Galvanized steel coil for roofing sheet Dx51d z100

Galvanized steel coil for roofing sheet Dx51d z100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 35687 m.t./month

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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

Standard and Grade :

Hot-dip galvanized steel coils
	ASTM A653M-06a	EN10327:2004/ 10326:2004	JISG 3302-2010	AS-NZS 4534-2006
Commercial quality	CS	DX51D+Z	SGCC	G1+Z
Structure steel	SS GRADE 230	S220GD+Z	SGC340	G250+Z
	SS GRADE 255	S250GD+Z	SGC400	G330+Z
	SS GRADE 275	S280GD+Z	SGC440	G350+Z
	SS GRADE 340	S320GD+Z	SGC490	G450+Z
	SS GRADE550	S350GD+Z	SGC570	G550+Z
		S550GD+Z		G550+Z

Galvanized steel coil for roofing sheet Dx51d z100

FAQ

Q: How do you guarantee the quality of your product?

A: Every process will be checked by responsible QC which insures every product's quality.

Q: How much is your delivery time?

A: Normally within 30 days of receipt of LC original or prepayment, but mostly according to the specific requirements or the quantity

Q: I need sample, could you support?

A: We can supply you with the sample for free, but the delivery charges will be covered by our customers. For avoiding the misunderstanding, it is appreciated if you can provide the International Express Account for Freight Collect. Also you can have a visit to us, welcome to CNBM!

Certificate:

CNBM International is highly recognized by its business partners and clients all over the world and has obtained rapid development under the spirit of win-win. We will carry on the mutual beneficial, innovative and revolutionary trading structure as we did before, create value for our employees, share holders and clients and benefit the whole society in our future development

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Q:What are the different methods of laminating steel coils?: There exist multiple techniques for laminating steel coils, each possessing its own advantages and applications. The prominent techniques encompass hot rolling, cold rolling, and continuous annealing. Hot rolling involves heating the steel above its recrystallization temperature and subsequently passing it through a sequence of rollers to generate thin sheets or coils. This method is frequently employed for the mass production of steel with a uniform thickness and surface finish. Structural applications such as construction and automotive manufacturing commonly utilize hot rolled steel coils. In contrast, cold rolling entails passing the steel coil through a set of rollers at room temperature. This process not only reduces the thickness of the steel but also enhances its surface finish and mechanical properties. Industries requiring high precision and quality, such as appliance manufacturing, electrical equipment, and automotive components, typically employ cold rolled steel coils. Continuous annealing represents an alternative approach to laminating steel coils. It involves heating the steel coil to a specific temperature and gradually cooling it in a controlled environment. This procedure aids in alleviating internal stresses and enhancing the mechanical properties of the steel, such as strength and ductility. Continuous annealing is frequently utilized to produce high-quality steel coils for applications necessitating superior surface finish and formability, like automotive body panels and household appliances. Additional less prevalent methods of laminating steel coils comprise electro-galvanizing and hot-dip galvanizing. Electro-galvanizing encompasses coating the steel with a zinc layer through an electroplating process, while hot-dip galvanizing entails immersing the steel coil in molten zinc. These techniques primarily serve corrosion protection purposes and are commonly employed in the construction industry, particularly for outdoor structures and infrastructure. To summarize, the various techniques for laminating steel coils encompass hot rolling, cold rolling, continuous annealing, electro-galvanizing, and hot-dip galvanizing. Each approach offers distinct advantages and is selected based on the specific requirements of the application.

Q:Can steel coils be stacked on top of each other?: Yes, steel coils can be stacked on top of each other.

Q:What dangers were there for the steel workers in Pittsburgh under Carnegie?: Same as other steel plants, getting crushed by falling steel, getting burned by hot metal etc

Q:What are the different methods of coil cutting for steel coils?: There are several methods of coil cutting for steel coils, each with its own advantages and suitability for different applications. Here are some of the common methods: 1. Slitting: Slitting is the most commonly used method for coil cutting. It involves passing the steel coil through a set of rotating circular blades that cut the coil into narrower strips. This method is suitable for producing narrow width strips with precise dimensions. 2. Shearing: Shearing is another method used for coil cutting, especially for thicker gauge coils. It involves using a straight blade to cut the coil along a straight line. Shearing is suitable for producing larger width strips and is often used for heavier gauge steel coils. 3. Laser Cutting: Laser cutting utilizes a high-powered laser beam to cut through the steel coil. This method offers a high degree of precision and can be used to cut complex shapes and patterns. Laser cutting is often used for specialized applications where accuracy and fine details are crucial. 4. Waterjet Cutting: Waterjet cutting involves using a high-pressure jet of water mixed with abrasive particles to cut through the steel coil. This method is versatile and can be used for cutting various materials, including steel. Waterjet cutting is suitable for producing clean and precise cuts without heat-affected zones. 5. Plasma Cutting: Plasma cutting utilizes a high-temperature plasma arc to melt through the steel coil. This method is efficient and can be used for cutting thick gauges of steel. Plasma cutting can achieve high cutting speeds, making it suitable for industrial applications. 6. Guillotine Cutting: Guillotine cutting involves using a guillotine-like mechanism to cut through the steel coil. The coil is placed on a table, and a blade descends vertically to cut through it. Guillotine cutting is suitable for producing straight and accurate cuts with minimal burrs. The choice of coil cutting method depends on various factors such as the desired width and thickness of the strips, required precision, production volume, and the specific application. It is important to consider these factors and consult with experts to determine the most suitable coil cutting method for a particular steel coil.

Q:Hi, does anyone know where i can find more about this topic ? fire resistant steels for structural applications. thanks: Gavin, the danger posed by steel columns and girders during a fire in a building, is not the danger of the steel melting but of the steel expanding and snapping the bolts that hold all of the steel together. Very high temperatures can be achieved in a building fire because the up-draft caused by the rising hot air, delivers a massive amount of oxygen to the burning carpet, paper and furniture. When a steel frame office tower burns, the heat expands the steel and snaps the bolts. This causes the building to fall-down and not necessarily, burn-down. I am too lazy to look-up the melting point of steel but it is not very high. That is one reason for the columns and girders in steel framed buildings, to be covered in asbestos (which is a fatally toxic material) or magnesium di-oxide.

Q:What is the process for uncoiling and recoiling steel coils?: The process for uncoiling and recoiling steel coils involves various steps. Firstly, the steel coil is securely placed on a mandrel or a coil car. Next, the coil is unfastened or cut to release the bands holding it together. Then, a suitable uncoiling machine is used to gradually unwind the coil, ensuring it is done in a controlled manner to prevent damage or accidents. Once the desired length of steel is unwound, it can be cut or sheared to the required size. To recoil the steel, it is fed through a recoiling machine that winds it back onto a new core or mandrel. Proper tension is applied during this process to ensure a tightly wound coil. Finally, the recoiled steel coil is secured with bands or straps for transportation or storage purposes.

Q:How are steel coils coated to prevent corrosion?: Steel coils are coated to prevent corrosion through a process called galvanization. In this process, the steel coils are submerged in a bath of molten zinc, creating a protective zinc coating on the surface. This zinc coating acts as a barrier, preventing oxygen and moisture from coming into contact with the steel, thus inhibiting corrosion.

Q:What is the role of steel coils in the production of industrial machinery?: Steel coils play a crucial role in the production of industrial machinery as they are used as raw material for manufacturing various components and parts. These coils are typically cut, shaped, and formed into desired shapes and sizes to create structural frames, panels, gears, shafts, and other vital elements of machinery. The high strength and durability of steel make it an ideal choice for withstanding heavy loads, vibrations, and harsh operating conditions, ensuring the reliability and longevity of industrial machinery.

Q:I want to replace the old refrigator within the next 6 months........ Is the trend to buy a stainless steel refrigerator? Some magazines and internet sites are pointing me that direction. What are the pro's and con's ? I like the color bisque, or cream-color as well, or better, than stainless steel. What would be the reasons to buy stainless steel...is it becoming the most popular color ?: It's not about color necessarily. Stainless steel is easier to clean and for the most part scratch resistant. It's easier to take care of.

Q:How are steel coils used in the manufacturing of construction cranes?: Steel coils are used in the manufacturing of construction cranes to provide structural strength and durability. These coils are typically shaped and welded to form the main framework of the crane, which supports heavy loads and ensures stability during operation. Additionally, the steel coils are used to fabricate various components such as the boom, jib, and counterweights, which contribute to the crane's lifting capacity and overall functionality.

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