High Quality of Galvanized Steel Sheet of China

High Quality of Galvanized Steel Sheet of China System 1

High Quality of Galvanized Steel Sheet of China

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 5000 m.t./month

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1. Hot-Dip Galvanized Steel Coil Description：

Hot-dip galvanized steel coil 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 application.

2.Main Features of the Hot-Dip Galvanized Steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Coil Images

High Quality of Galvanized Steel Sheet of China

4.Hot-Dip Galvanized Steel Coil Specification

Standard: AISI, ASTM, BS, DIN, GB, JIS

Grade: SPCC, SPCD, Q195, DX51D

Thickness: 0.15-5.0mm

Model Number: coil

Type: Steel Coil

Technique: Cold Rolled

Surface Treatment: Galvanized

Application: Container Plate

Special Use: High-strength Steel Plate

Width: 600-1250mm

Length: depends

commodity: hot dipped galvanized steel coil

technique: cold rolled

thickness: 0.15-5.0mm

width: 600-1500mm

surface treatment: galvanized

zinc coating: 50-275g/m2

coil weight: 3-7 tons

coil ID: 508/610mm

spangle: zero spangle, regular spangle, small spangle, big spangle

payment term: by L/C or T/T

5.FAQ of Hot-Dip Galvanized Steel Coil

What’s the application of this product?

There are many applications for this product. For example, roofing, cladding, decking, tiles, sandwich walls, etc.

What’s the coating composition of Hot-Dip Galvanized Steel Coil?

The coating composition is 55% aluminium in weight ratio, 43.4% zinc, and 1.5% silicon, with excellent corrosion and heat resistance performance.

Q: How are steel coils inspected for surface quality?: To ensure that steel coils meet the required standards and are defect-free, a meticulous inspection process is carried out using various methods and technologies. The following steps are involved in inspecting the surface quality of steel coils: 1. Visual Inspection: Trained personnel visually examine the entire surface of the coils to detect any visible defects such as scratches, dents, or irregularities. This step allows for the identification of obvious issues through visual observation. 2. Magnetic Particle Inspection: This non-destructive testing method involves applying a magnetic field to the surface of the steel coil and then adding a magnetic particle solution. Any surface cracks or defects cause the magnetic particles to cluster, making them visible under appropriate lighting. This technique effectively detects surface cracks and abnormalities. 3. Eddy Current Testing: Electromagnetic induction is used in this inspection method to identify surface defects. An eddy current probe is moved over the surface of the steel coil, and any variations in the electrical current induced by the magnetic field are detected. This technique is especially useful for detecting surface cracks, pits, or corrosion. 4. Ultrasonic Testing: Ultrasonic waves are employed to inspect the surface of the steel coil for hidden defects like subsurface cracks or inclusions. High-frequency sound waves are transmitted into the material, and any changes in the reflected sound wave pattern indicate the presence of defects. Ultrasonic testing is highly reliable and can detect even the smallest defects within the steel coil. 5. Surface Roughness Measurement: Specialized equipment is used to measure the surface roughness of the steel coil. This measurement helps determine if the surface meets the required smoothness standards. The equipment scans the surface and provides detailed information about the roughness, allowing the inspector to ensure it falls within an acceptable range. In summary, the inspection of steel coils for surface quality involves a comprehensive process that combines visual examination with advanced testing methods such as magnetic particle inspection, eddy current testing, ultrasonic testing, and surface roughness measurement. These inspection techniques effectively identify and evaluate potential defects or surface irregularities, ensuring that the steel coils meet the necessary surface quality standards.

Q: What are the different types of steel coil packaging materials used during processing?: There are several types of steel coil packaging materials commonly used during processing, including but not limited to, steel strapping, plastic strapping, stretch film, shrink film, steel coil covers, and wooden crates.

Q: I bought this Brinks pad lock and it says boron steel on the lock. I was just wondering what exactly is boron steel and how hard/tough is it?: Boron steel is rather hard, it is by no means titanium, but certainly better than mild steel. However, as with all metals, hardness is inversely proportional to flexibility, meaning that a good solid whack with a sledge hammer could crack your lock.

Q: How are steel coils processed for different finishes?: Steel coils can be processed for different finishes through various methods. One common process is called coil coating, where the steel coil is cleaned, primed, coated, and cured to achieve a desired finish. This process includes removing any contaminants from the surface of the coil, applying a primer to enhance adhesion, and then coating it with a specific paint or coating material. The coated coil is then cured at high temperatures to ensure proper adhesion and durability. Another method for processing steel coils is through galvanization. In this process, the steel coil is coated with a layer of zinc to protect it from corrosion. This can be done through hot-dip galvanization, where the coil is immersed in a bath of molten zinc, or through electro-galvanization, where a thin layer of zinc is electroplated onto the coil. The galvanized finish provides excellent corrosion resistance and can be further processed to achieve different aesthetic finishes. Additionally, steel coils can be processed for different finishes through various surface treatments. This may involve processes such as pickling, where the coil is treated with an acid solution to remove scale and impurities, or mechanical treatments like brushing or grinding to achieve a desired texture. These surface treatments can be followed by applying a protective coating or paint to enhance the appearance and durability of the coil. Overall, the process of achieving different finishes on steel coils involves a combination of cleaning, coating, curing, and surface treatments. The choice of specific methods depends on the desired finish and the intended application of the steel coil.

Q: How are steel coils inspected for weldability using welding tests?: Steel coils can be inspected for weldability using a variety of welding tests. One common method is the bend test, where a section of the coil is cut and bent to evaluate the quality of the weld. This test helps determine if the weld is brittle or contains any defects that could compromise its integrity. Additionally, the guided bend test is performed to assess the ability of the weld to withstand bending without cracking or breaking. Another technique used is the macro etch test, where a sample is prepared by cutting a cross-section of the coil and then etching it with a chemical solution. This test helps reveal any imperfections or inconsistencies in the weld, such as porosity, slag inclusions, or lack of fusion. Furthermore, the hardness test is conducted to measure the hardness of the weld. This is important as excessive hardness can lead to cracking or brittleness, while insufficient hardness may result in weld failure under certain conditions. Additionally, non-destructive testing methods like ultrasonic testing, magnetic particle inspection, or radiographic examination can also be employed to detect any internal defects, such as cracks or voids, in the steel coil welds without damaging the material. These welding tests are crucial in ensuring the quality and weldability of steel coils before they are used in various applications. By conducting thorough inspections, any potential issues can be identified and addressed, ensuring that the steel coils meet the required standards for weldability and structural integrity.

Q: I believe steel is stronger but it steel lighter than iron too?: Steel is iron, with other things added that strengthen it and/or make it less rust liable. So, in general, steel is stronger than iron. In so far as the density, that depends on the steel alloy. Some are higher than iron, some lower. Remember there are hundreds of different steel alloys. edit: but the density is still close to that of iron. density steel 7750 to 8050 kg/m? density iron 7870 kg/m?

Q: I have samurai sword that is a replica of the kill bill sword. It says on the blade stainless steel, what can i use to shine and protect blade. It had and still does a wax.like coating on the blade sine i received it. Thx for ur help: i like how you asked this in the Card Games section.

Q: Can steel coils be stretched?: No, steel coils cannot be stretched as steel is a rigid material and does not have the ability to be stretched like other elastic materials.

Q: What are the different methods of blanking steel coils?: There are several methods used for blanking steel coils, which are: 1. Shearing: This method involves cutting the steel coil into the desired size and shape using a shear or a set of shears. Shearing is a common method used for blanking steel coils as it is a fast and cost-effective process. It is suitable for cutting thin to medium-thickness steel coils. 2. Laser cutting: Laser cutting is a precise and efficient method that uses a high-powered laser beam to cut through the steel coil. It is suitable for cutting complex shapes and thick steel coils. Laser cutting provides clean and accurate cuts, making it a preferred method for high-quality blanking. 3. Waterjet cutting: Waterjet cutting uses a high-pressure stream of water mixed with an abrasive material to cut through the steel coil. This method is versatile and can cut through various materials, including steel, without generating heat. Waterjet cutting is suitable for cutting thick steel coils and is often used for intricate shapes and designs. 4. Stamping: Stamping is a method that involves pressing a die into the steel coil to cut out the desired shape. This process is commonly used for high-volume production as it can rapidly cut multiple pieces at once. Stamping is suitable for cutting simple shapes and is often combined with other processes like shearing or laser cutting for more complex shapes. 5. Plasma cutting: Plasma cutting uses a high-velocity jet of ionized gas to cut through the steel coil. It is suitable for cutting thick steel coils and can handle a wide range of materials. Plasma cutting is known for its speed and versatility, making it a popular method for blanking steel coils. These methods of blanking steel coils provide different benefits depending on the requirements of the project, such as speed, precision, complexity of shapes, and material thickness. The choice of method depends on factors like cost, production volume, desired quality, and turnaround time.

Q: Steel is strong in both tension and compression. Concrete is only strong in compression, and is very fragile in tension. Plus, concrete is heavy--a huge drawback in, say, a bridge deck. And its fairly expensive. And it hides the condition of the steel embedded within it. So what does it bring to the table? Why use it at all?: Pre stressed concrete is held in compression by the steel cables within.

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