Hot-dip Zinc Coating Steel Coil -On sale China

Hot-dip Zinc Coating Steel Coil -On sale China System 1

Hot-dip Zinc Coating Steel Coil -On sale China System 2

Hot-dip Zinc Coating Steel Coil -On sale China System 3

Hot-dip Zinc Coating Steel Coil -On sale China

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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 Coil -On sale China
1.Structure of Hot-Dip Galvanized Steel 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.

2.Main Features of the Hot-Dip Galvanized ：

• Excellent process capability

• Smooth and flat surface

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

Hot-dip Zinc Coating Steel Coil -On sale China

4.Hot-Dip Galvanized Steel 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 :

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 used in the production of aerospace components?: Indeed, the utilization of steel coils is feasible for the manufacturing of aerospace components. Steel, being a robust and adaptable substance, possesses an outstanding ratio of strength to weight, rendering it appropriate for a multitude of purposes in the aerospace sector. The processing and manipulation of steel coils allow for the fulfillment of precise specifications, including the creation of intricate components, structural elements, and even utilization in aerospace engines. Moreover, the corrosion resistance characteristics and capability to endure extreme temperatures make steel a dependable selection for aerospace applications.

Q: Is it possible to have a 25 room Hotel building with Steel structure. Thay is instead of traditional RCC can we have a 25 room hotel constructed using steel construction? Is it economic and how much time will it take to construct the same? Appraximate area would be 5000sq.ft to 10000sqft.: Yes you can have a steel structure building, as if it is more economical than RCC, I think it is , and it is much faster in completion than RCC, For such area steel structure is less in time than the RCC by 30% to 40%, my experience could estimate 6months to 8 months duration for steel structure

Q: What are the common coil finishes available for steel coils?: Steel coils can be finished in various ways to serve different purposes and achieve different aesthetic appearances. Some popular coil finishes include: 1. Hot-dip galvanized: By immersing the steel coil in molten zinc, a protective layer is formed on its surface. This finish is ideal for outdoor applications like roofing, fencing, and automotive parts due to its excellent corrosion resistance. 2. Galvannealed: Achieved by annealing the hot-dip galvanized coil, this finish gives a matte gray appearance. Galvannealed coils have enhanced paint adhesion, making them suitable for subsequent painting or powder coating in applications like appliances and furniture. 3. Electro-galvanized: A thin layer of zinc is electroplated onto the surface of the steel coil in this process. Electro-galvanized finishes offer good corrosion resistance and are commonly used indoors, such as in electrical enclosures, HVAC systems, and automotive components. 4. Pre-painted or coated: These finishes involve applying a layer of paint or a coating system to the steel coil, improving its appearance and providing extra protection. Pre-painted coils are extensively used in construction, appliances, and automotive industries due to their aesthetic appeal and corrosion resistance. 5. Bare or mill finish: This refers to the untreated, raw steel coil without any additional coatings or finishes. Bare steel coils are commonly used in applications where corrosion resistance is not the main concern, such as structural components, pipes, and tubes. These are just a few examples of the many coil finishes available for steel coils, each offering unique properties and advantages depending on the intended use. Carefully considering the specific requirements of the application is important when choosing the most suitable coil finish.

Q: What are the common defects in steel coil surface finishes?: Common defects in steel coil surface finishes include scratches, pits, roll marks, stains, and unevenness. These defects can be caused by various factors such as improper handling, processing issues, or equipment malfunction. These surface defects affect the aesthetics and quality of the steel coil, making it unsuitable for certain applications or requiring additional processing to rectify the defects.

Q: What are the different methods of testing the mechanical properties of steel coils?: There are several methods available for testing the mechanical properties of steel coils. These methods are crucial for determining the strength, ductility, and overall quality of the steel. Some of the commonly used methods include: 1. Tensile testing: This method involves applying a tensile force to a steel coil until it fractures. The test measures the maximum stress a material can withstand before breaking, as well as its elongation and reduction in cross-sectional area. Tensile testing provides important information about the ultimate tensile strength, yield strength, and elongation of the steel coil. 2. Hardness testing: Hardness testing determines the resistance of a material to indentation or scratching. Numerous methods are available for measuring the hardness of steel coils, such as Brinell, Vickers, and Rockwell hardness tests. These tests provide an indication of the steel's ability to resist deformation and wear. 3. Bend testing: Bend testing involves subjecting a steel coil to a controlled bending force until it reaches a specified angle or until a crack appears. This test assesses the ductility and flexibility of the steel, as well as its resistance to cracking or fracture under bending stress. 4. Impact testing: Impact testing measures the ability of a steel coil to absorb energy when subjected to a sudden shock or impact. The most commonly used method is the Charpy impact test, where a notched specimen is struck by a pendulum hammer, and the energy absorbed during fracture is measured. This test evaluates the toughness and resistance to brittle fracture of the steel coil. 5. Fatigue testing: Fatigue testing involves subjecting a steel coil to repeated or cyclic loading to simulate the stresses it may encounter during its intended use. This test assesses the steel's resistance to fatigue failure and its ability to withstand repeated stress over an extended period. 6. Ultrasonic testing: Ultrasonic testing utilizes high-frequency sound waves to detect defects or flaws in the steel coil. This non-destructive testing method can identify internal or surface defects, such as cracks, voids, or inclusions, which may affect the mechanical properties of the steel. It is important to note that these testing methods are often performed in accordance with industry standards and specifications, such as ASTM (American Society for Testing and Materials) or ISO (International Organization for Standardization) standards, to ensure accurate and reliable results.

Q: Have spent two days making a specialized knife out of 304 stainless steel, after throwing into a log it bent slightly arghhhh. Is it worth continuing to finish it off or start all over again with different kind of steel if so which kind should i use.: Stainless Steel For Knife Making

Q: How are steel coils stored and transported?: Steel coils are typically stored in large warehouses or outdoor storage yards. They are stacked horizontally on top of each other, with wooden or steel supports placed between each coil to prevent damage. When it comes to transportation, steel coils are usually loaded onto flatbed trucks, railcars, or shipping containers. Specialized equipment such as coil racks or coil cradles may be used to secure and stabilize the coils during transport.

Q: How are steel coils used in the production of roofing panels?: Steel coils are used in the production of roofing panels by being fed through a machine that shapes and cuts the steel into the desired panel size and shape. The coils are unrolled and flattened, then passed through a series of rollers to form the corrugated or flat panel profile. This process ensures the panels have the strength and durability required for roofing applications.

Q: I'm getting my nose pierced, meaning that i have to keep the piercing in for a prolonged time. i've always had reactions when wearing sterling silver or fake earrings (i dont know what types of metal they were) after wearing it overnight. Will I get a reaction on my nose piercing if the stud is surgical steel?: Surgical Piercing

Q: How are steel coils inspected for weldability?: Steel coils are inspected for weldability through a series of comprehensive tests and examinations. The main objective of this inspection is to assess the quality and suitability of the steel coils for welding processes. Firstly, visual inspection is conducted to identify any visual defects or irregularities on the surface of the coils. This includes checking for surface roughness, cracks, scratches, or any other imperfections that may affect the weldability. Next, destructive testing methods such as tensile testing and impact testing are performed. Tensile testing measures the strength and ductility of the steel, ensuring it meets the required mechanical properties for welding. Impact testing evaluates the steel's resistance to brittle fracture, which is crucial in determining its weldability. Furthermore, non-destructive testing techniques such as ultrasonic testing (UT) and magnetic particle inspection (MPI) are employed to detect internal defects and discontinuities. UT uses high-frequency sound waves to identify any hidden flaws within the steel, while MPI utilizes magnetic particles to identify surface and near-surface defects. Additionally, chemical analysis is carried out to determine the steel's composition and ensure it meets the required specifications for welding. This analysis involves checking the levels of carbon, manganese, sulfur, and other elements that may affect the weldability and overall performance of the steel. Moreover, weldability testing is performed to evaluate the steel's response to welding processes. This involves conducting various welding trials using different techniques and parameters to determine the steel's behavior during welding, such as its susceptibility to cracking, distortion, or other welding-related issues. Overall, the inspection of steel coils for weldability is a multi-faceted process that combines visual, destructive, non-destructive, chemical, and weldability testing methods. By conducting these thorough inspections, manufacturers can ensure that the steel coils meet the required standards and are suitable for welding applications.

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