High quality of prepainted corrugated steel coil from north of China

High quality of prepainted corrugated steel coil from north of China System 1

High quality of prepainted corrugated steel coil from north of China

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 100000 m.t./month

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2.Main Features of the Pre-Painted Galvanized/Aluzinc Steel Roof：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Pre-Painted Galvanized/Aluzinc Steel Roof Images

High quality of prepainted corrugated steel coil from north of China

4.Pre-Painted Galvanized/Aluzinc Steel Roof Specification

Standard: AISI, ASTM, BS, DIN, GB, JIS

Grade: SGCC SGCH SGCD DX51D

Thickness: 0.13-3.0mm

Model Number: AISI, ASTM, BS, DIN, GB, JIS

Type: Steel Plate

Technique: Cold Rolled

Surface Treatment: Galvanized

Application: Container Plate

Special Use: High-strength Steel Plate

Width: 30-1500mm

Length: any length

color: RAL color

5.FAQ of Pre-Painted Galvanized/Aluzinc Steel Roof

What’s the brand of the paint?

We use the best brand of all of the word—AKZO.

What’s the wet and heat resistance of the roof?

More than 1000 hours.

Q:I was watching a documentary on the samurai vs the European knight. It said that the when Japan was being invaded by the (cant remember) they needed a new weapon. The enemies armor made iron swords useless. While steel swords broke when in combat. So to combat this the Japanese made a hybrid sword. They used a special mold that made the swords back iron while the part that makes contact with the enemy was steel. Also the sword was curved so it increased its armor and cutting power. This revolutionary design made the the sword stronger. The iron back made it not break while the steel edge made it cut through the enemies armor. I want to know how iron is stronger than steel, and how steel can cut better than iron.: Yes because metal alloys are comparatively more strong than pure metal.The worst thing is that iron gets rusted whereas steel does not.And the skyscrapers are made of steel buddy , iron is not used in them.

Q:Which of the two are better for exhaust manifolds, im guessing the stainless steel right?: stainless

Q:How do steel coils contribute to fire resistance in buildings?: Steel coils contribute to fire resistance in buildings primarily due to their material properties. Steel is a non-combustible material, meaning it does not burn or contribute to the spread of fire. It has a high melting point, which helps it retain its structural integrity even under high temperatures. Additionally, steel coils are often used as structural elements in building construction, providing strength and stability to the overall structure. This helps prevent the collapse of the building in case of a fire, providing occupants with more time to evacuate safely.

Q:How are steel coils inspected for coil weight accuracy?: Steel coils are inspected for coil weight accuracy by using weighing scales or load cells to measure the weight of the coil. The coil is placed on the scale, and the weight is compared to the specified weight range provided by the manufacturer. If the weight falls within the acceptable range, the coil is considered accurate.

Q:911 conspiacy theorists. Can fire melt steel?: Don't know the differences in steel strength between the WTC towers and the bridge, but I'll tell you they don't always use the strongest steel in buildings. It is a question of value engineering. Engineers do as code requires, and make the determination based on economics of building. If a steel member requires say 48 KSI, with certain span, but if the price is less expensive to use 35 KSI and reduce the span by adding vertical elements then that is an option that the architects, engineers and developers consider. Like I said, don't much about bridge engineering, but in buildings, it isn't always the strongest steel, based on engineering and economics. And BTW, said time and time again, but ok one more time. STEEL DOESN'T NOT HAVE TO MELT FOR FAILURE. IT LOSES STRENGTH WITH HEAT. THAT IS WHY IT MUST BE PROTECTED BY FIRE RETARDANT. BUT IF THE FIRE RETARDANT IS REMOVED BY EXPLOSION, THEN FIRE CAN CAUSE FAILURE. Sorry for the shouting, but I'm not the only one who says that, but people keep saying steel can't melt, but it doesn't have to for failure. If the steel joist had been in concrete, the WTC towers may have stood, at least longer. But hindsight is 20/20.

Q:I'm going to see Man Of Steel this weekend, and the reviews that I've been hearing aren't that good. I've been hearing that it's this depressing, dark, dramatic film with no humor, loud noises, and action on top of action (which is kind of what I expected from this movie). With that said, I was quite positive that this was what the fans wanted, a more serious Super Man interpretation. I'm ultimately going to judge the movie when I see it, but for now, I have 3 short questions for you:1) What did you think of Man Of Steel?2) Superman Returns got somewhat better reviews than Man Of Steel. Does it seem logical?3) There is a huge fan battle between Man Of Steel and Christopher Reeve's version of Super Man. Which one do you favor?: I know nothing about Superman nor have I watched the other films or read the comics. Man Of Steel was a CGI-fest, maybe a little bit too much, though it is Zack Synder's style. I actually fell asleep for most of the movie, seeing only the first 30 minutes and last 45 minutes? So that might be a good indication or it could just be me. There were loads of action scenes but overall, the movie wasn't that impressionable to me. The storyline was quite standard and had nothing outstanding, not even humour. Lois Lane and Superman barely had much screen time together to establish any chemistry. The other characters were pretty flat as well. I did like the dark psychological themes of Superman's struggles and coming to terms with his abilities though.

Q:How are steel coils used in the manufacturing of pressure vessels?: Steel coils are used in the manufacturing of pressure vessels as they provide a strong and durable material for construction. These coils are typically formed into cylindrical shapes, which are then welded together to create the vessel. The steel coils provide the necessary strength to withstand high pressure and ensure the safety and reliability of the pressure vessel.

Q:How are steel coils tested for compliance with industry standards?: To ensure compliance with industry standards, steel coils undergo a series of rigorous quality control measures. These tests are conducted to verify that the coils meet necessary specifications and are suitable for various applications. Among the primary tests performed on steel coils is dimensional inspection. This entails measuring the thickness, width, and length of the coils to ensure they fall within specified tolerances. Any deviations from the required dimensions may indicate manufacturing defects or potential issues during fabrication. Another crucial test is visual inspection, where trained inspectors meticulously examine the coils for surface defects like scratches, dents, or cracks. Identifying and rectifying these defects is essential as they can impact the performance and durability of the steel coils before they are supplied to customers. Additionally, mechanical properties testing is carried out to assess the strength, elasticity, and toughness of the steel coils. This includes conducting tests for tensile strength, yield strength, and elongation measurements. These evaluations help determine if the coils are suitable for specific applications and if they meet the required performance standards. Furthermore, chemical composition analysis is performed to validate the elemental composition of the steel coils. This analysis is crucial as it ensures that the steel meets the required chemical requirements, including the presence of specific alloying elements. Deviations in composition can significantly affect the overall quality and performance of the coils. Corrosion resistance testing is also of great importance, particularly for coils used in environments with high humidity or exposure to corrosive substances. Coils are subjected to simulated real-world conditions, such as salt spray or humidity chambers, to evaluate their resistance to corrosion. Lastly, various non-destructive testing techniques, including ultrasonic testing and magnetic particle inspection, are employed to detect internal defects or discontinuities in the steel coils. These tests assist in identifying any hidden flaws that could compromise the structural integrity of the coils. In summary, steel coils undergo a comprehensive array of tests to ensure adherence to industry standards. By conducting these tests, manufacturers can guarantee that the coils meet the required specifications, thereby providing customers with high-quality products tailored to their specific needs.

Q:does regular steel rust? or is it all the same.: There are dozens of types of steels, some stainless and some not. They differ a lot in their chemical composition and in how they're made (especially heat treating methods). They all vary in their strength, working properties and corrosion resistance. Regular steel (technically carbon steel--mostly iron, with a little bit of carbon) rusts quite badly if unprotected and in the right environmental conditions i.e. humidity/moisture. The iron in regular steel reacts with oxygen to form iron oxide--the orange/red stuff we call rust. Iron oxide is a loose and porous material which provides no protection to the underlying steel, which is why rusted regular steel will continue to rust. Stainless steel, in addition to containing iron and carbon, contains chromium as a component--and it's the chromium that is important for corrosion protection. To be fair, even stainless steel rusts but what happens is that it's the chromium that reacts with oxygen to create a microscopically-thin layer of chromium oxide. This layer is very tough and actually protects the uncorroded steel, preventing further corrosion. Broadly speaking, the higher the chromium content, the more corrosion resistant the stainless steel.

Q:What are the challenges in coil recoiling?: Coil recoiling, also known as coil winding, can pose several challenges depending on the specific application and requirements. Some of the common challenges in coil recoiling include: 1. Precision and accuracy: Achieving precise and accurate winding is crucial for optimal coil performance. Maintaining consistent tension throughout the winding process, ensuring proper alignment, and controlling the speed are essential to avoid variations in the coil's electrical properties. 2. Wire management: Handling the wire during the recoiling process can be challenging. The wire may be delicate, prone to tangling, or have specific handling requirements, such as being magnetically or thermally sensitive. Proper wire management techniques, such as tension control, wire guide systems, and spooling mechanisms, need to be employed to prevent wire damage and ensure uniform winding. 3. Space constraints: In many applications, coils need to fit within specific space limitations. Designing and winding coils to fit compact spaces can be challenging, especially when considering the required number of turns, wire size, insulation, and any additional components or structures that may need to be incorporated. 4. Material selection: Selecting the appropriate wire and insulation material is crucial for coil performance and longevity. Factors such as electrical conductivity, thermal properties, mechanical strength, and chemical resistance need to be considered to ensure the coil can withstand the operating conditions and environmental factors it will be exposed to. 5. Heat dissipation: Coils often generate heat during operation, especially in high-power applications. Efficient heat dissipation is essential to prevent overheating and ensure the longevity of the coil. Designing the coil with proper ventilation, utilizing cooling mechanisms, or integrating heat sinks are some of the techniques used to address this challenge. 6. Quality control: Ensuring consistent quality in coil recoiling can be challenging due to factors such as variations in wire properties, operator skill, equipment calibration, and environmental conditions. Implementing robust quality control measures, such as conducting regular inspections, performing electrical tests, and monitoring process parameters, is necessary to maintain consistent coil performance. Overall, coil recoiling requires attention to detail, precision, and adherence to specific requirements to overcome the challenges and produce high-quality coils that meet the desired performance criteria.

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