Best Prepainted Galvanized steel Coil in China

Best Prepainted Galvanized steel Coil in China System 1

Best Prepainted Galvanized steel Coil in China

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 23 m.t.

Supply Capability:: 32423 m.t./month

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1.Structure of Prepainted Galvanized steel Coil ：

With Gi as base metal,after pretreatmet (degrease and chemical treatment) and liquid dope with several Layers of color,then after firing and cooling,finally the plate steel is called pre-painted galvanized steel ( PPGI) .Pre-painted galvanized steel is good capable of decoration ,molding,corrosion resistance

2.Main Features of Prepainted Galvanized steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Prepainted Galvanized steel Coil Images

Best Prepainted Galvanized steel Coil in China

4.Prepainted Galvanized steel Coil Specification

Standard:ASTM, GB,JIS,JIS G3302 ASTM 755 EN10169

Grade: DX51D CGCC CS

Thickness: 0.13mm~3.0mm,

Width: 1250,600-1250mm

Coil weight:3-12 MT

Coil ID:508/610mm

Chemical composition:

0.150

0.476

11.231

12.50

0.900

0.039

0.010

5.FAQ of Prepainted Galvanized steel Coi

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

1.How do you control your quality

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 we will receive the goods ？

After receiving your deposit or workable lc ,our normal shipment date is 15-20days,and it takes around 28 days to reach your port of destination. But is up to different destination

3. what is your moq

Normally our moq is 25per size ,but it is up to different size

Q:i have a sword and some knives that have this grade steel. so is it a high grade or low grade? and how can i tell the differance between a high grade and a low grade?: For throwing knives, 440 isn’t necessarily a bad choice. Does it list whether it is 440c or 440b? That matters somewhat. The advantages of 440 Stainless is that it’s relatively hard (for a stainless), it resists rust significantly, and it’s not so hard that it would shatter or break. On the down side 440 is notorious for not taking or holding an edge, but for a throwing knife, that’s probably not much of an issue. If you’re looking for something to train with, you’re fine here. It’s plenty of steel enough to stick in wood or other targets. Odds are it won't bend if you slam it into some wood. If it lands on concrete, eh, it's going to scratch and all that jazz, and it might hurt the tip if it hits first, but as has been said, you can use a file or grinder to get the tip back.

Q:What are the different coil slitting methods used for steel coils?: There are three main coil slitting methods used for steel coils: rotary shear slitting, loop slitting, and oscillating slitting. Rotary shear slitting involves using rotating knives to cut the steel coil into narrower strips. Loop slitting is a process where the coil is looped through a series of rolls, and the desired width is achieved by adjusting the tension in the loop. Oscillating slitting is another method where the steel coil is passed through a set of oscillating blades, resulting in precise and high-speed slitting. These methods offer various advantages and are chosen based on the specific requirements of the steel coil slitting process.

Q:steel structure: Disadvantages Of Steel

Q:should I shoot Herters .308 steel cased ammo in my Remington 7400.and why shouldn't I?: I shouldn't have an R-25, however probabilities are that when you use metal cased ammo in it you are going to sometimes handle stuck instances. That's the rate you pay for the cheap ammo. As a rule when a case sticks without problems tapping the butt firmly on the ground then pulling the charging handle will dislodge and eject the case. It can pay to invariably have a cleaning rod with you, if the above repair does not work, you push the case out with the rod.

Q:How are steel coils coated or painted?: Steel coils are typically coated or painted using a process known as coil coating. This involves a series of steps including cleaning, pretreating, applying primer, and applying the final topcoat. The coils are first cleaned to remove any dirt or contaminants. They are then pretreated to enhance adhesion and corrosion resistance. After that, a primer is applied to provide a base layer for the paint. Finally, the desired topcoat is applied using various methods such as roll coating, spray coating, or electrostatic coating.

Q:How are steel coils cleaned before use?: Steel coils are cleaned before use through a process known as pickling. Pickling is a chemical treatment that helps remove any impurities, scale, rust, and other contaminants from the surface of the steel coils. The initial step involves the steel coils being immersed in an acid bath, typically a mixture of hydrochloric acid and sulfuric acid. This acid solution helps dissolve any rust, scale, and other surface impurities. The duration of the immersion depends on the extent of contamination and the desired cleanliness level. After the pickling process, the coils are thoroughly rinsed with water to remove the acid solution and any remaining residue. This step is crucial to prevent further corrosion or chemical reactions. Once the rinsing is complete, the coils are often subjected to a drying process to remove any remaining moisture. This can be done through air drying, using high-pressure air blowers, or by passing the coils through heated chambers. After the cleaning process, the steel coils are now ready for use in various applications such as manufacturing, construction, or any other industry that requires high-quality steel products. The pickling process ensures that the coils have a clean, smooth, and corrosion-resistant surface, allowing them to perform effectively and meet the desired specifications.

Q:What are the different types of steel coil handling devices?: There are several types of steel coil handling devices, including coil lifters, coil grabs, coil tongs, coil hooks, and coil transfer cars.

Q:What are the common defects found in steel coils?: Some common defects found in steel coils include surface defects such as scratches, pits, or dents, as well as edge defects like burrs or cracks. Other defects can include coil set or crossbow, which refers to the shape of the coil being out of alignment or having a curved shape. Additionally, defects such as oil or rust stains, laminations, or variations in thickness can also be found in steel coils.

Q:How are steel coils inspected for yield strength using tensile testing?: Tensile testing is the method used to inspect the yield strength of steel coils. This involves subjecting a sample of the coil to controlled tension until it reaches its breaking point. Through this test, various mechanical properties of the steel, including yield strength, can be determined. To conduct the tensile testing for yield strength inspection, a small strip of the coil is cut and prepared. The strip is then placed in a machine specifically designed for tensile testing. This machine consists of two grips that securely hold the strip at opposite ends. Subsequently, the machine applies a steadily increasing force to the strip, causing it to elongate until it eventually breaks. Throughout the test, the machine measures the force applied and the elongation of the strip. The yield strength is determined by identifying the point on the stress-strain curve where the material begins to undergo plastic deformation, meaning it exhibits permanent deformation without any increase in load. Typically, the yield strength is reported as the stress required to cause a specific amount of plastic deformation, such as 0.2% or 0.5%. This value represents the maximum stress that the steel can endure without experiencing permanent deformation. By performing tensile testing on a sample of the steel coil, it becomes possible to ascertain its yield strength. This information is vital in ensuring the quality and dependability of the steel coil, as it indicates the maximum stress it can tolerate before permanent deformation occurs. Furthermore, this testing method allows for the comprehensive evaluation of other mechanical properties, including ultimate tensile strength, elongation, and modulus of elasticity, thus providing a thorough understanding of the steel's performance characteristics.

Q:How are steel coils transported and stored?: Steel coils are typically transported using specialized trailers or railcars, ensuring secure and stable transportation. They are usually stored in warehouses or outdoor yards, stacked in neat rows using specialized equipment like coil racks or cradles. These storage methods help maximize space efficiency and prevent damage to the coils.

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