Galvanized Cold Rolled Sheet Coil for building use
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 36 m.t.
- Supply Capability:
- 30000 m.t./month
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Brief Introduction
1. Prepainted Galvanized Steel Coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.
2. The base metal for Prepainted Galvanized Steel Coil is HDGI Steel. The finish coats of Prepainted Galvanized Steel Coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.
3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.
4. The color of the Prepainted Galvanized Steel Coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.
5. The Prepainted Galvanized Steel Coil can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.
Specification
1. Thickness: 0.3-0.8mm
2. Width: 914-1250mm
3. Inner Diameter: 508mm
4. Weight of Steel Coil: 3-15MT
5. Available Dipped Layer: 50-150g/m2
6. Surface Texture: Normal Coated
7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.
8. Front Side Paint Thickness: 15-25μm (bottom paint+top paint)
9. Back Side Paint Thickness: 5-10μm
Mechanical Properties
1. Mechanical properties of base metals
Grade | Tensile Test | ||
Yield Strength MPa | Tensile Strength MPa | Elongation A80mm % ≥ | |
DX51D+Z | 140-350 | 270-500 | 22 |
DX52D+Z | 140-300 | 270-420 | 26 |
DX53D+Z | 140-260 | 270-380 | 30 |
2. Common performance of front coating
(1). Thickness: ≥20μm
(2). Pencil Hardness: 2H
(3). 60° specular glossiness of coating: >60
(4). 180°bend: ≤3T
(5). Impact: ≥9J
(6). Salt Fog Resistant: ≥500h
(7). Color difference:<3δe< p="">
- Q: I just bought some cheap earrings from this beauty supply store but they said surgical steel So will they prevent my ears from bleeding / infection ?
- Surgical steel is a grade of steel often used in medical appliances like tweezers, forceps, etc. It's generally non-reactive and considered very safe. It doesn't contain any special properties against infection--you still have to observe basic hygiene and clean your piercings properly--but most people can wear surgical steel earrings without a problem. However, if you have a contact allergy to base metals like nickel, surgical steel may cause redness or irritation because of the metals used in it. If cheap rings or necklaces make your skin break out in a rash you should NOT wear surgical steel.
- Q: I just purchased this Benchmade knife with m390 steel blade and it cost me a fortune but I wanted to know if this new steel is a tool steel. what classifies a tool steel. M390 = 1.9 carbon, 20. chromium, .30 manganese, 1. molybdenum, .60silicon, .60 tugsten, 4. vanadium at 60-62 HRC
- M390 Steel
- Q: How are steel coils inspected for oil or rust residues using chemical analysis?
- Chemical analysis techniques can be employed to inspect steel coils for the presence of oil or rust residues. One widely used method is Fourier transform infrared spectroscopy (FTIR), which involves subjecting a small sample of the steel coil to infrared radiation and analyzing the resulting infrared spectrum. By identifying specific chemical bonds indicative of oil or rust residues, this technique can effectively detect their presence. For oil residue detection, a common approach is to examine the FTIR spectrum for a peak at approximately 2920 cm-1, which corresponds to the stretching vibration of C-H bonds in hydrocarbon chains. The observation of this peak signifies the existence of oil residues on the steel coil. To identify rust residues, the FTIR spectrum is scrutinized for characteristic peaks associated with iron oxide or hydroxide compounds. For instance, the presence of a peak at around 560 cm-1 suggests the presence of iron oxide (FeO) or iron hydroxide (Fe(OH)3). Apart from FTIR analysis, other chemical analysis techniques like X-ray fluorescence spectroscopy (XRF) or energy-dispersive X-ray spectroscopy (EDX) can also be employed. These methods provide information about the elemental composition of the steel coil, enabling the identification of specific elements linked to oil or rust residues, such as carbon or iron. In essence, the chemical analysis of steel coils for oil or rust residues offers a dependable and precise means of ensuring the coils' quality and cleanliness before further processing or utilization.
- Q: How can I arbitrate quality of steel before purchasing it??
- The quality of the alloy can be very well be judged by its appearance and lustrous surface. The more luster on the surface the more refine will the steel be. To judge its tenacity and endurance, the alloy can be subjected to a series of procedures involving stress and shock. The reaction to these processes can determine whether the steel be fit for the purpose required.
- Q: How are steel coils used in the production of furniture?
- Steel coils are commonly used in the production of furniture as they provide strength, durability, and stability. These coils are typically used in the construction of furniture frames, providing a solid foundation for cushions and upholstered components. Additionally, steel coils can be used in the manufacturing of springs, which are essential for providing comfort and support in mattresses, sofas, and other upholstered furniture pieces.
- Q: What are the different types of steel coil recoiling methods?
- There are several different types of steel coil recoiling methods, including oscillating recoiling, flying shear recoiling, and rotary recoiling.
- Q: How do steel coils contribute to the transportation industry?
- The versatility and durability of steel coils play a significant role in the transportation industry. These coiled steel sheets have various uses, such as manufacturing automobiles, shipping containers, and railway cars. In the automotive sector, steel coils are utilized to produce different components like body panels, chassis, and engine parts. Steel's strength and malleability make it an ideal material for ensuring vehicle safety and durability. Additionally, steel coils are employed in manufacturing shipping containers, which are crucial for global goods transportation. The sturdiness and resistance to corrosion provided by steel coils ensure the protection of goods during their journey. Moreover, steel coils are essential in the railway industry. They are used to manufacture railway cars, including freight cars and passenger coaches. Steel's strength and durability make it ideal for withstanding the heavy loads and harsh operating conditions experienced by railway vehicles. Steel coils also contribute to the construction of railroad tracks and bridges, providing the necessary strength and stability for safe and efficient transportation. In conclusion, steel coils are indispensable in the transportation industry. They offer the required strength, durability, and versatility for manufacturing various transportation vehicles and infrastructure. Their contribution ensures the safety, reliability, and efficiency of transportation systems, making them vital in the modern world.
- Q: I noticed that Jimmy Page finger picked on a steel acoustic guitar on quite a few tracks like Stairway to heaven and other ones and I was wondering how did he do it? I know it is more difficult to finger pick on a steel acoustic because of the rougher steel strings and higher tensions so I was wondering do they make specific strings that allow for fingerstyle playing? Also Randy Rhoads finger picked a steel acoustic on Dee along with a Classical guitar.
- Nylon Acoustic Guitars
- Q: How do steel coils differ in terms of size and weight?
- Steel coils can vary greatly in terms of size and weight depending on their intended use and production process. The size of a steel coil is typically measured in terms of its outer diameter, inner diameter, and width. The outer diameter refers to the total diameter of the coil, while the inner diameter refers to the diameter of the hollow center of the coil. The width of the coil refers to the distance between the two flat sides of the coil. In terms of weight, steel coils can range from a few hundred pounds to several tons. The weight of a coil is primarily determined by its size and the type of steel used. Coils made from high-strength steel tend to be heavier due to their higher density, while coils made from lower-grade steel can be lighter. The size and weight of steel coils are crucial factors in determining their transportability and handling. Smaller and lighter coils are generally easier to handle and transport, making them more suitable for applications where maneuverability is important. On the other hand, larger and heavier coils are often used in industries where strength and durability are essential, such as construction and automotive manufacturing. Overall, steel coils can vary significantly in terms of size and weight, allowing for a wide range of applications and customization to meet specific requirements in various industries.
- Q: How do steel coils contribute to the automotive lightweighting trend?
- Steel coils contribute to the automotive lightweighting trend in several ways. First and foremost, steel coils are used in the production of advanced high-strength steels (AHSS) which offer a higher strength-to-weight ratio compared to traditional steel grades. These AHSS can provide the same structural integrity as conventional steel, but with reduced weight. By incorporating AHSS into the construction of vehicle components such as body panels, chassis, and suspension systems, automakers can reduce the overall weight of the vehicle, thus improving fuel efficiency and reducing emissions. Furthermore, steel coils are used in the manufacturing of tailor-rolled blanks (TRBs). TRBs are formed by welding or bonding different steel grades together in a coil before stamping them into the desired shape. This allows for the optimization of material usage, as stronger steel grades can be strategically placed in areas that require higher strength, while lighter grades can be used in less critical areas. This technique not only reduces weight but also enhances safety by reinforcing necessary areas of the vehicle. Moreover, steel coils enable the production of thinner and more formable steel sheets. The advancements in steelmaking technology have allowed for the development of thinner gauges without compromising strength and durability. Thinner steel sheets are easier to shape and form, enabling the creation of complex and lightweight automotive parts. This not only reduces weight but also improves design flexibility and aerodynamics, leading to enhanced performance and fuel efficiency. In addition, steel coils contribute to cost-effectiveness in lightweighting efforts. Steel is a relatively affordable material compared to alternatives like aluminum or carbon fiber. By utilizing steel coils, automakers can achieve lightweighting goals while keeping manufacturing costs under control. This affordability aspect is particularly important in the automotive industry, where cost considerations play a significant role in the design and production of vehicles. In summary, steel coils play a crucial role in the automotive lightweighting trend by enabling the production of advanced high-strength steels, tailor-rolled blanks, thinner and more formable steel sheets, and cost-effective lightweight solutions. These advancements contribute to improved fuel efficiency, reduced emissions, enhanced safety, and increased design flexibility, all of which are key factors in the ever-evolving automotive industry.
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Galvanized Cold Rolled Sheet Coil for building use
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 36 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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