Prepainted Steel Coil for Building Material

Prepainted Steel Coil for Building Material

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Basic Info.

Model NO.:0.42*1180mm, RAL9010

Surface Treatment:Coated

Technique:Cold Rolled

Standard:ASTM, JIS, GB, DIN, BS

Steel Grade:ASTM A755m, En10169

Thickness 0.20~1.10mm:Coil Width 600~1250mm

Export Markets:Global

Additional Info.

Trademark:HZZN

Packing:STANDARD EXPORT PACKAGE, IN 20′ CONTAINER

Standard:0.42*1180mm, RAL9010

Origin:China

HS Code:7210701000

Production Capacity:10, 000 Tons/Year

Product Description

Description of Prepainted steel coils:
1) Standard: JIS G3312 CGCC & CGLCC, equivalent to ASTM A755M, EN10169
2) Grade: CGCC and CGLCC
3) Hardness of material: Both soft and full hard are available
4) Surface finish: With or without protect film covered

5) Thickness range: 0.14-1.20mm
6) Width range and General width: Width range 600-1250mm, general width: 914mm, 1000mm, 1220mm and 1250mm.
7) Shape: Both sheet and coil are available
8) Zinc coating: 60-275G/M2, both sides
9) Paint thickness: Top 5 um + (10-20) um modified polyester, any RAL color code. We use Beckers paint for producing

Standard	JIS G3312 CGCC ASTM A755M EN10169
Valid thickness	0.20~1.20mm
Coil width	600~1250mm
Coil ID	508mm & 610mm
Coil weight	3~5 tons
Zinc coating	80~275 g/m2
Thickness of top paint	15~25 microns
Thickness of reverse paint	5~7 microns
Color	any RAL code
Package	vertical, eye to sky & horizontal
MOQ	25 tons

Q: I work the Copper plating line at a custom plating facility in MI.I like to use jumper cables with the jumper cable clamps to help confirm electric current is getting to my parts that I am plating. The acids in the Acid copper is constantly eating the steel and copper clamps. WIll I get a good enough current through stainless steel clamps? I use stainless steel hooks, but our maintenance man thinks that is one of the reasons why I have prblems with my parts turning out. I still think it has to do with the clamps getting eatin up. My question is Is stainless steel as good or reliable enough to run an electrical current to my parts if I am using stainless steel or is it best to use another method to try and get a better connection.Please state your sources or experience with working with electricity. I need to get honest answers and not this is my opinion. We are talking about my making a living so this is important to me so I can bring food home to my table. Thanks for all the help.: Stainless steel is not such a good conductor as copper and the only metal with better conductivity is silver. Additionally, stainless steel will corrode in certain very corrosive environments without the presence of oxygen - i.e. when immersed in salt water. If you're getting problems caused by corrosion of the copper contacts you use there may well be a trade off so my advice is to do a trial and see what works best. You can check the conductivity of metals by simple online search for the period table:

Q: How are steel coils inspected for hardness?: Steel coils are inspected for hardness using various methods to ensure their quality and suitability for specific applications. One common method is the Rockwell hardness test, which involves pressing a diamond or ball indenter into the surface of the coil and measuring the depth of indentation. The hardness value is then determined based on the depth measurement. Another method used is the Brinell hardness test, which employs a hardened steel or tungsten carbide ball indenter to create an indentation on the coil's surface. The diameter of the indentation is measured, and the hardness value is calculated using a formula based on the applied load and the diameter of the indentation. Vickers hardness test, on the other hand, uses a pyramidal diamond indenter to create an indentation on the coil's surface. The indentation diagonal lengths are measured, and the hardness value is calculated using a formula based on the applied load and the diagonal lengths. Apart from these traditional methods, modern technology has introduced non-destructive testing techniques such as ultrasonic testing and eddy current testing. Ultrasonic testing involves transmitting ultrasonic waves through the coil and measuring the time taken for the waves to return. Changes in the wave pattern can indicate variations in hardness. Eddy current testing uses electromagnetic induction to detect changes in electrical conductivity, which can be correlated to hardness variations in the steel coil. Overall, steel coils undergo rigorous inspection processes using a combination of traditional and advanced techniques to ensure their hardness meets the required specifications. These inspections play a crucial role in maintaining the quality and reliability of steel products in various industries.

Q: How are steel coils inspected for bendability?: Steel coils are inspected for bendability using a variety of methods to ensure their suitability for various applications. One common inspection method is the 3-point bend test, where the coil is subjected to a bending force at three specific points along its length. This test helps determine the coil's resistance to bending without fracturing or breaking. During the 3-point bend test, the coil is placed on a support system with two fixed points and one movable point. A force is then applied to the movable point, causing the coil to bend. The amount of force required to achieve a specific level of bending is measured and compared against acceptable standards. Another method used for inspecting steel coils is the mandrel bend test. In this test, a mandrel of a specific diameter is inserted into the coil and bent to a specified angle. The coil is then examined for any signs of cracking or deformation. This test helps determine the coil's flexibility and ability to withstand bending without damage. Visual inspection is also an important part of the inspection process. Trained inspectors visually examine the coil for any visible defects such as cracks, deformations, or irregularities. They also check for proper coil dimensions and uniformity throughout. In addition to these methods, non-destructive testing techniques like ultrasonic testing or magnetic particle inspection may be used to detect any internal defects or flaws that may affect the bendability of the coil. Overall, a combination of mechanical testing, visual inspection, and non-destructive testing methods are employed to ensure that steel coils meet the required bendability standards. These inspections help ensure the quality and reliability of the steel coils for various industries where bendability is a critical factor.

Q: What are the common coil grades available for steel coils?: Steel coils come in different grades, each with its own distinct properties and uses. Some commonly used grades include: 1. HRC (Hot Rolled Coils): These coils are made by heating a steel slab to its recrystallization temperature and rolling it into a coil. HRC coils are known for their excellent weldability and formability, making them suitable for various applications like construction, automotive manufacturing, and general engineering. 2. CRC (Cold Rolled Coils): CRC coils are produced by further processing HRC coils through cold reduction, which involves passing the steel through rollers at room temperature. CRC coils have a superior surface finish and dimensional accuracy, making them ideal for applications that require a smooth and uniform appearance, such as automotive body panels, appliances, and electrical equipment. 3. GI (Galvanized Coils): GI coils are created by coating regular carbon steel coils with a layer of zinc through a hot-dip galvanizing process. This provides excellent corrosion resistance, making GI coils suitable for outdoor applications like roofing, fencing, and structural components. 4. Stainless Steel Coils: Stainless steel coils are made from different grades, with the most common being austenitic (such as 304 and 316) and ferritic (such as 430). Stainless steel coils offer excellent corrosion resistance, high temperature resistance, and aesthetic appeal, making them widely used in industries like food processing, chemical processing, and architecture. 5. EG (Electro-galvanized Coils): EG coils are similar to GI coils, but the zinc coating is applied using an electrolytic process instead of hot-dipping. EG coils have a thinner and smoother zinc layer, making them suitable for applications that require a brighter and more aesthetic appearance, such as automotive parts, appliances, and decorative items. These are just a few examples of the coil grades available for steel coils. The choice of the right grade depends on factors like the intended application, required mechanical properties, and desired aesthetics. It is important to seek guidance from steel suppliers or industry experts to determine the most suitable coil grade for a specific application.

Q: What are the dimensions of steel coils used in the industrial machinery industry?: In the industrial machinery industry, the dimensions of steel coils can vary depending on the specific application and requirements. However, it is generally observed that steel coils used in this industry typically have a width ranging from 600 to 2,000 millimeters (24 to 79 inches) and a weight ranging from 2 to 25 metric tons (4,400 to 55,100 pounds). The core, or inner diameter, of the coil can range from 508 to 762 millimeters (20 to 30 inches). Furthermore, the thickness of the steel coil can range from 0.4 to 25 millimeters (0.016 to 0.98 inches). These dimensions may experience variations according to the specific needs and specifications of the machinery being manufactured or used in the industrial machinery industry.

Q: What are the main steel coil producing countries?: The main steel coil producing countries are China, Japan, India, the United States, and Russia.

Q: so why shouldn't one use a steel cased 223 in an ar15?: You can. A steel case is cheaper to make than a brass case, resulting in cheaper ammo, in wich they normaly use cheap, corrosive loadings. So steel cased stuff will normally be very dirty to shoot. Clean your gun after shooting and you will be fine. The story of them wearing the extractor is crap, however: the extractor is made of a steel way harder than the cheapo-steel the case is made of. It wonn? scrach it. Even if it would, considering the amount of money you save with the cheap ammo like bear and wolf, changing the extractor once in a while would still be saving you a ton of money.

Q: I'm putting a bathroom in my basement. I'm an Ironworker btw. I wanted to go with steel studs due to the fact that they are light, and I won't have a big mess. I live in the Chicago area and they should be easy to find. Here is my question. Are they not being used anymore? I ordered 100 studs from Lowe's but they didn't have track. The delivery guy was a retired Carpenter and he told me that I got all the studs they had, they no longer stock steel studs, and they don't have track. Am I missing something? Menards didn't have track either.: Ask a Carpenter friend where you can buy metal studs. There should be a large drywall supplier somewhere close to your area - they usually also stock metal studs and ceiling grid that sort of all goes together for contractors. You will have a choice of 20 or 25 gauge studs track. 25 gauge is pretty flimsy so I suggest using 20 gauge. Get a small box of tek screws to attach studs to track. Also get some self drilling drywall screws 1+5/8 for 5/8 thick gyp bd. or 1+1/4 for 1/2 gyp bd. I would also buy MR drywall (moisture resistant) for any work in a basement. Another tip : Buy some 1x4 composite trim boards to use for your bottom plate. Clean the slab good where you plates will go, then use some Liquid Nails hd and glue your plates down to the slab. That way you won't be drilling holes in the slab that could allow water to seep up through them. The composite trim will not wick moisture and it will keep your metal studs up off the floor should you ever have a water problem in the bathroom. Keep your drywall up off the floor about 1/2 by laying a scrap pc. of drywall against the plate before you hang the board. Allow enough room to line the perimeter of your door frame with 2x 4 vs. metal stud. It makes it easier installing the door and trim.

Q: What is the average flatness tolerance for steel coils?: The average flatness tolerance for steel coils typically ranges between 0.25% and 0.5% of the coil's width.

Q: How are steel coils manufactured?: Steel coils are manufactured through a series of processes that involve the transformation of raw materials into the final product. The manufacturing process begins with the extraction of iron ore, which is then smelted in a blast furnace to produce pig iron. The pig iron is further refined in a basic oxygen furnace to remove impurities and adjust the carbon content. Once the molten steel is obtained, it is continuously cast into large slabs or billets. These slabs are then rolled into thinner sheets or strips through a process called hot rolling. This involves passing the steel through a series of high-pressure rollers, which reduce the thickness and shape the material to the desired dimensions. During this process, the steel is also treated to improve its mechanical properties, such as strength and hardness. After hot rolling, the steel is pickled and cleaned to remove any scale or impurities on the surface. It is then cold rolled to further reduce the thickness and improve the surface finish. Cold rolling involves passing the steel through a set of rollers at room temperature, which increases its strength and dimensional accuracy. To form steel coils, the cold-rolled steel is typically wound tightly into a large coil shape. This is achieved by feeding the steel strip through a series of rollers that gradually wind it into a spiral. The coils are then typically annealed to relieve internal stresses and improve the material's formability. Finally, the steel coils are coated or treated, depending on their intended use. This can involve applying a protective coating, such as zinc or paint, to enhance corrosion resistance or providing a specific surface treatment for improved adhesion in subsequent processes. Overall, the manufacturing of steel coils is a complex process that involves several stages, including smelting, casting, hot rolling, cold rolling, coiling, and surface treatment. Each step contributes to the final product's quality and properties, ensuring that steel coils meet the required specifications for various industrial applications.

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