Chinese Best Prepainted Galvanized steel Coil ASTM 615

Chinese Best Prepainted Galvanized steel Coil ASTM 615 System 1

Chinese Best Prepainted Galvanized steel Coil ASTM 615 System 2

Chinese Best Prepainted Galvanized steel Coil ASTM 615 System 3

Chinese Best Prepainted Galvanized steel Coil ASTM 615

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 26 m.t.

Supply Capability:: 22222 m.t./month

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1.Structure of Prepainted Galvanized steel Coil ：

With Gi as base metal,after pretreatmet (degrease and chemical treatment) and liquid dope with several Layers of color,then after firing and cooling,finally the plate steel is called pre-painted galvanized steel ( PPGI) .Pre-painted galvanized steel is good capable of decoration ,molding,corrosion resistance

2.Main Features of Prepainted Galvanized steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Prepainted Galvanized steel Coil Images

Chinese Best Prepainted Galvanized steel Coil ASTM 615

4.Prepainted Galvanized steel Coil Specification

Standard:ASTM, GB,JIS,JIS G3302 ASTM 755 EN10169

Grade: DX51D CGCC CS

Thickness: 0.13mm~3.0mm,

Width: 1250,600-1250mm

Coil weight:3-12 MT

Coil ID:508/610mm

Chemical composition:

0.150

0.476

11.231

12.50

0.900

0.039

0.010

5.FAQ of Prepainted Galvanized steel Coi

We have organized several common questions for our clients，may help you sincerely：

1.How do you control your quality

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

2.how long we will receive the goods ？

After receiving your deposit or workable lc ,our normal shipment date is 15-20days,and it takes around 28 days to reach your port of destination. But is up to different destination

3. what is your moq

Normally our moq is 25per size ,but it is up to different size

Q:What are the common surface treatments for steel strips?: Steel strips can undergo various surface treatments to enhance their appearance, protect against corrosion, or improve performance. These treatments include the following: 1. Hot-dip galvanizing: By immersing the steel strip in molten zinc, a protective coating forms on the surface, providing excellent corrosion resistance and extending the strip's lifespan. 2. Electro-galvanizing: This method involves applying a layer of zinc to the steel strip through an electrolytic process, offering good corrosion resistance and commonly used for thinner strips. 3. Electroplating: Coating the steel strip with a thin layer of a different metal, such as chrome or nickel, through an electrochemical process improves aesthetics and provides additional corrosion resistance. 4. Phosphating: Treating the steel strip with a phosphoric acid solution converts the surface into a layer of phosphate crystals. This improves adhesion of subsequent coatings and provides corrosion resistance. 5. Painting or powder coating: Applying paint or powder coating onto the steel strip enhances appearance, provides corrosion resistance, and improves durability. Coatings can be customized with various colors and finishes. 6. Passivation: Treating the steel strip with an acid solution removes impurities and creates a passive oxide layer on the surface. Passivation improves corrosion resistance and is commonly used for stainless steel strips. 7. Pickling: Immersing the steel strip in an acid solution removes surface impurities like rust or scale, improving surface finish and preparing it for subsequent treatments or coatings. These surface treatments for steel strips are chosen based on desired corrosion resistance, appearance, and specific application requirements. Different industries and applications may require specific treatments to ensure optimal performance in their intended use.

Q:What are the common hardness levels for steel strips?: The common hardness levels for steel strips can vary depending on the specific grade and type of steel being used. However, some commonly encountered hardness levels for steel strips include: 1. Soft or Annealed: This refers to steel strips that have undergone annealing, a process that involves heating the steel to a specific temperature and then slowly cooling it. Annealed steel strips have a lower hardness level, making them more malleable and easier to form or shape. 2. Half-hard: Steel strips that have been cold-rolled and then annealed fall into the half-hard category. They have a moderate hardness level, providing a balance between strength and formability. Half-hard steel strips are often used in applications where some degree of resilience is required. 3. Full-hard: Steel strips that have been cold-rolled without subsequent annealing are considered full-hard. They have a higher hardness level, making them more rigid and less malleable. Full-hard steel strips are commonly used in applications that require high strength and resistance to deformation, such as springs or fasteners. 4. Tempered: Steel strips that have been heat-treated and then cooled rapidly are referred to as tempered. This process increases the hardness and strength of the steel, making it suitable for applications that require enhanced durability and resistance to wear. It is important to note that the hardness level of steel strips can be measured using different scales, such as the Rockwell or Brinell hardness scales. The specific hardness level required for a particular application will depend on factors such as the intended use, environmental conditions, and desired mechanical properties. Consulting with a metallurgical expert or referring to industry standards can help determine the appropriate hardness level for steel strips in a given context.

Q:Are steel strips suitable for making aerospace components?: Yes, steel strips can be suitable for making aerospace components depending on the specific requirements and applications. Steel strips offer several advantages such as high strength, durability, and resistance to corrosion, which are important characteristics for aerospace components. They can be used in various applications including structural components, fasteners, and landing gear parts. However, it is important to consider other factors such as weight, fatigue resistance, and temperature limitations when selecting materials for aerospace components. Different types of steel and other materials like aluminum or titanium may be more suitable for certain aerospace applications, so a thorough evaluation of the specific requirements is necessary before determining the suitability of steel strips.

Q:How do steel strips compare to other materials?: Steel strips are highly durable and have excellent strength-to-weight ratio compared to other materials. They are resistant to corrosion, can withstand extreme temperatures, and are versatile in various applications. Additionally, steel strips offer superior formability and can be easily shaped into different sizes and dimensions.

Q:How are steel strips processed for welding?: Steel strips are processed for welding through a series of steps to ensure a strong and durable bond. Firstly, the steel strips are cleaned thoroughly using solvents or degreasers to remove any dirt, rust, or contaminants. This step is crucial as it helps to achieve a clean surface for better welding results. After cleaning, the steel strips are often preheated to minimize the risk of cracking during the welding process. Preheating helps to reduce the thermal stress and allows for a more controlled and uniform heating of the steel. The temperature and duration of preheating depend on the type and thickness of the steel being welded. Next, the steel strips are aligned and clamped in position to prevent movement during welding. This ensures accurate and precise welding joints. Welding techniques such as shielded metal arc welding, gas metal arc welding, or resistance welding may be used depending on the specific requirements of the project. During welding, a filler material is often introduced to create a strong and continuous weld. The filler material is chosen based on the type of steel being welded and the desired properties of the final joint. The welder carefully controls the heat and speed of the welding process to ensure proper fusion between the steel strips and the filler material. After welding, the steel strips are typically subjected to a post-weld treatment. This may involve processes like stress relieving or tempering to reduce internal stresses and improve the mechanical properties of the joint. Post-weld treatments are essential to enhance the strength, toughness, and durability of the welded steel. Finally, the welded steel strips may undergo additional processes such as grinding or polishing to achieve a smooth and uniform surface. This ensures that the welded area is aesthetically pleasing and free from any sharp edges or imperfections. Overall, the processing of steel strips for welding involves cleaning, preheating, alignment, welding with filler material, post-weld treatment, and surface finishing. These steps are carefully executed to produce high-quality welded joints that meet the required standards and specifications.

Q:What are the different cutting methods for steel strips?: There are several different cutting methods for steel strips, including shearing, slitting, laser cutting, and waterjet cutting.

Q:What are the different welding techniques used for joining steel strips?: There are several different welding techniques that can be used for joining steel strips. These techniques include: 1. MIG welding (Metal Inert Gas): Also known as Gas Metal Arc Welding (GMAW), MIG welding is one of the most common and widely used welding processes. It involves the use of a wire electrode that is continuously fed through a welding gun. The wire is melted and fuses the steel strips together, while a shielding gas protects the weld from atmospheric contamination. 2. TIG welding (Tungsten Inert Gas): TIG welding, also known as Gas Tungsten Arc Welding (GTAW), utilizes a non-consumable tungsten electrode to create the arc and heat required for welding. A filler metal may or may not be used, depending on the application. TIG welding is known for its precision and ability to produce high-quality welds. 3. Stick welding (Shielded Metal Arc Welding): This welding technique uses a consumable electrode coated in flux, which creates a shielding gas and forms a slag to protect the weld pool. Stick welding is versatile and can be used in various positions, making it suitable for joining steel strips. 4. Laser welding: Laser welding is a high-energy density welding process that uses a laser beam to melt and fuse the steel strips together. This technique offers high precision, speed, and control, making it ideal for applications that require intricate and small welds. 5. Spot welding: Spot welding is a resistance welding process that involves applying pressure and passing an electric current through the steel strips to create a localized heat, which melts and fuses the metal. It is commonly used for joining thin steel strips in automotive manufacturing and sheet metal fabrication. 6. Seam welding: Seam welding is a variation of spot welding that creates a continuous weld along the length of the steel strips. It involves rotating electrode wheels that apply pressure and current to create a series of overlapping spot welds, resulting in a leak-proof and highly durable joint. Each welding technique has its own advantages and limitations, and the choice of technique depends on factors such as the thickness of the steel strips, desired weld quality, production speed, and specific application requirements.

Q:How are steel strips packaged for shipment?: Steel strips are typically packaged for shipment by being tightly coiled and wrapped with protective materials such as plastic or paper. They are then secured with steel banding or strapping to ensure stability during transportation.

Q:Can steel strips be used in the production of surgical implants?: Yes, steel strips can be used in the production of surgical implants. Steel is a widely used material in the medical field due to its strength, durability, and biocompatibility. Surgical implants, such as orthopedic plates, screws, and pins, often require materials with these characteristics to ensure stability and long-term performance within the human body. Steel strips can be machined, shaped, and sterilized to meet the specific requirements of surgical implants. Additionally, steel has the advantage of being corrosion-resistant, which is crucial in preventing complications or reactions in the patient's body. However, it is important to note that the type of steel used for surgical implants must comply with rigorous standards and regulations, such as ISO 5832, to ensure its biocompatibility and safety for medical applications.

Q:Can steel strips be used in the production of mining equipment?: Yes, steel strips can be used in the production of mining equipment. Steel strips are commonly used in the manufacturing of various mining equipment components such as conveyor belts, buckets, drill bits, and cutting tools. Steel's high strength, durability, and resistance to wear make it a suitable material for withstanding the harsh conditions and heavy loads associated with mining operations.

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