PREPAINTED GALVANISED STEEL IN COILS
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Prepainted galvanized color coated PPGI steel:
| Thickness | 0.12-1.2mm |
| Width: | 700-1250mm |
| Material: | SGCC,SGCD,SECC,SECD,DX51D+Z |
| Zinc coating: | 30-180G/M2 |
| Surface Structure: | galvanized ,zero spangle, regular spangle or normal spangle |
| COLOR: | RAL number or sample colour |
| Coating: | Topside: 5micron primer +15-20microns polyester Backside: 5-8microns primer epoxy. Surface treatment: chromated and oiled, chromated and non-oiled |
II Main characteristics :
1.strong corrosion resistance
2.surface quality
3.conducive to deep processing,such as corrugated steel sheet 4.economy and practicality
III Applications:
Household Appliance:
1.Refrigerator shutter &side panels, Washer, Freezers, Air conditions,
2.Rice Cooker, Microwave Ovens, Water Heaters, Sterilization Cabinets, Range Hoods
3.Computer Panels , DVD/DVB panels, TV back panel etc.
- Q: I noticed a friend's appliances are not magnetic, and mine are. Both are stainless steel. Are there two types of stainless steel or something? Thanks
- There are many types of stainless steel. Some are magnetic and some are non-magnetic. The magnetic properties of stainless steel are very dependent on the elements added into the alloy, and specifically the addition of nickel can change the structure from magnetic to non-magnetic. Poor heat treatment or high heat input welding of normal or high carbon austenitic stainless steels will cause sensitization, ie formation of chromium carbides. The formation of carbides not only reduces the corrosion resistance of the stainless steel but also tends to form martensite around the carbide. This martensite is magnetic and the more severe the sensitisation, the stronger are the magnetic properties. When nickel is added, for instance, the austenite structure of iron is stabilized. This crystal structure makes such steels non-magnetic and less brittle at low temperatures. Martensitic stainless steels are magnetic. *Wrought, austenitic stainless steels, such as 304 and 316, are generally regarded as non-magnetic in the annealed condition, ie they are not attracted significantly by a magnet. However, if they are cold worked they will be attracted to a permanent magnet. The change occurs because the cold work deformation induces a transformation of the microstructure from austenite to martensite. The effect is less marked in alloys with high concentrations of austenite stabilisers such as nickel, nitrogen and carbon. Once the martensite is formed, it may also become magnetised. *In contrast to the austenitic alloys, ferritic stainless steels such as 409 or 3Cr12/5Cr12 and martensitic stainless steels such as 420, are strongly attracted to a magnet even in the annealed state. The duplex and super-duplex stainless steels will also be strongly attracted because they contain about 50% ferrite in their microstructure. *
- Q: What are the different types of steel coil surface defects?
- During the manufacturing or handling process, various steel coil surface defects may arise. Some commonly encountered types are as follows: 1. Rust: When moisture or oxygen comes in contact with the steel coil, rust, a reddish-brown discoloration, may develop on its surface. 2. Scratches: While the steel coil is being handled or transported, superficial marks known as scratches can be incurred. These marks can vary in depth and severity, ranging from light surface scratches to deep gouges. 3. Stains: Exposure to chemicals or other substances can lead to stains, discolored patches that appear on the coil's surface. Removing them may prove to be challenging. 4. Roll marks: During the rolling process, impressions or indentations called roll marks may form. Uneven pressure or misalignment of the rolls causes them, resulting in lines or patterns on the coil's surface. 5. Edge wave: Imperfectly flat edges of the coil can result in a defect known as edge wave. This defect causes the edges to appear wavy or uneven and can impact the coil's overall appearance and performance. 6. Oil spots: If the oil or lubricants utilized in the manufacturing process are not adequately removed, surface defects called oil spots can manifest. These spots appear as dark patches or spots on the coil's surface and may hinder the adhesion of coatings or paints. 7. Pitting: Small, shallow depressions or pits on the coil's surface are indicative of a defect called pitting. Factors like corrosion, uneven cooling, or impurities in the steel can cause this defect. 8. Holes: Holes are severe surface defects that can arise due to various factors, including corrosion, mechanical damage, or manufacturing errors. These defects come in different sizes and can significantly compromise the coil's structural integrity. Promptly addressing these surface defects is crucial for maintaining the quality and performance of the steel coil. Regular inspections, proper handling, and appropriate surface treatments can help minimize the occurrence of these defects.
- Q: How are steel coils processed for painting or coating?
- Steel coils are typically processed for painting or coating through a series of steps. First, the coils are cleaned to remove any dirt, oil, or rust. This is usually done through a chemical cleaning process or by using mechanical methods such as shot blasting. Next, the coils are pre-treated to enhance adhesion and corrosion resistance. This can involve applying a conversion coating or a primer. Finally, the coils are painted or coated using a variety of methods such as roll coating, spray coating, or electrostatic coating. The specific process depends on the desired finish and application requirements.
- Q: What is the difference between carbon steel and spring steel?? And which is the better one to make swords with??
- High Carbon Spring Steel
- Q: What is the minimum order quantity for steel coils?
- The minimum order quantity for steel coils varies depending on the supplier and specific product. It is recommended to contact the supplier directly to inquire about their minimum order requirements for steel coils.
- Q: How are steel coils processed for edge trimming or slitting during processing?
- Steel coils are processed for edge trimming or slitting during processing by utilizing specialized machinery. The coils are unwound and fed into the machine, where the edges are trimmed off to achieve the desired width. For slitting, the coil is passed through multiple sets of circular blades that cut it into narrower strips. This process ensures precise dimensions and smooth edges, making the steel coils ready for further applications.
- Q: What are the main characteristics of steel coils?
- The main characteristics of steel coils include their high strength and durability, flexibility, corrosion resistance, and ability to be easily formed and shaped. They are also known for their uniformity, as they are typically manufactured to precise dimensions and tolerances. Additionally, steel coils have excellent conductivity properties and are commonly used in various industries such as automotive, construction, and manufacturing.
- Q: Can steel coils be used in electrical applications?
- Yes, steel coils can be used in electrical applications. Steel coils are often used as magnetic cores in transformers and inductors, which are essential components in electrical circuits. The steel used in these coils is typically a type of high-quality electrical steel that has specific magnetic properties, such as low core losses and high permeability. These properties allow the steel coils to efficiently transfer electrical energy between different components of the circuit. Additionally, steel coils can also be used in other electrical applications, such as in the construction of electric motors and generators. Overall, steel coils are widely utilized in electrical applications due to their magnetic properties and their ability to handle high currents and temperatures.
- Q: Can I ever get my classical guitar reinforced so it can have steel strings on it?
- I will also strongly agree with Joshua, and Birdgirl. Besides after the cost of such reinforcements, would cost as much, or more than the cost of buying a new one. Besides if the guitar is a decent quality, the alterations made would destroy any value it has, as well as not guaranteeing that the guitar will even be fully functional, or hold together over a period of time. It could easily cost two hundred dollars to have done, and at that price, you could buy a decent one, that is made for steel strings. Also fo4rget mounting steel strings on the one you have, unless you want to destroy it.
- Q: I already have the county permits and bank loan, but the foundation hasn't been poured. Is it too late to convert to steel?
- Steel is going to be a whole different world. You will need to go back to square one and get house plans that are drawn for structural steel. First thing you need to do is find a builder that knows how to build with steel and get an idea of the price.
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PREPAINTED GALVANISED STEEL IN COILS
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
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