HIGH QUALITY OF GALVANIZED STEEL COIL FROM CHINA

HIGH QUALITY OF GALVANIZED STEEL COIL FROM CHINA System 1

HIGH QUALITY OF GALVANIZED STEEL COIL FROM CHINA

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 5000 m.t./month

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Quick Details

Standard: ASTM, GB, JIS
Grade: SGCH
Thickness: 0.13mm-0.8mm
Place of Origin: Tianjin, China (Mainland)
Brand Name: ZG
Model Number: ZG
Type: Steel Coil
Technique: Cold Rolled
Surface Treatment: Galvanized
Width: 750mm-1250
Length: 0

Packaging & Delivery

Packaging Details:	seaworthy standard export packing .CARDBOARD SLEEVES, STEEL SHEET WRAPPED OUTSID, FIXED BY STEEL BELT
Delivery Detail:	Within 30-40 days upon receit of you prepaid money

Specifications

1,SGCH, regular spangle
2,the second largest supplier in Guan County
3.below 0.16mm is our main products.
4.JIS G3302
5.ASTM

Galvanized steel sheet /coil features:
1. Zinc coating :30-150g/m2( as required)
2. Thickness:0.13-0.8mm
3. Width:750-1250mm(750-762mm,900-925mm, 1000, 1200-1250mm the most common)
4. Coil id:508mm
5. Coil weight: 3-5MT or more (as required)
6. Surface:regular/mini/big spangle, skin pass, chromated, unoiled, dry etc.
7. Tolerance:Thickness tolerance: +/- 0.02mm;
Width tolerance: +/-5mm;
Zinc tolerance:+/-10gsm.
8.Payment condition: Prepay 30%, pay the rest before shipment, via TT
8. Application: As to excellent cold bending molded manufacturablity, good decoration effect, strong anti-corrosion ability, galvanized steel coils and are also pollution-free and easily recycled. Accordingly, they can be used as final products and basic plates of color coated steel coils and widely applied in construction, home appliances, decoration, ect.

HIGH QUALITY OF GALVANIZED STEEL COIL FROM CHINA

Q: How are steel coils used in the production of steel fasteners?: Steel coils are used in the production of steel fasteners by being uncoiled and then shaped into various forms such as screws, nuts, bolts, and washers. The coils provide a continuous and efficient supply of high-quality steel material, ensuring consistent and reliable production of fasteners.

Q: How are steel coils used in the production of steel doors?: Steel coils are used in the production of steel doors as they provide the raw material required for the door manufacturing process. These coils are unwound and then cut into specific lengths to form the door panels. The steel coils are further processed through various steps, such as rolling, pressing, and shaping, to give the door its desired structure and design. Thus, steel coils serve as the foundation for creating sturdy and durable steel doors.

Q: What is the weight of a steel coil?: The weight of a steel coil can vary depending on its size and thickness. Generally, a steel coil can weigh anywhere from a few hundred kilograms to several tonnes.

Q: How are steel coils inspected for coil set?: Steel coils are inspected for coil set using a variety of methods and equipment. Coil set refers to the curvature or shape of the coil, which can impact its performance and usability in various applications. One common method of inspecting steel coils for coil set is through visual inspection. Experienced operators or inspectors carefully examine the coils for any visible deformities or irregularities in their shape. This can be done by unrolling a portion of the coil and checking for any signs of buckling, twisting, or unevenness. Visual inspection is a straightforward and cost-effective way to identify obvious coil set issues. In addition to visual inspection, more advanced techniques are also used to accurately measure and quantify coil set. One such method is the use of a straight edge or a template. The straight edge is placed along the length or width of the unrolled portion of the coil, and any gaps or deviations from the straight edge indicate the presence of coil set. This method provides a more precise measurement of the extent and severity of the coil set. Another common technique is the use of specialized tools such as a non-contact laser measurement system. This system utilizes lasers to project a line on the surface of the coil and measures the distance between the line and the coil. Any variations in this distance indicate the presence of coil set. This method is highly accurate and provides detailed data about the coil's shape and curvature. Other methods may include using mechanical devices such as rollers or tensioners to unroll and measure the coil's shape. These devices apply controlled pressure to the coil to straighten it out, and any resistance or deviations encountered during the process are indications of coil set. Overall, the inspection of steel coils for coil set involves a combination of visual examination and precise measurement techniques. These methods help identify and quantify any deformities or irregularities in the coil's shape, allowing manufacturers and customers to make informed decisions about the usability and quality of the steel coils.

Q: Can steel coils be coated with decorative designs?: Yes, steel coils can be coated with decorative designs. This is commonly achieved through various coating techniques like painting, powder coating, or laminating, which can add aesthetic appeal to the steel coils while enhancing their overall appearance and functionality.

Q: I want to make an object out of stainless steel. Initially, I had planned to get it cut out of stainless steel sheet but several of the edges need to be rounded and I think it would be much cheaper to get it made of cast iron formed in a mold.Yet, it must be stainless steel. Can stainless steel be formed in a mold like iron can ... i.e. poured in liquid form into a mold and harden into shiny stainless steel?Would a regular foundry do this or do I need something special?Thanks.: You have 2 options. Sand casting or investment casting. Stainless steel can be cast with either of these methods. In either case a model or pattern will have to be created. For sand casting the pattern is all that is needed to go to casting. For investment casting the pattern is used to make a wax casting, which is then coated with the investment. The wax is burned out and the metal is then poured into the cavity. If you are making just 1 or 2 pieces you can have waxes machined. This saves the intermediate step Depending on the size machining may still be your best option. Especially if you want just 1 part.

Q: What are the common surface defects found in steel coils?: There are several common surface defects that can be found in steel coils. One of the most common defects is rust or corrosion. This occurs when moisture comes into contact with the steel surface, causing it to oxidize and form rust. Another common defect is scratches or abrasions, which can occur during the handling or transportation of the coils. These can range from minor surface scratches to deeper gouges that can affect the structural integrity of the steel. In addition, there can be surface roughness or unevenness, which can be caused by improper rolling or cooling processes during manufacturing. This can result in an inconsistent surface texture that may impact the appearance and performance of the steel. Another defect is scale, which is a layer of oxide that forms on the surface of the steel during the manufacturing process. This can give the steel a rough and uneven appearance. Finally, there can be oil or grease stains on the surface of the steel, which can occur during the manufacturing or handling process. These stains can affect the adhesion of paints or coatings applied to the steel. Overall, these common surface defects in steel coils can impact the quality, appearance, and performance of the steel, and may require remedial actions such as cleaning, grinding, or recoating to resolve.

Q: How are steel coils inspected for color consistency using colorimetry?: Colorimetry is a method used to inspect steel coils for color consistency. This involves quantifying and measuring colors using specialized instruments like spectrophotometers or colorimeters. These instruments measure the hue, saturation, and brightness of the steel coil's color. A colorimeter is typically used to inspect steel coils for color consistency. This device emits light onto the surface of the coil and measures the amount of light reflected back. The reflected light is then analyzed and compared to a known standard color to identify any deviations. To measure color, the colorimeter breaks down the reflected light into different wavelengths and quantifies the intensity of each wavelength. This data is then converted into numerical values that represent the color of the steel coil. These numerical values can be compared to a predefined color standard to determine if the coil's color falls within an acceptable range. To ensure accurate and consistent color measurement, colorimetry relies on standardized color spaces like CIE L*a*b* or CIE RGB. These color spaces define specific ranges of colors. By using these standardized color spaces, colorimeters can provide objective and reliable measurements of color consistency. Color consistency is particularly important for industries like automotive or appliance manufacturing, where the appearance of the final product is crucial. By inspecting the color of steel coils using colorimetry, manufacturers can ensure that the final products have a consistent and visually appealing appearance. In conclusion, colorimetry is an effective method for inspecting steel coils for color consistency. By using specialized instruments and standardized color spaces, manufacturers can accurately measure and compare the color of steel coils to predefined standards, ensuring that the final products meet the desired color specifications.

Q: What is the process for uncoiling and recoiling steel coils?: The process for uncoiling and recoiling steel coils involves various steps. Firstly, the steel coil is securely placed on a mandrel or a coil car. Next, the coil is unfastened or cut to release the bands holding it together. Then, a suitable uncoiling machine is used to gradually unwind the coil, ensuring it is done in a controlled manner to prevent damage or accidents. Once the desired length of steel is unwound, it can be cut or sheared to the required size. To recoil the steel, it is fed through a recoiling machine that winds it back onto a new core or mandrel. Proper tension is applied during this process to ensure a tightly wound coil. Finally, the recoiled steel coil is secured with bands or straps for transportation or storage purposes.

Q: What is the average lead time for receiving replacement steel coils?: The average lead time for receiving replacement steel coils can vary depending on various factors such as the supplier, location, and specific requirements. It is recommended to consult with the supplier or manufacturer directly to get an accurate estimate of the average lead time for receiving replacement steel coils.

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