Z40 BMP Prepainted Rolled Steel Coil for Construction
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 30000 m.t./month
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Structure of Z40 BMP Prepainted Rolled Steel Coil for Construction
Description of Z40 BMP Prepainted Rolled Steel Coil for Construction
1. Prepainted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized or galvalume steel sheets.
2. The base metals for prepainted steel coil consist of cold rolled, HDGI Steel, electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of prepainted 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 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 steel coils can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.
Main Feature of Z40 BMP Prepainted Rolled Steel Coil for Construction
Uncoated CR steel sheet
With the features of in line with the international highest standards in demension and shape, excellent surface finish and properties, the products are mainly used in home appliance and automobile industries.
Galvanized steel sheet(include HDG and EG)
With the features of good corrosion resistance, the products are mainly used in automobile, home appliance, electronics, building and machinery manufacture industries, etc.
Precoated steel sheet
With the features of enviromental protection and good processablility, long lasting surface durability, rich in colors, the products are maily used in building, home appliance and furniture industries, etc.
Applications of Z40 BMP PPGI Prepainted Rolled Steel Coil for Construction
A. Corrugated design makes it excellent waterproof performance
B. Materials as prepainted steel sheets, galvanized steel sheets, galvalume (Al-Zn coated sheets) are available to make corrugated sheet.
C.Those material are durable, anti-corrosion in bad weather for 20-30 years based on it's Zinc(Galvanized) coating or AZ (Galvalume) coating.
D. Different shape of the sheet make it suitable for any style of buildings.
E.Easy to install, no need special tools to fix the sheet.
F.Light weight due to high strength to weight ratio of steel. Light weight means easier handling lower shipping costs, easier installation
G. Different color is availbe base on the RAL Standard make your building more beautiful.
H. We will provide the best solutions if you don't have a exact idea of the specification you want for the steel sheet based on your weather conditions, engineering structure, construction budget and so on.
Specifications of Z40 BMP Prepainted Rolled Steel Coil for Construction
Product | Z40 BMP Prepainted Rolled Steel Coil for Construction |
Material Grade | SGCC / SGCH / DX51D+AZ, etc |
Thickness | 0.6-3.0mm |
Width | 500-1500mm |
Tolerance | Thickness: +/-0.02mm , Width:+/-2mm |
Zinc-coating | Z30-150g/m2 |
Technique | Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume |
Surface | Dried, Chromated, Unoiled |
Spangle | Regular spangle , small spangle, zero spangle |
ID | 508MM 610MM |
Coil weight | 1-25MT |
Export package | Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed |
FAQ of Z40 BMP Prepainted Rolled Steel Coil for Construction
We have organized several common questions for our clients，may help you sincerely：
1. How Can I Visit There?
Our company is located in Tianjin City, China, near Beijing. You can fly to Tianjin Airport Directly. All our clients, from home or aboard, are warmly welcome to visit us!
2. How Can I Get Some Sample?
We are honored to offer you sample.
3. Why choose CNBM?
Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry we also try our best for the delivery time ,because time longer and our cost is higher.
- Q: Are steel coils affected by magnetic fields?
- Magnetic fields can indeed have an impact on steel coils. Steel, being a ferromagnetic material, has the ability to be magnetized or attracted to magnets. When a steel coil is subjected to a magnetic field, it can develop its own magnetic field, resulting in magnetization. The consequences of this magnetization depend on the strength and duration of the magnetic field. In situations where the magnetic field is strong and the coil remains exposed to it for a considerable period, the steel coil may retain some magnetism even after the magnetic field is no longer present. This can create difficulties in certain applications that call for a non-magnetic material, as the magnetized steel coil may attract or disrupt nearby objects. Conversely, if the magnetic field experiences frequent changes or fluctuations, it can induce electrical currents within the steel coil through a process called electromagnetic induction. These currents, known as eddy currents, can generate heat within the coil. This heat can lead to energy losses and potentially damage the coil. Therefore, it is vital to carefully consider the impact of magnetic fields on steel coils in various applications. Protective measures, such as shielding or demagnetization processes, may be necessary to minimize the consequences of magnetic fields on steel coils, when deemed necessary.
- Q: How are steel coils processed for painting or coating?
- Steel coils are processed for painting or coating through a series of steps. First, the coils are cleaned and treated to remove any impurities, such as oil, dirt, or rust, using chemical treatments or mechanical methods like abrasive blasting. Then, a primer or base coat is applied to enhance adhesion and provide corrosion resistance. After drying, the topcoat or finishing coat is applied using various techniques like coil coating, electrostatic spraying, or powder coating. Finally, the coated steel coils undergo curing or baking at high temperatures to ensure proper adhesion and durability of the paint or coating.
- Q: Why can hot rolled coils be placed outside?
- Because hot-rolled steel coils are generally used as raw material for semi-finished products, they have to be further used for pickling and cold rolling to make more use. The rust and dust can be removed after pickling
- Q: What are the different methods of annealing steel coils?
- There are several different methods of annealing steel coils, each with its own advantages and applications. The main methods include full annealing, process annealing, and spheroidize annealing. Full annealing is the most common method and involves heating the steel coils to a temperature above its critical point, typically between 800 and 900 degrees Celsius (1472 and 1652 degrees Fahrenheit), and then slowly cooling it down in a controlled manner. This process helps to refine the grain structure of the steel, making it softer and more ductile. Full annealing is often used to relieve internal stresses, improve machinability, and enhance the overall mechanical properties of the steel. Process annealing, also known as subcritical annealing or stress relief annealing, is a method used to reduce the hardness and brittleness of steel coils. It involves heating the coils to a temperature below its critical point, typically between 550 and 650 degrees Celsius (1022 and 1202 degrees Fahrenheit), and then slowly cooling them down. This process helps to relieve internal stresses that may have developed during previous manufacturing processes, such as cold working or welding. Process annealing is commonly used to improve the formability and toughness of steel coils. Spheroidize annealing is a specific type of annealing that is used to soften high carbon and alloy steels. It involves heating the steel coils to a temperature slightly below its critical point, typically between 650 and 700 degrees Celsius (1202 and 1292 degrees Fahrenheit), and then holding it at that temperature for a prolonged period of time. This allows the carbides within the steel to transform into rounded or spheroidal shapes, which increases the steel's machinability and ductility. Spheroidize annealing is often employed in the production of cutting tools, bearings, and other applications where improved machinability is desired. In addition to these main methods, there are also variations and specialized techniques that can be used for specific purposes, such as recrystallization annealing, intercritical annealing, and solution annealing. Each method has its own set of parameters and temperature ranges, and the choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and the intended application of the steel coils.
- Q: Which one has more electrical resistivity? Wood or steel? And why?I know that the resistivity depends on the material of the conductor, but i want a perfect explaination please.Thnx in advance :)
- Steel is a conductor while wood is an insulator. There are no free electrons available in wood for conduction of electricity to take place. So wood has more electrical resistivity than that of steel.
- Q: What are the different types of steel coil slitting methods?
- There are several different types of steel coil slitting methods, including rotary shear, loop slitting, and oscillating shear. Each method has its own advantages and is used for different applications in the steel industry.
- Q: How are steel coils used in appliances?
- Steel coils are used in appliances to generate heat or create magnetic fields. They are commonly found in stovetops, ovens, and refrigerators, where they are responsible for heating elements or powering motors.
- Q: the difference between the original steel and mild steel from percentage of carbon
- As the first answers suggest, the prolbem is that these terms are not specific, they are not scientifically or technically defined. This is like asking: what is the difference between a four door car and a sedan? There are hundreds of steel alloys ranging from Fe + a little C + very little else to alloy and tool steels with significant amounts of Cr, Ni, Si, and a number of other elements + C. And... for any given steel alloy, there are many different ways to heat treat it. A given piece of steel can be heat treated so hard and brittle that it could shatter like glass and then it could be heat treated to make it into a spring or heat treated to make it stretch like taffy. If you really want to understand steels, yes, there are lots of books on sword making (some written by people who actually understand steels) but... you need to study metallurgy. There are graduate level courses just on the metallurgy of steels. Of course to understand this course you need to understand a whole lot of fundamental metallurgy. All this stuff on steel makes perfect sense because, in terms of weight (tonage) produced, steel is, hands down, nothing else remotely comes close, the most important metal humans have.
- Q: What are the common coil packaging methods?
- The common coil packaging methods include stretch wrapping, strapping, banding, and using coil covers.
- Q: I've played guitar for years, now I want a steel guitar. As a beginner, to learn and experiment with, which one would be better for me?
- Pedal steel is very difficult. You need to co-ordinate both hands, both feet and both knees to play it effectively. Lap steel is a lot easier. I suppose it depends how much of a challenge you want. A good lap steel guitar is usually cheaper than a good pedal steel too, so that's another consideration to take into account.
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Z40 BMP Prepainted Rolled Steel Coil for Construction
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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