Chinese Best Hot-dip Zinc Coating Steel Building Roof Walls JIS G3302

Chinese Best Hot-dip Zinc Coating Steel Building Roof Walls JIS G3302 System 1

Chinese Best Hot-dip Zinc Coating Steel Building Roof Walls JIS G3302

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m

Supply Capability:: 10000 m/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

Chinese Best Hot-dip Zinc Coating Steel Building Roof Walls JIS G3302

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: 0.18mm~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:

Processability	Yield strength	Tensile strength	Elongation %	180°cold-bending
Common PV	-	270-500	-	d=0,intact,no zinc removal
Mechanical interlocking JY	-	270-500	-	d=0,intact,no zinc removal
Structure JG	>=240	>=370	>=18	d=0,intact,no zinc removal
Deep drawn SC	-	270-380	>=30	d=0,intact,no zinc removal
EDDQ SC	-	270-380	>=30	d=0,intact,no zinc removal

5.FAQ of Hot-Dip Galvanized Steel Sheet

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

1.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.

2. 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 handling defects in steel coils?: During the transportation and storage of steel coils, various handling defects can arise, impacting the coils' quality and integrity and potentially leading to future problems. Some of the most frequently encountered handling defects in steel coils are as follows: 1. Damage to the edges: This defect occurs when the coil's edges are bumped or scraped, resulting in dents, scratches, or tears. Such damage weakens the coil's structural integrity, making it more susceptible to further harm. 2. Core damage: The core of a steel coil plays a crucial role in maintaining its shape and stability. However, mishandling can crush or deform the core, leading to coil collapse or distortion. 3. Coil slippage: Inadequate strapping or stacking of coils can cause them to shift or slide during transportation. This can result in coil slippage, causing misalignment, damage to the outer layers, or even complete coil failure. 4. Abrasion: Steel coils can experience abrasion if they come into contact with rough surfaces or other objects during handling. This can lead to the wearing off of the coil's protective coating or paint, exposing the steel to potential corrosion. 5. Moisture damage: Steel coils are susceptible to moisture damage, particularly if they are not properly sealed or protected. Exposure to moisture can lead to rust formation, compromising the coil's structural integrity and overall quality. 6. Overloading: Exceeding weight limits and improper stacking of steel coils in trucks or storage areas can exert excessive pressure and stress on the coils, resulting in deformation, bending, or even coil collapse. Adhering to weight limits and proper stacking procedures is crucial to prevent overloading. 7. Improper lifting: When lifting steel coils, it is important to use suitable lifting equipment and techniques. Failure to do so can cause coil damage, such as distortion or bending, and can also pose risks of injury to workers. To mitigate these handling defects, it is vital to adhere to proper handling and storage procedures for steel coils. This includes using appropriate lifting equipment, securing coils during transportation, avoiding overloading, and ensuring adequate protection against moisture and abrasion. Regular inspections and maintenance are also important for identifying and addressing any potential defects or issues before they worsen.

Q:Hi all.I'm working on a project which requires about 3 steel pipes at 25mm in diametre and about a foot each in length.The qualities I need with the steel is that:1. I need it to be easy enough to weld together2. I need to be able to drill holes through them with a basic drill (I could buy different bits, that's fine)3. I need the steel to be able to take short intense repeated bursts of strain through said holes4. The lighter the steel the better5. Could I please have a ballpark figure for price. I can't imagine such a small amount of steel would cost too muchThank you in advance for your replyRegardsSean: Call the steel pipe company or check their website

Q:How are steel coils used in the manufacturing of automotive hoods?: Steel coils are used in the manufacturing of automotive hoods as the primary raw material. These coils are processed and formed into the desired shape and size to create the hood. The steel's strength and durability make it an ideal choice for automotive hoods, providing protection and structural integrity to the vehicle.

Q:What are the different methods of engraving steel coils?: There are several different methods of engraving steel coils, each with its own advantages and applications. Some of the most common methods include: 1. Chemical Etching: This is a process that involves applying a chemical solution to the surface of the steel coil, which selectively removes the metal to create the desired design. Chemical etching is highly precise and can produce intricate patterns and fine details. It is commonly used for decorative purposes, such as creating logos or patterns on steel coils. 2. Laser Engraving: Laser engraving uses a high-powered laser beam to remove the top layer of the steel coil, creating a permanent mark. This method offers high precision and allows for the engraving of complex designs, logos, or text. Laser engraving is frequently used for branding purposes or to add identification marks to steel coils. 3. Mechanical Engraving: Mechanical engraving involves the use of a cutting tool or a diamond-tipped stylus to physically remove the metal from the steel coil's surface. This method is known for its durability and versatility, as it can create deep and long-lasting engravings. Mechanical engraving is often used for industrial applications, such as adding serial numbers, part codes, or other identification marks to steel coils. 4. Electrochemical Etching: Electrochemical etching, also known as electrolytic etching, utilizes an electric current to selectively dissolve the metal surface of the steel coil. This technique is commonly used for marking and branding purposes, as it can produce high-quality, permanent engravings. Electrochemical etching is often employed in industries where precision and durability are essential, such as aerospace or automotive manufacturing. 5. Inkjet Printing: While not strictly engraving, inkjet printing is a method that can be used to add patterns or designs onto steel coils. This process involves using specialized inks and a digital printing system to apply the desired design directly onto the surface of the coil. Inkjet printing is versatile, cost-effective, and allows for high-resolution prints, making it suitable for various applications, including decorative or branding purposes. In conclusion, the different methods of engraving steel coils offer a range of options for creating permanent markings, logos, or patterns. The choice of method depends on factors such as the desired level of precision, durability requirements, and the specific application for the steel coil.

Q:I'm pretty sure that this topic has been beaten to death by now. But, I still can't get a definite answer. With stainless steel, you get better corrosion resistance, and you will hold and edge longer. With carbon steel, you will hold a sharper edge, and you could forge a knife blade longer than 2 ft without breakage. I'm personally a fan of stainless steel ( the 440 grade stuff ), just because it seems to hold up to use and abuse better in the long run. HOWEVER, I have NEVER had a factory made knife break on me. I don't think that they would try to sell you a knife that didn't do what it was meant to do, at least to a reasonable degree. (I work for a living, and can't afford a custom $600 knife.) What do you think? Is this a pointless topic? Will there ever be a winner?: You didn't say WHICH type of stainless steel, which will make all the difference. There are $2 stainless steel knives and $200 stainless steel knives. The best stainless knife steels will rival the best high carbon steels when it comes to edge-holding properties. These days MOST of the best knives on the market are made from premium stainless steels because of the lower maintenance, but a high carbon steel knife has classic appeal and great edge-holding properties.

Q:How are steel coils used in the production of packaging machinery?: Steel coils are used in the production of packaging machinery as they serve as the raw material for manufacturing various components of the machinery, such as frames, supports, and structural elements. The steel coils are processed through cutting, bending, and welding to create the necessary parts, ensuring durability and stability in the packaging machinery's construction.

Q:What are the different methods of pickling steel coils?: There are several methods of pickling steel coils, including acid pickling, electrolytic pickling, and mechanical pickling. Acid pickling involves immersing the coils in a bath of acid, typically hydrochloric or sulfuric acid, to remove any scale or impurities on the surface. Electrolytic pickling uses an electric current to dissolve the scale and impurities from the steel coils. Mechanical pickling involves using abrasive materials or mechanical brushes to physically remove the scale and impurities from the surface of the coils.

Q:Or is it a coating that is applied? If so what types of steel? Or what types of coatings?: No, usually they are just coated or galvanized. To make a steel that is truly more corrosion resistant raises it's cost quite markedly, where as coatings are pretty cheap. Almost all structural steel is just A36 mild steel (like 0.1% carbon, 0.05% Mn, and not much else). There are higher grades of structural steel, and bridges are made with truly more corrosion resistant carbon steels, but for a house it's just not the case.

Q:How are steel coils coated?: Steel coils are coated through a process called coil coating, where the steel is cleaned, treated, and then coated with a protective layer using techniques such as roll coating or spray coating.

Q:Can someone help me...i have a diagram and were supposed to calculate the steel tonnage needed for the pictre. Can someone tell me step by step what i need to do (ex:find area of ...): Find the volume of steel and then multiply that by the density of the steel.

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