Galvanized Steel Products of Good Quality

Galvanized Steel Products of Good Quality System 1

Galvanized Steel Products of Good Quality

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 5000 m.t./month

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Hot-dip Zinc Coating Steel Building Roof Walls
1.Structure of Hot-Dip Galvanized Steel Sheet Description：

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.

2.Main Features of the Hot-Dip Galvanized Steel Sheet：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images:

Galvanized Steel Products of Good Quality

4.Hot-Dip Galvanized Steel Sheet Specification：

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Galvanized Steel Products of Good Quality

5.FAQ of Hot-Dip Galvanized Steel Sheet：

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

1.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.

2.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.

3. 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 15-30 days, but the shipment will depend on the vessel situation.

Q: What are the common methods of packaging steel coils for transportation?: There are several common methods of packaging steel coils for transportation. One widely used method is to use steel strapping or bands to secure the coils together. This method involves tightly wrapping the coils with steel bands and securing them with metal buckles or seals. The strapping helps to keep the coils in place and prevents them from shifting or rolling during transportation. Another common method is to use wooden pallets or skids to stack and transport the steel coils. The coils are placed on the pallets and secured with steel strapping or bands. This method provides stability and allows for easy handling and loading onto trucks or other transportation vehicles. Some steel coils are also packaged in wooden crates or boxes. These crates are typically made of strong and durable wood and are designed to protect the coils from external impacts or damage during transportation. The crates are often reinforced with steel bands or strapping to provide additional strength and stability. In addition to these methods, some steel coils are packaged in specialized containers or units. These containers are specifically designed to hold and secure steel coils for transportation. They often have built-in mechanisms or features that make loading and unloading the coils easier and safer. It is important to note that the specific method of packaging steel coils for transportation may vary depending on factors such as the size and weight of the coils, the mode of transportation, and any specific requirements or regulations in place.

Q: Can steel coils be coated with anti-microbial materials?: Yes, steel coils can be coated with anti-microbial materials to provide protection against the growth of bacteria and other microorganisms.

Q: What are the common defects in steel coils?: Some common defects in steel coils include surface defects like scratches, rust, and pits, as well as internal defects like cracks, laminations, and non-uniform thickness. Other defects may include coil set, which is a curvature in the coil, and edge wave, which is a distortion along the edges of the coil.

Q: What are the different methods of coil welding for steel coils?: There are several different methods of coil welding for steel coils, each with its own advantages and disadvantages. Here are some of the most commonly used methods: 1. Resistance Welding: This method involves passing an electric current through the coils to generate heat, which then fuses the two ends together. Resistance welding is a fast and efficient process that produces strong and reliable welds. It is commonly used in industries where high-speed production is required. 2. Arc Welding: Arc welding uses an electric arc between an electrode and the workpiece to create a weld. This method can be further divided into different processes, such as shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and flux-cored arc welding (FCAW). Arc welding provides good penetration and can be used on a wide range of steel coils. 3. Laser Welding: Laser welding utilizes a high-powered laser beam to melt and fuse the two ends of the coils together. This method offers precise control, high welding speeds, and minimal distortion. It is often used in applications where precision and aesthetics are crucial, such as the automotive and electronics industries. 4. Induction Welding: Induction welding involves heating the coils using electromagnetic induction. The heat generated melts the edges, which are then pressed together to form a weld. This method is particularly suitable for thin-gauge steel coils and provides good control over the welding process. 5. High-Frequency Welding: High-frequency welding utilizes high-frequency current to heat and weld the coils together. This method is commonly used for pipes and tubes and offers high production rates and good weld quality. 6. Friction Welding: Friction welding uses the heat generated by rubbing the two ends of the coils together to create a weld. This method is fast, reliable, and produces strong joints. It is often used in applications where high-strength welds are required, such as the automotive and aerospace industries. These are just a few of the different methods of coil welding for steel coils. The choice of method depends on factors such as the type and thickness of the steel, the required weld strength, production speed, and overall project requirements.

Q: What are the dimensions of steel coils used in the agricultural structure industry?: The dimensions of steel coils utilized in the agricultural structure sector may differ based on the particular application and requirements at hand. Nevertheless, standard dimensions for steel coils in this industry span from 0.5mm to 3mm in thickness and from 600mm to 1500mm in width. The length of the coils can also vary, but typically falls between 1000mm and 3000mm. These dimensions afford flexibility in constructing agricultural structures like barns, sheds, and storage facilities, all while ensuring ample strength and durability. It is worth noting that precise dimensions may vary depending on the manufacturer and the unique demands of the agricultural project.

Q: days. Use your knowledge of the corrosion of steel and aluminum to predict how they would look different after a week exposed to rainy weather. Explain your prediction.: I'd expect appearance of reddish dots or stains of rust on steel, while aluminium should stay virtually unchanged. Explanation: Both materials oxidize in natural environment because of atmospheric moist, but in very different ways. As for steel, oxidation begins as reddish dots of rust which grow and become stains. Oxidation then progresses in depth causing decay of material, compromising its strength and structural integrity.

Q: What are the applications of stainless steel coils?: Stainless steel coils have a wide range of applications due to their durability, corrosion resistance, and versatility. They are commonly used in industries such as automotive, construction, aerospace, and food processing. These coils are used for manufacturing parts, components, and equipment like kitchen appliances, automotive parts, building materials, surgical instruments, and storage tanks. Additionally, they are utilized in heating, ventilation, and air conditioning (HVAC) systems, as well as in electrical and electronic devices.

Q: What are the different coating options for steel coils?: Steel coils have multiple options for coating, each with its own purpose and benefits. Some commonly used coatings for steel coils include the following: 1. Galvanized Coating: Steel coils are immersed in molten zinc, resulting in a zinc layer on the surface. This coating offers excellent corrosion resistance and protects against rust. It is ideal for harsh environments and moisture exposure. 2. Galvannealed Coating: This coating combines galvanizing and annealing processes. After galvanizing, the steel coils are annealed to create a zinc-iron alloy layer. Galvannealed coating provides enhanced paintability, weldability, and corrosion resistance. 3. Aluminum-Zinc Alloy Coating: Also known as Galvalume, this coating involves applying an aluminum-zinc alloy to the steel coils. It offers excellent corrosion resistance and heat reflectivity, making it suitable for roofing, siding, and automotive parts. 4. Organic Coatings: These coatings are typically applied as a top layer over a base coat of galvanized or galvannealed coating. Examples include paints, lacquers, and powder coatings. Organic coatings provide additional protection against corrosion, UV rays, and abrasion while enhancing the aesthetics of the steel coils. 5. Chromate Conversion Coating: This coating is commonly used as a pre-treatment before applying organic coatings. It improves adhesion between the steel surface and the organic coating, ensuring better corrosion resistance. The choice of coating depends on factors such as the intended application, environmental conditions, desired appearance, and budget. Manufacturers and end-users should carefully consider these factors to select the most suitable coating option for their specific requirements.

Q: Not sure if stainless steel is actually sealable but what's the best way to clean a brushed stainless steel appliance to not get so many finger prints...etc. I have stainless steel wipes that I used on another appliance and they don't work so great.: Make a paste from Lemon Juice and salt, scrub gently, and then rinse with water. To clean a stainless steel surface, use mild detergent,or baking soda or vinegar diluted in water. Clean, then dry with a soft cloth. Most stainless steel has a grain; if you are using any kind of an abrasive on a stainless surface, always make sure you clean in the direction of the grain. The don'ts are: Don't use bleach. Don't use steel wool unless it is an absolute last resort. Some of the fine particles can lodge in the surface of the stainless and will eventually rust, giving the appearance that the stainless itself is rusting. Don't let the following food items (ketchup, mustard, mayonnaise, lemon juice, vinegar, salt, salad dressings) remain on your stainless surfaces for any length of time. If they sit on the stainless for more than a few minutes, they may bleach it out. You can actually rub out this white area with a very fine Scotchbrite pad. Make sure you are going along the grain lines and not at right angles to them.

Q: What is the tensile strength of a steel coil?: The tensile strength of a steel coil refers to the maximum amount of stress or force that the coil can withstand before breaking or undergoing permanent deformation. It is a measure of the coil's ability to resist stretching or pulling apart. The specific tensile strength of a steel coil can vary depending on the type and grade of steel used, as well as the manufacturing process and any additional treatments or coatings applied. Generally, steel coils have high tensile strength, typically ranging from 300 to 2,000 megapascals (MPa). The tensile strength is an important property to consider when determining the suitability of a steel coil for various applications, such as in construction, automotive, or manufacturing industries.

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