and service life of the automobile. The railway carriage components need to withstand frequent vibration and external environmental erosion, and the product's stable mechanical properties and corrosion resistance can meet these requirements. In addition, the product's lightweight and easy processing characteristics also help reduce the overall weight of transportation tools and improve energy efficiency.


Advertising and Signage Industry

The White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil is also widely used in the advertising and signage industry. It can be processed into various shapes of billboards, light boxes, and signs. The bright and durable color coating ensures that the advertising content is clearly visible even in outdoor environments for a long time, and the product's weather resistance can prevent the signs from fading or being damaged due to environmental factors. Whether it is a large outdoor billboard on the highway or a small sign in a shopping mall, this product can meet the use needs.


FAQ


1. Can the specifications of the White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil be customized?

Yes, TianJin ShengTeng Steel provides customized services for the product specifications. Parameters such as thickness (beyond the common range of 0.12mm - 2.0mm), width (non-standard width), length, coating type, and color can be customized according to the specific needs of customers. However, customized specifications may require a certain minimum order quantity, and the production cycle will be slightly longer than that of standard products. Customers can consult our sales team for detailed customization plans and quotation information.


2. What is the service life of the product in outdoor applications?

The service life of the White-Painted Black Annealed Steel Iron and Color-Coated Steel Coil in outdoor applications is closely related to the coating type and the use environment. Under normal outdoor conditions (without severe chemical corrosion), the product with polyester coating can have a service life of 8 - 15 years. If the product is used in harsh environments such as coastal areas with high salt content or industrial areas with serious air pollution, the service life may be slightly reduced. To extend the service life, we recommend that customers regularly clean the surface of the product to remove dust, dirt, and other impurities that may affect the coating performance.


3. Is the product environmentally friendly?

Yes, the product complies with international environmental protection standards. The coatings used (such as polyester, polyurethane, and epoxy resin) are low-VOC (volatile organic compounds) coatings, which do not release harmful substances that exceed the standard during production and use, and have no adverse impact on the environment and human health. In addition, the steel material of the product is recyclable, which conforms to the concept of sustainable development. Customers can use the product with confidence without worrying about environmental pollution issues.


White Painted Black Annealed Steel Iron and Color Coated Steel Coil


White Painted Black Annealed Steel Iron and Color Coated Steel Coil
White Painted Black Annealed Steel Iron and Color Coated Steel Coil


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