Galvalume Hot Dip Galvanized Steel Sheet in Coils
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 m.t./month
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Galvalume Steel Sheet in Coils with Prime Quality and Best Price
Product Description:
Structure:
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
Main Features:
• Excellent process capability
• Smooth and flat surface
• Workability, durability
• Excellent anticorrosive property
• High strength
• Good formability
• Good visual effect
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:
Processability | Yield strength | Tensile strength | Elongation % | 180°cold-bending |
Common PV | - | 270-500 | - | d=0,intact,no zinc removal |
Mechanical interlocking JY | - | 270-500 | - | d=0,intact,no zinc removal |
Structure JG | >=240 | >=370 | >=18 | d=0,intact,no zinc removal |
Deep drawn SC | - | 270-380 | >=30 | d=0,intact,no zinc removal |
EDDQ SC | - | 270-380 | >=30 | d=0,intact,no zinc removal |
- Q: i am working in a firm that deals with steels.. so it is necessary for me to understand the chemistry of the steels from their names so that i need not memorize all the grades with their metallury.. where can i find information about this nomenclature ? please help
- For steels with a four number code like 1020, 4140 ect the first two digits are the alloying information. I think you need to memorise those. 10 steels are plain carbon steel with no alloying. 41 steels are chrome-molly. The third and forth digits are the carbon content. 1020 is 0.2% Carbon, 4140 is 0.4% carbon. I don't know if there is a system to stainless steels.
- Q: A song by brokencyde is called Blue Steel.... a verse in it says Don't make me show you blue steel.
- Reference is to a gun which is typically the process of Bluing the steel of the guns metal parts.
- Q: how is stainless steel made? what are the things used in making it?
- There are 3 basic stainless steels. The Martinsitic, the ferritic, and the Austinistic. The spelling may be wrong on all of them. (Got out of school in 1966 with my metallurgy in 1965. The Ferritic is magnetic and has some resistance to corrosion but the Martinsitic is much more resistant to corrosion. The Austinitic stainless is very resistant to corrosion. The differences are the amount of Chrome and Nickel in the batches. The Austinitic has an 18/8 ratio of Chromium and Nickel with the rest Iron and minor ingredients. The carbon content is very important and these steels are often made in small batches with close monitoring of composition and carbon content. Scrap metals are frequently used with the chrome and nickel being added as carefully selected scrap or even fresh crude stocks. Electric melting is frequent to avoid contamination.
- Q: How are steel coils used in the production of roofing and siding?
- Steel coils are an essential component in the production of roofing and siding materials. These coils, made from high-quality steel, undergo various processes to transform them into the final products used for roofing and siding purposes. Firstly, the steel coils are uncoiled and flattened to obtain a flat sheet of steel. This sheet is then cleaned to remove any impurities or contaminants. The cleaning process involves treating the surface of the steel with chemicals and rinsing it thoroughly to ensure a clean and smooth surface. Next, the steel sheet is coated with a protective layer to enhance its durability and resistance to corrosion. This coating can be done through various methods such as hot-dip galvanizing, electro-galvanizing, or applying a layer of metallic or organic coating. The specific coating method depends on the desired properties and aesthetic requirements of the roofing or siding material. After the coating process, the steel sheet is formed into the desired shape and profile. For roofing applications, the steel sheet is typically corrugated or formed into interlocking panels. This allows for easy installation and ensures a secure and weatherproof roofing system. Similarly, for siding applications, the steel sheet can be formed into different profiles such as horizontal or vertical panels, shingles, or shakes. Once the steel sheet is formed, it may undergo additional treatments to enhance its performance. This can include applying a protective layer of paint or other finishes to improve its appearance and resistance to fading, chipping, or scratching. The steel coils can also be embossed or stamped with patterns or textures to provide aesthetic appeal. Overall, steel coils play a crucial role in the production of roofing and siding materials. They provide strength, durability, and weather resistance, making them an ideal choice for protecting buildings from the elements. Additionally, steel coils offer versatility in terms of shape, profile, and finish, allowing for a wide range of design options for roofing and siding applications.
- Q: What are the common coil thicknesses available for steel coils?
- The available thicknesses for steel coils, which are commonly used in different industries and applications, can vary depending on specific requirements. The range of coil thicknesses for steel typically falls between 0.5mm and 3mm. In lightweight applications or situations where flexibility is necessary, thinner steel coils with thicknesses ranging from 0.5mm to 1.5mm are often preferred. These thinner coils find suitability in automotive body panels, roofing, and general sheet metal fabrication. On the other hand, for applications that demand higher strength and durability, thicker steel coils with thicknesses ranging from 1.5mm to 3mm are frequently employed. These thicker coils are commonly seen in heavy-duty construction, structural components, and industrial equipment manufacturing. It is important to keep in mind that these mentioned ranges are general and can be subject to variation depending on specific project requirements or customer preferences. Steel coil thicknesses can be tailored to meet specific needs, providing greater flexibility across various industries.
- Q: How are steel coils inspected for yield strength using tensile testing?
- Steel coils are inspected for yield strength using a testing technique called tensile testing. Tensile testing involves subjecting a sample of the steel coil to controlled tension until it reaches its breaking point. This test helps determine various mechanical properties of the steel, including yield strength. To inspect steel coils for yield strength using tensile testing, a small strip of the coil is cut and prepared for testing. The strip is placed in a tensile testing machine, which consists of two grips that firmly hold the strip at opposite ends. The machine then applies a steadily increasing force to the strip, causing it to elongate until it ultimately breaks. During 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 deform plastically, or exhibit permanent deformation without any increase in load. The yield strength is typically reported as the stress required to cause a specific amount of plastic deformation, commonly 0.2% or 0.5%. This value represents the maximum stress that the steel can withstand without permanent deformation occurring. By conducting tensile testing on a sample of the steel coil, it is possible to determine its yield strength. This information is crucial for ensuring the quality and reliability of the steel coil, as it indicates the maximum stress it can withstand before permanent deformation occurs. Additionally, this testing method allows for the evaluation of other mechanical properties, such as ultimate tensile strength, elongation, and modulus of elasticity, providing a comprehensive understanding of the steel's performance characteristics.
- Q: How are steel coils inspected for surface cleanliness using cleanliness tests?
- Steel coils are inspected for surface cleanliness using cleanliness tests to ensure that they meet the required quality standards. These tests involve various methods to assess the presence of contaminants, such as dirt, oil, grease, rust, or scale, on the surface of the steel coils. One commonly used cleanliness test is the visual inspection, where trained inspectors visually examine the surface of the coils for any visible contaminants. They look for any signs of staining, discoloration, or foreign substances that may affect the quality of the steel. Another cleanliness test is the wipe test, where a clean cloth or wipe is used to wipe the surface of the steel coil. This cloth is then analyzed for the presence of contaminants using techniques like gravimetric analysis or solvent extraction. The amount of contaminants collected on the cloth can be measured, providing an indication of the cleanliness of the steel surface. Surface roughness tests are also performed to assess cleanliness. A roughness gauge is used to measure the roughness of the steel surface, which can indirectly indicate the presence of contaminants. If the surface roughness measurements are higher than the specified limits, it suggests the presence of contaminants affecting the cleanliness of the steel. In addition to these tests, cleanliness tests may also involve techniques like wetting tension measurement, water break test, or contact angle measurements. These tests evaluate the surface energy and wetting properties of the steel, which can be affected by the presence of contaminants. By conducting cleanliness tests, steel coils can be thoroughly inspected for surface cleanliness. These tests help in identifying any potential contaminants that may compromise the quality and performance of the steel. By ensuring the surface cleanliness of steel coils, manufacturers can provide high-quality products that meet the stringent requirements of various industries.
- Q: How are steel coils used in the manufacturing of automotive springs?
- Steel coils are used in the manufacturing of automotive springs as they provide the necessary strength and flexibility required for suspension systems. These coils are shaped, heated, and tempered to achieve the desired spring rate and durability, ensuring a smooth and controlled ride for vehicles.
- Q: Galvanized Steel or Standard Steel. This will be for the grilling surface.
- Bare steel. Galvanized or ANY coated racks will produce deadly chemicals in the food when heated. Galvanizing is a tin coating applied to the surface of the iron. Cadmium is a deadly chemical when ingested and is one of the chemicals on refrigerator racks. I'm not sure about Stainless Steel. The safest way is if in doubt DON'T.
- Q: How are steel coils inspected for surface finish using profilometry?
- Steel coils are inspected for surface finish using profilometry by measuring the surface topography using a profilometer. The profilometer scans the surface of the steel coil and records the deviations from the ideal surface. This data is then used to determine the roughness, waviness, and other surface parameters of the steel coil, providing a quantitative assessment of its surface finish quality.
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Galvalume Hot Dip Galvanized Steel Sheet in Coils
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 10000 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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