Pre-Painted Galvanized Steel Sheet/Coil with High Quality Yellow Color

Pre-Painted Galvanized Steel Sheet/Coil with High Quality Yellow Color System 1

Pre-Painted Galvanized Steel Sheet/Coil with High Quality Yellow Color

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t.

Supply Capability:: 10000 m.t./month

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2.Main Features of the Pre-Painted Galvanized/Aluzinc Steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Pre-Painted Galvanized/Aluzinc Steel Coil Images

Pre-Painted Galvanized Steel Sheet/Coil with High Quality Yellow Color

4.Pre-Painted Galvanized/Aluzinc Steel Coil Specification

Standard: AISI, ASTM, BS, DIN, GB, JIS

Grade: DX51D, DX52D

Thickness: 0.17-2.0mm

Brand Name: KMRLON

Model Number: coil

Type: Steel Coil

Technique: Cold Rolled

Surface Treatment: Coated

Application: Boiler Plate

Special Use: High-strength Steel Plate

Width: 20-1250mm

Length: customized

commoidty: pre-painted galvanized steel coil

Thickness: 0.13-4.0mm

width: 20-1250mm

zinc coating: 40-180g/m2

printing thickness: top side: 20+/-5 microns, back side: 5-7 microns

color: all RAL color

surface treatment: color coated

coil weight: 4-7 tons

coil ID: 508/610mm

packaging: standard seaworthy packing

5.FAQ of Pre-Painted Galvanized/Aluzinc Steel Coil

1. What’s the application of this product?

Roof, roof structure, surface sheet of balcony, frame of window, etc.

2. What’s the brand of the paint?

We use the best brand of all of the word—AKZO.

3. How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

4. How to guarantee the quality of the products？

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.

5. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

Q: What are the benefits of using coated steel coils in roofing applications?: There are several benefits of using coated steel coils in roofing applications. Firstly, coated steel coils are highly durable and provide excellent resistance against corrosion. The coatings applied to the steel coils act as a barrier, protecting the underlying metal from exposure to moisture, chemicals, and harsh weather conditions. This ensures that the roofing system remains intact and functional for an extended period, reducing the need for frequent repairs or replacements. Secondly, coated steel coils offer superior strength and structural integrity. Steel is known for its high tensile strength, and when combined with the protective coating, it becomes even more resilient. This makes coated steel coils an ideal choice for roofing applications, as they can withstand heavy loads, extreme temperatures, and strong winds without compromising the integrity of the structure. Additionally, coated steel coils are lightweight, which makes them easier to handle and install. This not only saves time and effort during the roofing process but also reduces the overall weight of the structure, minimizing the stress on the building's foundation. Furthermore, coated steel coils are available in a variety of colors and finishes, allowing for greater design flexibility. Architects and homeowners can choose from a wide range of options to complement the overall aesthetics of the building. The coatings also provide enhanced UV resistance, preventing color fading and ensuring that the roofing system maintains its appearance over time. Lastly, using coated steel coils in roofing applications is an environmentally friendly choice. Steel is a highly recyclable material, and the coatings used on the coils can be formulated to be environmentally friendly as well. This helps reduce the carbon footprint associated with construction and promotes sustainability. In conclusion, the benefits of using coated steel coils in roofing applications include durability, strength, lightweight, design flexibility, and environmental sustainability. These advantages make coated steel coils a reliable and cost-effective choice for any roofing project.

Q: Measures to prevent cold rolling of packaged cold rolled steel coils? Who can give some professional opinions oh?: In order to prevent rusting in the process of storage or transportation of steel roll, steel mills generally take the following packing: inner gas antirust paper wrapped with tape wrapped in plastic film sealing, intermediate, involute cardboard seal lining, cardboard corner, with iron and steel outer package corner protector, strapping fixed. If the inner package seal, so the steel coil is sank into the water, will not rust out.

Q: How can I tell the wear resistance, strength, ect from the name of the steel?how could I tell the difference between 420 and 440 steel. what does the HC in 420 HC steel mean? what do the numbers and letters in s30v steel mean?: So what does all that mean in the real world of knives. 420 has very low carbon by blade standards, as such it is just junk steel. There are three grades of 440, A, B and C. The amount of carbon in A is about half of what C has. (carbon is what makes steel get hard). Iron is very much like a sponge in that it can absorb and hold different alloys. These alloys give the iron different attributes, and they can magnify each other. Like a sponge iron can only hold so much, for Chromium it is around 13%. At that point the steel becomes stainless. The drawback is a loss of strength. As a bladesmith my knives are generally 59 to 60 rch, 420 and 440 at its hardest is 59 but at that it is brittle so most makers draw it down to around 57. In my test a knife made of 420 couldn't make 5 slicing cuts through rope (most couldn't make one). 440 averaged between 5 and 10. Compared to the lowest grade of carbon steel I use (5160) which average between 25 to 30 on the same rope. I have tested many stainless blades and the rule always the same, the more chromium past 13% the weaker the blade and the less edge holding ability.

Q: What are the different methods of perforating steel coils?: Various techniques are employed to perforate steel coils, each possessing unique merits and applications. 1. Mechanical Punching: One frequently employed method for perforating steel coils is mechanical punching. This involves utilizing a mechanical press, punch, and die set to puncture holes in the coil. Customization of hole size and shape is achievable by designing the punch and die set accordingly. Mechanical punching is efficient and generates consistent results, producing high-quality holes. 2. Laser Cutting: For intricate designs or complex hole patterns, laser cutting is a sought-after technique to perforate steel coils. A powerful laser beam is employed to precisely and cleanly cut through the coil, creating holes. Hole size, shape, and spacing flexibility are offered by laser cutting, which can be computer-controlled for precise and repeatable outcomes. 3. CNC Plasma Cutting: This method leverages a high-velocity plasma jet to cut through the steel coil and create perforations. CNC technology guides the plasma cutter, ensuring precise and accurate hole patterns. CNC plasma cutting is ideal for thicker steel coils and can generate larger holes compared to laser cutting. 4. Waterjet Cutting: The use of a high-pressure jet of water mixed with an abrasive substance characterizes waterjet cutting for perforating steel coils. This technique allows versatility in terms of hole dimensions, shapes, and compatibility with different materials. Waterjet cutting is renowned for its capability to produce intricate and precise perforations without causing heat-affected zones or distortion. 5. Electrical Discharge Machining (EDM): EDM is an approach that employs electrical discharges to erode the material, forming perforations in the steel coil. It involves the use of a conductive electrode and dielectric fluid to generate controlled sparks, removing material and creating holes. EDM is suitable for creating complex shapes and patterns, particularly on hard materials. The choice of method depends on various factors, including desired hole size and shape, steel coil thickness and type, required precision, and production volume. Each method has its own strengths and limitations, necessitating the selection of the most appropriate technique based on the specific requirements of the perforated steel coils.

Q: I want to know the special characters or the advantages of the corton steel. In what cases it is recommended to use?Thank you.: *It is Corten steel.Grade A B. *Weathering steel, best-known under the trademark COR-TEN steel, is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. United States Steel Corporation (USS) holds the registered trademark on the name COR-TEN. Although USS sold its discrete plate business to International Steel Group (now Arcelor-Mittal) in 2003, it still sells COR-TEN branded material in strip-mill plate and sheet forms. In some areas it may be known without the hyphen as Corten steel. The original COR-TEN received the standard designation A242 (COR-TEN A) from the ASTM International standards group. Newer ASTM grades are A588 (COR-TEN B) and A606 for thin sheet. All alloys are in common production and use. It is a weather-resistant steel which is used in containers and hot flue gas line. The American Corten A Steel has a composition of C, 0.12; Si, 0.5; Cu, 0.5; Cr, 0.8; P, 0.1 and Mn, 0.5%. Although the tensile strength is less than 494 MPa the yield is in the region of 371 MPa. The combination of copper and phosphorus also increases the resistance to atmospheric corrosion which is important when thinner plates are used. The original steel A suffers a decrease in yield strength and notch ductility in thickness over 25 mm, to overcome which Corten B was developed-C 0.14; P 0.04; Mn 1.1; Cr 0.5; Cu 0.4; V 0.1; Bol Al 0.02. *COR-TEN A applies to plates up to 12.5mm in thickness, COR-TEN B applies to plates up to 50mm in thickness. *It has been used in bridge and other large structural applications such as the New River Gorge Bridge, the newer span of the Newburgh-Beacon Bridge, and the creation of the Australian Centre for Contemporary Art (ACCA). It is very widely used in marine transportation, in the construction of shipping containers.

Q: What are the surface treatments for steel coils?: There are several surface treatments available for steel coils, each serving a specific purpose and offering unique benefits. Some common surface treatments for steel coils include: 1. Hot-dip galvanizing: This process involves immersing the steel coil in a bath of molten zinc, resulting in a protective layer of zinc coating on the surface. Galvanizing provides excellent corrosion resistance, making the steel coil suitable for outdoor applications in harsh environments. 2. Electro-galvanizing: This method uses an electrolytic process to deposit a thin layer of zinc onto the steel coil's surface. Electro-galvanizing provides good corrosion resistance, but the coating is generally thinner compared to hot-dip galvanizing. 3. Pre-painting or pre-coating: Steel coils can be coated with paints or other coatings before being formed into final products. This surface treatment enhances the coil's aesthetic appeal while offering protection against corrosion, weathering, and other environmental factors. 4. Pickling and oiling: This surface treatment involves removing oxides and scale from the steel coil's surface by immersing it in an acid solution. After pickling, the coil is typically coated with oil to prevent rust formation during storage and transportation. 5. Phosphating: Phosphating is a chemical conversion coating process that forms a layer of phosphate on the steel coil's surface. This treatment improves the adhesion of subsequent coatings, such as paints or primers, while also providing some corrosion resistance. 6. Organic coatings: Steel coils can be coated with various organic materials, such as epoxy, polyester, or polyurethane, to enhance their corrosion resistance and aesthetic appearance. These coatings offer a wide range of colors, textures, and finishes, making them suitable for diverse applications. It is worth noting that the choice of surface treatment for steel coils depends on the intended application, environmental conditions, and desired appearance. Manufacturers and end-users must carefully consider these factors to select the most appropriate surface treatment for their specific needs.

Q: What are the different methods of forming steel coils?: There are several methods used for forming steel coils, depending on the specific requirements and applications. These methods include hot rolling, cold rolling, and continuous casting. Hot rolling is the most common method used for forming steel coils. It involves heating the steel billet or ingot to high temperatures and then passing it between a series of rollers to reduce its thickness and shape it into a coil. This process is typically performed above the recrystallization temperature of the steel, which allows for better shaping and improved mechanical properties. Cold rolling, on the other hand, is a process that is performed at or near room temperature. It involves passing the steel through a series of rollers to reduce its thickness and shape it into a coil. Cold rolling is often employed to produce steel coils with precise dimensions and excellent surface finish. It can also increase the strength and hardness of the steel. Continuous casting is another method used for forming steel coils. It involves pouring molten steel into a continuous casting machine, where it is solidified into a strand. The strand is then continuously fed into a series of rollers, which shape it into a coil. Continuous casting offers several advantages, such as improved efficiency, reduced energy consumption, and better control over the steel's composition and quality. In addition to these primary methods, there are various secondary processes involved in forming steel coils. These include pickling, annealing, and coating. Pickling removes any rust or scale from the surface of the steel, ensuring a clean and smooth finish. Annealing involves heating the steel to a specific temperature and then slowly cooling it, which helps to improve its ductility and reduce internal stresses. Coating is often applied to steel coils to provide corrosion resistance or enhance its aesthetic appeal. In summary, the different methods of forming steel coils include hot rolling, cold rolling, and continuous casting. Each method offers unique advantages and is chosen based on the specific requirements of the steel product. Additionally, secondary processes such as pickling, annealing, and coating are often employed to further enhance the quality and performance of the steel coils.

Q: I'm kind of confused as to how the difference between a stainless steel and blued steel firearm is sometimes only $20 or so. Isn't stainless steel fairly more expensive to manufacture than plain carbon steel? Are some stainless steel firearms simply stainless steel finished with carbon steel underneath?: I don't know that stainless can be laminated to steel very easily. Stainless is a little more expensive. The problem comes in that stainless is much harder to machine that normal gun steel. With laminated steel, you would still have the problem of machining the stainless. Occasionally firearms are nickle plated or barrels are chrome lined.

Q: How are steel coils inspected for coil set using deflection measurement?: Steel coils are inspected for coil set using deflection measurement by subjecting the coil to a controlled force and measuring the amount of deflection or bending that occurs. This is typically done by placing the coil on a support system and applying a known load or weight onto the center of the coil. The deflection or displacement of the coil is then measured using sensors or devices that can accurately detect any changes in the coil's shape. This measurement helps to identify any potential coil set, which is a condition where the coil retains a curved or bent shape even when unrolled.

Q: How are steel coils used in the production of automotive frames?: Steel coils are used in the production of automotive frames by being unwound and fed into a machine that shapes and welds the steel into the desired frame structure. The high-strength and durability of steel make it an ideal material for automotive frames, providing structural integrity and safety to the vehicle.

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