PRE-PAINTED ALUZINC STEEL IN COIL System 1

PRE-PAINTED ALUZINC STEEL IN COIL

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Description:

Specification

1. Thickness: 0.3-0.8mm

2. Width: 914-1250mm

3. Inner Diameter: 508mm

4. Weight of Steel Coil: 3-15MT

5. Available Dipped Layer: 50-150g/m²

6. Surface Texture: Normal Coated

7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.

8. Front side paint thickness: 15-25μm (bottome paint + top paint)

9. Back side paint thickness: 5-10μm

Mechanical Properties

1. Mechanical properties of base metals

Grade	Tensile Test
Grade	Yield Strength MPa	Tensile Strength MPa	Elongation A80mm % ≥
DC51D+AZ	280-325	320-500	22
DC52D+AZ	240-300	270-420	26
DC53D+AZ	140-260	270-380	30

2. Common performance of front coating

(1). Thickness: ≥20μm

(2). Pencil Hardness: 2H

(3). 60° specular glossiness of coating: >60

(4). 180°bend: ≤3T

(5). Impact: ≥9J

(6). Salt Fog Resistant: ≥500h

(7). Color difference: <3ΔE

Q: How are steel coils coated or painted?: Steel coils are coated or painted through a process called coil coating, which involves cleaning the surface, applying a primer, and then adding a topcoat using various techniques such as roll coating, spray coating, or electrostatic coating. This ensures that the steel coils have a protective layer and an aesthetically pleasing finish.

Q: What are the different methods of uncoiling steel coils?: Uncoiling steel coils can be done in several ways, depending on the specific requirements and available equipment. Some commonly used methods are: 1. Manual uncoiling: This method involves manually unwinding the coil using a bar or rod inserted through the inner diameter. It is suitable for smaller coils or when other methods are not accessible. 2. Mandrel uncoiling: A mandrel, a cylindrical tool, supports the inner diameter of the coil and enables free rotation. The coil is placed on the mandrel and rotated to unwind the steel. 3. Decoiler machine uncoiling: Designed specifically for uncoiling steel coils, these machines consist of a mandrel or drum to hold the coil. They also include a motorized mechanism to control the speed of unwinding. Decoilers are suitable for larger and heavier coils, making them ideal for industrial applications. 4. Straightener-feeder uncoiling: This method is utilized when the steel coil needs to be straightened and fed into a production line simultaneously. The coil passes through straightening rollers to remove any curvature before being fed into the subsequent processing equipment. 5. Recoiler uncoiling: Recoilers are used when the steel coil needs to be rewound into a new coil. The original coil is uncoiled using one of the previously mentioned methods, and then the steel is rewound onto a new mandrel or drum to create a smaller coil. It is important to consider factors such as the size and weight of the coil, desired level of automation, and specific production requirements when choosing an uncoiling method.

Q: What are the different types of edge conditions in steel coils?: There are several types of edge conditions that can be found in steel coils. Some common examples include mill edge, slit edge, and sheared edge. The mill edge refers to the original edge of the coil as it comes from the steel mill, which may have a rougher or irregular appearance. Slit edge is created when the coil is slit into narrower widths, resulting in smoother and more precise edges. Sheared edge is produced when the coil is cut using a mechanical shear, typically resulting in a straight and clean edge. These different edge conditions can have varying effects on the performance and appearance of the steel coils in different applications.

Q: How are steel coils used in the manufacturing of fasteners?: Steel coils are commonly used in the manufacturing of fasteners because they provide a cost-effective and efficient way to produce large quantities of fasteners. The steel coils are unwound and then fed into machines that cut, shape, and thread the steel to create various types of fasteners such as screws, bolts, and nails. The high strength and durability of steel make it an ideal material for fasteners, ensuring secure and reliable connections in a wide range of applications.

Q: What are the different types of steel coil storage systems used during processing?: There are several types of steel coil storage systems commonly used during processing, including coil racks, coil saddles, coil cradles, coil pads, and coil blocks. These systems are designed to safely store and handle steel coils, ensuring efficient processing operations and minimizing the risk of damage or accidents.

Q: What are the different types of steel coil surface treatments for indoor applications?: The different types of steel coil surface treatments for indoor applications include hot-dip galvanizing, electro-galvanizing, and organic coating.

Q: What are the different methods of surface treatment for steel coils?: Steel coils can undergo various surface treatment methods, each with its own advantages and uses. Some commonly employed techniques include: 1. Hot-dip galvanizing: Immersing the steel coil in molten zinc results in a protective coating. This process offers excellent corrosion resistance and is commonly employed in outdoor applications like roofing, fencing, and automotive parts. 2. Electro-galvanizing: A thin layer of zinc is electroplated onto the steel coil's surface. Electro-galvanizing provides similar corrosion resistance to hot-dip galvanizing but with a thinner coating. It is often utilized when a smooth and visually appealing finish is desired, such as in appliances, electrical equipment, and automotive components. 3. Powder coating: A dry powder is applied to the steel coil's surface and cured under heat to form a durable and protective layer. This method offers excellent resistance to chipping, scratching, and fading, making it suitable for both indoor and outdoor applications. 4. Painting: Liquid paint coatings can be applied to steel coils, offering both protection and aesthetic appeal. These coatings can be customized to meet specific requirements such as corrosion resistance, UV protection, or chemical resistance. They find common usage in industries like construction, automotive, and appliances. 5. Pickling and oiling: This method involves removing scale or rust from the steel coil's surface by dipping it in an acid solution (pickling), followed by a coating of oil to prevent reoxidation. Pickling and oiling are typically employed for temporary corrosion protection during the storage and transportation of steel coils. 6. Pre-painted coatings: Steel coils can be coated with pre-painted finishes during the manufacturing stage. This continuous process involves passing the steel coil through a coating line where a layer of paint is applied. Pre-painted coatings offer a wide range of colors and finishes, making them popular in industries like construction, automotive, and appliances. These are only a few examples of the surface treatment methods commonly used for steel coils. The selection of a specific technique depends on factors such as desired corrosion resistance, aesthetic preferences, environmental conditions, and specific application requirements.

Q: What are the different types of surface finishes for steel coils?: There are several different types of surface finishes for steel coils, each offering its own unique properties and advantages. Some of the most common surface finishes for steel coils include: 1. Hot Rolled: This is the most basic surface finish for steel coils and is achieved by heating the steel and then rolling it to its final shape. It typically has a rough and scale-like appearance, with varying levels of surface imperfections. 2. Cold Rolled: This surface finish is achieved by further processing hot rolled steel coils through a series of cold rolling operations. Cold rolled steel has a smoother and more uniform surface compared to hot rolled steel, with improved dimensional accuracy and better surface quality. 3. Galvanized: Galvanizing is a process in which a protective layer of zinc is applied to the surface of the steel coil. This surface finish provides excellent corrosion resistance, making it ideal for outdoor applications and environments where the steel is exposed to moisture and other corrosive elements. 4. Stainless Steel: Stainless steel coils have a unique surface finish due to the presence of chromium, which forms a thin, invisible layer of oxide on the surface. This surface finish provides excellent corrosion resistance and a visually appealing appearance. 5. Electrolytically Zinc Coated: Also known as electrogalvanized, this surface finish involves the application of a thin layer of zinc to the steel coil through an electroplating process. It provides good corrosion resistance and is commonly used in applications where aesthetics are important. 6. Pre-painted: Pre-painted steel coils have a surface finish that is coated with a layer of paint or other protective coatings. This finish offers both corrosion resistance and aesthetic appeal, allowing for a wide range of colors and finishes to be applied. 7. Aluminized: Aluminized steel coils have a surface finish that is coated with a layer of aluminum-silicon alloy. This finish provides excellent heat resistance and is commonly used in applications where high temperatures are encountered, such as exhaust systems or ovens. Overall, the choice of surface finish for steel coils depends on the specific requirements of the application, including factors such as corrosion resistance, aesthetics, durability, and heat resistance.

Q: And by how much? I'm pretty sure that sterling silver is stronger, but I'm wondering if I could still use a metal stamp to stamp into something that's stainless steel - if it would be soft enough?: Sterling is always best, but, in the 30's and 40's India also plated silver with brass overlay, believe it or not. They thought the look would be more attractive to tourist and more Indian traditional. Pieces marked India have been found to be 80% silver with brass overlay. Several times I have taken India marked pieces that looked brass to a metallurgist and found they are actually 80% silver with brass coatings. Like anything else, this is not always the case, either way, pieces marked and numbered will draw attention.

Q: How are steel coils used in the production of electrical transmission poles?: Steel coils are used in the production of electrical transmission poles as the primary material for constructing the pole itself. The steel coils are typically cut and shaped into the desired dimensions, then welded together to form the pole structure. This provides strength, durability, and stability to withstand the load and environmental conditions associated with electrical transmission lines.

Send your message to us

*Email

*TEL

*Quantity

*Unit