Best Quality Cold Roll Zinc Glvanizing Steel Coil

Best Quality Cold Roll Zinc Glvanizing Steel Coil System 1

Best Quality Cold Roll Zinc Glvanizing Steel Coil System 2

Best Quality Cold Roll Zinc Glvanizing Steel Coil

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Loading Port:: Qingdao

Payment Terms:: TT or LC

Min Order Qty:: 23 m.t.

Supply Capability:: 23 m.t./month

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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

Best Quality Cold Roll Zinc Glvanizing Steel Coil

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: 0.1mm~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:

Commodity	Hot dip galvanized steel coil and sheet
Techinical Standard:	JIS 3302 / ASTM A653 / EN10143
Grade	DX51D / DX52D/ DX53D/ S250,280,320GD
Types:	Commercial / Drawing / Deep Drawing / Structural quality
Width	500/650/726/820/914/1000/1200/1219/1220/1250mm
Thickness	0.14-3.0mm (0.14-0.5mm is the most advantage thickness)
Type of coating:	galvanized
Zinc coating	Z30-275g/m2
Surface treament	chromed / skinpass/ oiled/slightly oiled/ dry/ anti-fingerprint
Surface structure:	zero spangle / minimized spangle / regular spangle/ big spangle
ID coil	508mm or 610mm
Coil weight	3-8 MT per coil
Package:	Properly packed for ocean freight exportation in 20''containers
Application:	Industrial panels, roofing and siding for painting
Price terms	FOB,CFR,CIF
Payment terms	30%TT in advance+70% TT or irrevocable 70%L/C at sight
delivery time	15-20 days after recepit of 30% TT
Remarks	Insurance is all risks
	MTC will be handed on with shipping documents
	We accept the third party certificatation test

5.FAQ of Hot-Dip Galvanized Steel Sheet

We have organized several common questions for our clients，may help you sincerely：

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.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.

3. 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:What is the average tensile strength of a steel coil?: The average tensile strength of a steel coil can vary depending on the specific grade and type of steel used. However, on average, steel coils tend to have tensile strengths ranging from 300 to 2,000 megapascals (MPa).

Q:I want to make a lap steel guitar in my wood tech class. can anyone give me a link to a video or site that has steps on how to build one.: Steel guitars have cables attached to foot pedals to change the sound. I don't know how this would work with the top resting on your lap.

Q:What is the AISI grade of mild steel that is the most magnetic? What magnetic steels are the cheapest and easiest to buy?: From what I understand, the best material for cores is not the most magnetic but the rather the one having less loss due to hysteresis,

Q:What are the common processing defects in steel coils?: Steel manufacturers must identify and rectify the following processing defects commonly found in steel coils: 1. Coil breaks: These occur when the steel strip breaks during the process of winding the coil. Improper tension control or material defects can cause these breaks. 2. Slivers: Thin, elongated steel pieces get trapped in the coil during the rolling process. Foreign materials, scale, or defects in the rolling mill can cause slivers. 3. Edge cracks: Cracks appearing along the edges of the coil are known as edge cracks. Improper edge trimming, material defects, or excessive rolling forces can cause these cracks. 4. Surface defects: Scratches, pits, or scars on the steel coil constitute surface defects. Handling issues, improper cleaning, or rolling mill defects can cause such defects. 5. Coil set: Coil set refers to the coil's tendency to retain a curvature even after it has been uncoiled. This can occur due to uneven cooling during the rolling process or improper tension control. 6. Oil spots: Stains or discolorations on the steel coil caused by residual oil or lubricants are known as oil spots. Inadequate cleaning or incorrect lubricant application can lead to oil spots. 7. Wavy edges: Irregularities or waves along the edges of the steel coil are referred to as wavy edges. Uneven rolling forces or improper edge trimming can cause these irregularities. 8. Lamination: Lamination defects occur when layers or sheets of steel are not properly bonded together. Material defects or improper rolling conditions can cause lamination defects. 9. Burr: A raised edge or roughness along the edge of the steel coil is called a burr. Improper trimming or cutting processes can cause burrs. 10. Non-uniform thickness: Non-uniform thickness refers to variations in the thickness of the steel coil. Uneven rolling forces, improper cooling, or material defects can cause non-uniform thickness. Identifying and addressing these processing defects is crucial for steel manufacturers to ensure the quality and reliability of their steel coils.

Q:I received a very nice set of stainless steel cookware as a wedding gift. While very pretty, Im finding them almost useless for cooking. Everything sticks, they're difficult to clean, and Im using my old non-stick pans instead. Should I simply leave the stainless out for decortive purposes, or are stainless steel pans better for some applications?: Why Use Stainless Steel Cookware

Q:What are the dimensions of steel coils used in the furniture industry?: The furniture industry utilizes steel coils of varying dimensions, which are determined by the specific application and requirements of the furniture manufacturer. Generally, these steel coils possess a thickness ranging from 0.20mm to 3.00mm and a width spanning from 600mm to 2000mm. The length of the coils may fluctuate, but it is typically within the range of 1000mm to 3000mm. These dimensions offer the necessary flexibility to shape and mold the steel coils into diverse furniture components like frames, springs, and structural supports.

Q:How are steel coils inspected for thickness?: Steel coils are inspected for thickness using various methods to ensure their quality and compliance with industry standards. One common method is using a non-contact laser measurement system. In this process, a laser beam is directed towards the surface of the steel coil, and the time it takes for the beam to reflect back is measured. By accurately calculating the time taken, the thickness of the steel coil can be determined. Another method involves using ultrasonic technology. Ultrasonic sensors are used to emit high-frequency sound waves that penetrate the coil. These sound waves bounce back differently depending on the thickness of the steel, allowing the sensors to measure the thickness accurately. Additionally, some manufacturers may opt for an eddy current testing method. This technique involves passing an alternating current through a coil, creating a magnetic field. The thickness of the steel coil affects the impedance of the coil, which can be measured. By analyzing the changes in impedance, the thickness of the steel coil can be evaluated. Furthermore, some companies employ a mechanical method called the caliper method. This method involves using a caliper gauge to physically measure the thickness of the steel coil by applying pressure to the coil and reading the measurement on the caliper. Regardless of the method used, it is crucial for steel coils to be inspected for thickness to ensure they meet the required specifications and provide the desired performance in various applications.

Q:How are steel coils tested for compliance with industry standards?: To ensure compliance with industry standards, steel coils undergo a series of rigorous quality control measures. These tests are conducted to verify that the coils meet necessary specifications and are suitable for various applications. Among the primary tests performed on steel coils is dimensional inspection. This entails measuring the thickness, width, and length of the coils to ensure they fall within specified tolerances. Any deviations from the required dimensions may indicate manufacturing defects or potential issues during fabrication. Another crucial test is visual inspection, where trained inspectors meticulously examine the coils for surface defects like scratches, dents, or cracks. Identifying and rectifying these defects is essential as they can impact the performance and durability of the steel coils before they are supplied to customers. Additionally, mechanical properties testing is carried out to assess the strength, elasticity, and toughness of the steel coils. This includes conducting tests for tensile strength, yield strength, and elongation measurements. These evaluations help determine if the coils are suitable for specific applications and if they meet the required performance standards. Furthermore, chemical composition analysis is performed to validate the elemental composition of the steel coils. This analysis is crucial as it ensures that the steel meets the required chemical requirements, including the presence of specific alloying elements. Deviations in composition can significantly affect the overall quality and performance of the coils. Corrosion resistance testing is also of great importance, particularly for coils used in environments with high humidity or exposure to corrosive substances. Coils are subjected to simulated real-world conditions, such as salt spray or humidity chambers, to evaluate their resistance to corrosion. Lastly, various non-destructive testing techniques, including ultrasonic testing and magnetic particle inspection, are employed to detect internal defects or discontinuities in the steel coils. These tests assist in identifying any hidden flaws that could compromise the structural integrity of the coils. In summary, steel coils undergo a comprehensive array of tests to ensure adherence to industry standards. By conducting these tests, manufacturers can guarantee that the coils meet the required specifications, thereby providing customers with high-quality products tailored to their specific needs.

Q:How are steel coils used in the manufacturing of seat structures?: Steel coils are commonly used in the manufacturing of seat structures as they provide strength and durability. These coils are typically shaped and molded into springs that are then integrated into the seat cushions and frames. The steel coils help to provide support and enhance the overall comfort of the seats by ensuring proper weight distribution and minimizing sagging over time.

Q:How are steel coils used in the manufacturing of agricultural silos?: Steel coils are used in the manufacturing of agricultural silos by being formed and shaped into corrugated sheets, which are then assembled into the walls of the silo. The strength and durability of the steel coils ensure that the silo can withstand the weight of the stored grains and withstand external pressures.

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