Hot-dip Zinc Coating Steel Building Roof Sheets in Coil Prime Quality

Hot-dip Zinc Coating Steel Building Roof Sheets in Coil Prime Quality System 1

Hot-dip Zinc Coating Steel Building Roof Sheets in Coil Prime Quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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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

Hot-dip Zinc Coating Steel Building Roof Sheets in Coil Prime 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:

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 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 is the difference between hot dipped galvanized and electro galvanized steel sheets?: Galvanized steel sheets can be categorized into two types: hot dipped galvanized and electro galvanized. These two types differ in how they are applied and the resulting characteristics of the coating. Hot dipped galvanized steel sheets are made by immersing the steel into a bath of molten zinc. This process creates a thick and durable coating that effectively prevents corrosion. The zinc completely covers the surface and edges of the steel, ensuring comprehensive protection against rust and other forms of degradation. The thickness of the coating can be adjusted based on the specific application and level of protection required. On the other hand, electro galvanized steel sheets are produced through electroplating the steel with a thin layer of zinc. First, the steel is cleaned and treated with an acid solution to remove impurities and enhance adhesion. Then, it is submerged in a solution of zinc electrolyte, and an electric current is applied to the bath. This causes the zinc ions to bond with the surface of the steel. As a result, the coating formed is much thinner compared to hot dipped galvanized steel. Due to the thinner coating, electro galvanized steel sheets offer less resistance to corrosion compared to their hot dipped counterparts. They are more suitable for indoor applications or environments with less exposure to harsh conditions. However, electro galvanized steel sheets have their own advantages, such as a smoother and more uniform appearance. This makes them a popular choice for applications where aesthetics play a significant role, such as automotive parts or appliances. In conclusion, the primary distinction between hot dipped galvanized and electro galvanized steel sheets lies in their application method and the resulting thickness of the coating. Hot dipped galvanized steel sheets have a thicker and more durable coating, providing superior protection against corrosion. On the other hand, electro galvanized steel sheets have a thinner coating, making them more suitable for indoor applications and offering a smoother appearance.

Q:The difference between steel edge sealing strip and steel plate putty water stop belt: The steel sealing strip is made of pure steel plate and can be divided into galvanized steel sheet, ordinary steel plate and stainless steel water stop belt.The steel plate putty water stop belt is covered with butyl rubber. The main material is a kind of rubber and plastic material with good aging resistance. It has a strong self adhesion, and it does not run in summer. Low temperature in winter, no brittle, and has excellent water, acid and alkali resistance and aging resistance, long service life, the product itself non-toxic, good environment. In order to withstand certain bending and pressure. There are 0.4 or 0.6mm steel plates in the center. The steel plate putty water stopping belt can provide reliable waterproof and anti-seepage function to the building joint. Steel plate putty water stop series products include various specifications and types of products, and can produce various types of steel sheet, putty, water stop belt according to user requirements, to meet the actual needs of the project.

Q:How do steel sheets compare to aluminum sheets in terms of strength?: In general, steel sheets exhibit greater strength than aluminum sheets. Steel possesses a reputation for its remarkable tensile strength, enabling it to endure substantial forces without distorting or fracturing. Conversely, aluminum sheets demonstrate lower tensile strength and are inclined to bend or distort when subjected to heavy loads. Nevertheless, it is important to acknowledge that aluminum sheets can still possess sufficient strength for numerous applications, particularly when taking into account their lower density when compared to steel. Moreover, aluminum sheets possess the advantage of being lighter in weight, resistant to corrosion, and exhibiting superior thermal conductivity in relation to steel sheets. Consequently, the decision between steel and aluminum sheets hinges upon the specific requirements of the project, taking into consideration factors such as strength, weight, resistance to corrosion, and thermal properties.

Q:What is the yield strength of steel sheets?: The yield strength of steel sheets can vary depending on the specific grade and thickness, but typically ranges between 250 and 400 megapascals (MPa).

Q:Can steel sheets be used for interior wall applications?: Yes, steel sheets can be used for interior wall applications. Steel sheets are strong, durable, and fire-resistant, making them suitable for use in various indoor settings. They can be installed as decorative panels or as a base material for wall cladding systems. Additionally, steel sheets offer benefits such as easy maintenance, excellent sound insulation, and the ability to withstand moisture and humidity.

Q:What is the process of manufacturing steel sheets?: The process of manufacturing steel sheets involves several steps. First, iron ore is extracted from the ground and processed to remove impurities. This iron ore is then smelted in a blast furnace, along with coke and limestone, to produce molten iron. The molten iron is further refined in a basic oxygen furnace or an electric arc furnace to remove any remaining impurities and adjust the desired composition. Once the iron has been refined, it is converted into steel by adding alloying elements such as carbon, manganese, and other elements as required. The molten steel is then cast into large slabs or ingots. These slabs are reheated and passed through rolling mills to reduce their thickness and shape them into long, flat sheets. The sheets are then cooled, coated or treated as necessary, and cut into desired sizes before being packaged and shipped for various applications.

Q:Can steel sheets be used for noise barriers?: Yes, steel sheets can be used for noise barriers. Steel is a durable and robust material that can effectively block or reduce the transmission of sound. It has high density and mass, which helps to absorb and reflect the sound waves, preventing them from passing through the barrier. Steel sheets can be specifically designed and manufactured for noise reduction purposes, with features such as perforations or acoustic insulation materials to enhance their effectiveness. Additionally, steel sheets can be coated or painted to improve their resistance to weather conditions and corrosion. Overall, steel sheets are a viable option for constructing noise barriers, especially in areas with high levels of noise pollution.

Q:How do steel sheets compare to aluminum sheets in terms of strength?: Steel sheets are generally stronger than aluminum sheets in terms of strength. Steel has a higher tensile strength and can withstand higher loads and impacts compared to aluminum. However, aluminum sheets are lighter and have better resistance to corrosion, making them suitable for certain applications where weight and corrosion resistance are important factors.

Q:How do you store steel sheets to prevent damage?: To prevent damage to steel sheets, it is important to store them in a dry and well-ventilated area to avoid moisture buildup. Sheets should be stored horizontally on a flat surface, ideally on pallets or racks, to prevent bending or warping. It is crucial to keep them away from direct contact with the ground or any other surfaces that could cause scratches or dents. Additionally, using separators or interleaving materials between each sheet can help prevent surface damage.

Q:What are the different shapes available for steel sheets?: There are several different shapes available for steel sheets, depending on the specific requirements and applications. Some of the commonly used shapes include: 1. Flat sheets: These are the most basic and versatile shape of steel sheets. They have a flat surface and are available in various sizes and thicknesses. Flat sheets are commonly used in construction, automotive, and manufacturing industries. 2. Coils: Steel sheets can also be available in coils, which are continuous lengths of sheet metal wound into a roll. Coils are often used for large-scale production processes, such as in the manufacturing of appliances, automobiles, and HVAC systems. 3. Perforated sheets: These sheets have evenly spaced holes or perforations throughout their surface. Perforated sheets are used in applications where ventilation, filtration, or aesthetic appeal is required, such as in architectural designs, signage, and industrial machinery. 4. Corrugated sheets: These sheets have a series of parallel ridges and grooves, which provide strength and rigidity. Corrugated sheets are commonly used for roofing and siding applications, as they offer excellent durability and weather resistance. 5. Expanded metal sheets: These sheets are manufactured by cutting and stretching a flat sheet, creating a pattern of diamond-shaped openings. Expanded metal sheets are used in applications that require ventilation, security, or filtration, such as fences, walkways, and machine guards. 6. Diamond plate sheets: Also known as tread plate or checker plate, these sheets have a pattern of raised diamonds or lines on their surface. Diamond plate sheets are commonly used for flooring, stairs, ramps, and truck bed liners, as they provide traction and slip resistance. These are just a few examples of the different shapes available for steel sheets. The choice of shape depends on the specific requirements of the project, including strength, durability, aesthetics, and functionality.

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