Hot-dip Zinc Coating Steel Building Roof Walls JISG3302

Hot-dip Zinc Coating Steel Building Roof Walls JISG3302 System 1

Hot-dip Zinc Coating Steel Building Roof Walls JISG3302

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 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

Hot-dip Zinc Coating Steel Building Roof Walls JISG3302

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: Can steel coils be coated with QR codes?: Yes, steel coils can be coated with QR codes. QR codes can be printed or etched onto a variety of surfaces, including steel. This allows for easy tracking, identification, and access to information about the steel coils during various stages of production, transportation, and storage.

Q: What are the different types of steel coil surface defects?: There are several different types of steel coil surface defects that can occur during the manufacturing or handling process. Some of the common types include: 1. Rust: Rust is a common surface defect that occurs when the steel coil is exposed to moisture or oxygen. It appears as a reddish-brown discoloration on the surface of the coil. 2. Scratches: Scratches are superficial marks that can occur during handling or transportation of the steel coil. They can vary in depth and severity, ranging from light surface scratches to deep gouges. 3. Stains: Stains are another type of surface defect that can occur due to exposure to chemicals or other substances. They can appear as discolored patches on the surface of the coil, and may be difficult to remove. 4. Roll marks: Roll marks are impressions or indentations that can occur during the rolling process. They are caused by uneven pressure or misalignment of the rolls, and can appear as lines or patterns on the surface of the coil. 5. Edge wave: Edge wave is a defect that occurs when the edges of the coil are not perfectly flat. It can cause the edges to appear wavy or uneven, and may affect the overall appearance and performance of the coil. 6. Oil spots: Oil spots are surface defects that occur when oil or lubricants used in the manufacturing process are not properly removed. They can appear as dark spots or patches on the surface of the coil, and may affect the adhesion of coatings or paints. 7. Pitting: Pitting is a defect that appears as small, shallow depressions or pits on the surface of the coil. It can be caused by factors such as corrosion, uneven cooling, or impurities in the steel. 8. Holes: Holes are more severe surface defects that can occur due to a variety of reasons, such as corrosion, mechanical damage, or manufacturing errors. They can range in size and can significantly affect the structural integrity of the coil. It is important to address these surface defects promptly to ensure the quality and performance of the steel coil. Regular inspections, proper handling, and appropriate surface treatments can help minimize the occurrence of these defects.

Q: How are steel coils used in the manufacturing of household appliances?: Steel coils are commonly used in the manufacturing of household appliances as they serve as the primary material for constructing various components. These coils are shaped, cut, and processed to create parts such as frames, panels, and supports. Additionally, steel coils are used for creating durable and robust structures that provide stability and longevity to appliances like refrigerators, washing machines, and stoves.

Q: What are the common certifications required for steel coils?: The common certifications required for steel coils include ISO 9001 (Quality Management System), ISO 14001 (Environmental Management System), and OHSAS 18001 (Occupational Health and Safety Management System). Additionally, certifications like ASTM (American Society for Testing and Materials) and EN (European Norm) standards are important for ensuring the quality and compliance of steel coils.

Q: Can steel coils be used in the food processing industry?: No, steel coils are not typically used in the food processing industry due to the risk of contamination and potential health hazards. Food-grade materials such as stainless steel are preferred for their hygienic properties and ability to withstand high sanitary standards.

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 common coil diameter and weight combinations available for steel coils?: The common coil diameter and weight combinations available for steel coils vary depending on the specific requirements of the industry or application. However, some commonly available coil diameter ranges include 24 inches to 72 inches, while weight combinations can range from 3,000 pounds to 50,000 pounds or more. These dimensions can be further customized based on the needs of the customer and the capabilities of the steel manufacturer.

Q: How are steel coils measured for thickness?: Steel coils are measured for thickness using a variety of methods. One common method is using a micrometer, which is a precision measuring instrument that accurately determines the thickness of the coil. The micrometer is gently pressed against the surface of the coil and the measurement is taken. Another method involves using a thickness gauge, which is a handheld device that can quickly and accurately measure the thickness of the steel coil. The gauge is placed on the coil's surface and the thickness is displayed on a digital screen. In some cases, ultrasonic thickness testing is used to measure the thickness of steel coils. This method involves using ultrasonic waves that are emitted from a handheld device. The waves travel through the coil and bounce back to the device, providing an accurate measurement of the thickness. Regardless of the method used, it is important to ensure that the measurements are taken at multiple points across the coil to account for any variations in thickness. This ensures that accurate and reliable measurements are obtained.

Q: How are steel coils used in the production of metal buildings?: Steel coils are an essential component in the production of metal buildings as they are used to create the structural framework and outer cladding. These coils are unrolled and cut into sheets, which are then shaped and formed into various building components such as beams, columns, and panels. The strength and durability of steel make it an ideal material for constructing metal buildings, ensuring they are capable of withstanding harsh weather conditions and providing long-lasting structures.

Q: What are the safety regulations for steel coil production facilities?: Safety regulations for steel coil production facilities vary depending on the specific country or region, but there are some common safety measures that are typically implemented in these facilities. One key safety regulation is the proper training and education of employees. All workers in steel coil production facilities should be trained on the potential hazards they may encounter, as well as the proper safety procedures to follow. This includes training on handling heavy machinery, operating cranes or forklifts, and understanding the risks associated with working in a high-temperature environment. Another important safety regulation is the maintenance and inspection of equipment. Regular inspections of machinery and equipment should be conducted to ensure they are in proper working condition and do not pose any safety risks. Furthermore, maintenance procedures should be implemented to address any issues or malfunctions promptly. Fire safety is also a crucial aspect of safety regulations in steel coil production facilities. Fire prevention measures such as the installation of fire alarms, sprinkler systems, and fire extinguishers should be in place. Regular fire drills should also be conducted to ensure that all employees are aware of the evacuation procedures and can respond quickly and effectively in case of a fire emergency. Personal protective equipment (PPE) is another vital safety requirement in steel coil production facilities. Employees should be provided with appropriate PPE such as safety glasses, helmets, gloves, and steel-toed boots to protect them from potential hazards such as falling objects, sharp edges, and high temperatures. Additionally, safety regulations often require the implementation of safety barriers and guards around machinery and equipment to prevent accidents and injuries. This includes safety gates, railings, and protective covers to restrict access to hazardous areas and prevent unauthorized entry. Regular safety audits and inspections should be conducted by relevant authorities or safety professionals to ensure compliance with safety regulations. Companies should also encourage a culture of safety by promoting open communication about safety concerns, providing safety training and refresher courses, and rewarding employees for their adherence to safety protocols. It is important to note that safety regulations may vary from one jurisdiction to another, and it is always advisable to consult the specific regulations applicable in the country or region where the steel coil production facility is located.

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