Galvanized prime hot rolled steel sheet in coil S220GD+Z

Galvanized prime hot rolled steel sheet in coil S220GD+Z

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 34568 m.t./month

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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 prime hot rolled steel sheet in coil S220GD+Z

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:How are steel coils used in the production of shipbuilding materials?: Steel coils are used in the production of shipbuilding materials as they are typically cut and shaped into plates, sheets, or beams that are then used to construct various components of a ship's structure such as the hull, decks, and bulkheads. The coils provide a reliable and durable base material that can withstand the harsh marine environment and ensure the structural integrity and strength of the ship.

Q:How are steel coils different from steel sheets?: Steel coils and steel sheets are both made from the same material, steel, but they differ in terms of shape and size. Steel coils are long, continuous rolls of steel that are typically wound up into a coil shape. They are generally used for industrial purposes and can be processed further to create various products like pipes, tubes, or automotive parts. On the other hand, steel sheets are flat pieces of steel that are available in various thicknesses. They are commonly used in construction, manufacturing, and fabrication processes where a flat surface is required, such as roofing, cladding, or panels.

Q:What is the purpose of coating steel coils?: The purpose of coating steel coils is to provide protection against corrosion, enhance durability, and improve the aesthetic appearance of the steel. Coatings create a barrier between the steel surface and the environment, preventing moisture, chemicals, and other corrosive elements from reaching the metal. Additionally, coatings can offer additional benefits such as heat resistance, UV protection, and improved paint adhesion, making the steel coils suitable for a wide range of applications in various industries.

Q:What are the key players in the steel coil manufacturing industry?: The key players in the steel coil manufacturing industry are large steel companies such as ArcelorMittal, Nippon Steel Corporation, POSCO, Baosteel Group, and Tata Steel. These companies have a significant global presence and dominate the market due to their extensive production capabilities, advanced technologies, and strong distribution networks. Additionally, there are several other regional and local players that cater to specific markets and niche segments within the industry.

Q:Can steel coils be stored in a corrosive environment?: No, steel coils should not be stored in a corrosive environment as it can cause damage and corrosion to the coils, reducing their quality and durability over time.

Q:What is the minimum thickness of a steel coil?: The minimum thickness of a steel coil can vary depending on the specific grade and type of steel being used, as well as the manufacturing process. However, generally speaking, the minimum thickness of a steel coil is typically around 0.001 inches (0.0254 millimeters). It is important to note that this value is a general guideline and can vary based on the specific requirements and standards set by the industry or application.

Q:A steel rod AISI 1040 has the ultimate tensile strength Sut of 113 kpsi. Determine the rotating bending specimen's endurance limit S'e at 10 to the 6th cycles.: A rule of thumb for endurance limits of steel with Sut 200 ksi is that S'e = 0.504 x Sut, thus for your case that would be 113 x .504 = 56.95 ksi (endurance limit is defined as fatigue life greater than 10^6 cycles)

Q:Can steel coils be embossed?: Yes, steel coils can be embossed. Embossing is a process that involves creating raised or indented patterns on a surface, and it can be done on various materials including steel coils. This technique is often used to enhance the aesthetic appeal or provide functional properties to the steel coils.

Q:What are the challenges in coil recoiling?: Coil recoiling, which is also known as coil winding, brings about a range of challenges that depend on the specific application and requirements. Some of the common hurdles encountered in coil recoiling are as follows: 1. Precision and accuracy: Achieving precise and accurate winding is vital for optimal coil performance. It is crucial to maintain consistent tension throughout the winding process, ensure proper alignment, and control the speed in order to prevent variations in the electrical properties of the coil. 2. Wire management: Managing the wire during the recoiling process can be difficult. The wire may be fragile, prone to tangling, or have specific handling requirements, such as being sensitive to magnetic or thermal influences. Employing proper wire management techniques, such as tension control, wire guide systems, and spooling mechanisms, is necessary to prevent wire damage and ensure uniform winding. 3. Space limitations: In many cases, coils need to fit within specific space constraints. Designing and winding coils to fit compact spaces can be challenging, particularly when considering the required number of turns, wire size, insulation, and any additional components or structures that may need to be incorporated. 4. Material selection: The selection of the appropriate wire and insulation material is crucial for optimal coil performance and durability. Factors such as electrical conductivity, thermal properties, mechanical strength, and chemical resistance must be taken into account to ensure that the coil can withstand the operating conditions and environmental factors it will encounter. 5. Heat dissipation: Coils often generate heat during operation, especially in high-power applications. Efficient heat dissipation is crucial to prevent overheating and ensure the longevity of the coil. Techniques such as designing the coil with proper ventilation, utilizing cooling mechanisms, or incorporating heat sinks are employed to address this challenge. 6. Quality control: Ensuring consistent quality in coil recoiling can be challenging due to factors such as variations in wire properties, operator skill, equipment calibration, and environmental conditions. Robust quality control measures, such as conducting regular inspections, performing electrical tests, and monitoring process parameters, need to be implemented to maintain consistent coil performance. In summary, coil recoiling demands meticulous attention, precision, and adherence to specific requirements in order to overcome the challenges and produce high-quality coils that meet the desired performance criteria.

Q:Can steel and/or stainless steel turn rusty ?: from wikipedia: In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable, is defined as a steel alloy with a minimum of 10.5% to 11% chromium content by mass. Stainless steel does not corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments. It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and resistance to corrosion are required. Stainless steel differs from carbon steel by the amount of chromium present. Unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film (the rust) is active and accelerates corrosion by forming more iron oxide, and due to the dissimilar size of the iron and iron oxide molecules (iron oxide is larger) these tend to flake and fall away. Stainless steels contain sufficient chromium to form a passive film of chromium oxide, which prevents further surface corrosion and blocks corrosion from spreading into the metal's internal structure, and due to the similar size of the steel and oxide molecules they bond very strongly and remain attached to the surface.

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