Aluminum Cold Rolled Coil for Roofing from China

Aluminum Cold Rolled Coil for Roofing from China System 1

Aluminum Cold Rolled Coil for Roofing from China System 2

Aluminum Cold Rolled Coil for Roofing from China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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Series:	1100 etc.
Series:	3003 3004 3005 etc.
Series:	5006, 5052
Series:	8011 etc.

Plate Thickness	0.1mm, 0.12mm,0.15mm,0.20mm,0.25mm,0.28mm,0.3mm,0.35mm,0.38mm, 0.4mm,0.5mm, 0.53mm, 0.58mm,0.68mm,0.7omm,0.73mm,0.75mm, 0.90mm, 1mm, 1.2mm
Coil Thickness	0.1mm, 0.12mm,0.15mm,0.20mm,0.25mm,0.28mm,0.3mm,0.35mm,0.38mm, 0.4mm,0.5mm, 0.53mm, 0.58mm,0.68mm,0.7omm,0.73mm,0.75mm, 0.90mm, 1mm, 1.2mm

Item	Test Item	Standard	National Standard	Test Result
1	Color Difference	ECCA T3	Delter E≤2.0	Delter E≤1.0
2	Gloss Difference	ECCA T2	≤10	≤5
3	Coating Thickness	ECCA T1	Two coating Min 23 mircron	≥25 micron
Three coating Min 30 micron	≥34 micron
4	Pencil Hardness	ASTM D3363	≥HB	HB
5	T-Bend	ASTM D4145	≤2T	≤2T
6	Adhesion	ASTM D3359	Grade 0	Grade 0
7	Impact	ASTM D2794	≤50kg.cm	≤50kg.cm
8	Boiling Water Resistance	GB/T17748	2hr no change	4hr no change
9	Slovent Resistance	ASTM D2248	200 times paint remaining	500 times paint remaining
10	Acidity Resistance	ASTM D1308	5% HCL 24hrs no change	no change
11	Alkali Resistance	ASTM D1308	5% NAOH 24hrs Delter E≤2.0	no change
12	Nitric Acid Resistance	AAMA620	Delter E<5.0	Delter E<5.0
13	Oil Resistance	ASTM D1308	20# oil 24hrs no change	no change
14	Salt Spray Resistance	ASTM B117	4000hrs≤Grade 1	no change
15	Abrasion Resistance	ASTM D968	≥5L/Micron	≥5L/Micron
16	Contamination Resistance	GB/T9780	≤5%	<5%
17	Color Resistance	GB/T16259	4000hrs Delter E≤4.0	4000hrs Delter E≤3.0
18	Gloss Losing Level	4000hrs Delter E≤Grade 2	4000hrs Delter E≤Grade 2
19	Chalking	4000hrs no change	4000hrs no change

Company Information

CNBM is in aluminum foil, coil, sheet, plate for more than 10 years, thus we have rich product, technology and market experiences. With the world’s top aluminum processing equipments, experienced technical staff, cooperative and professional sales team, and the enterprise concept of responsibility and sharing, we have been widely focused since the day set up, and has gained high praise from customers home and abroad until now.

Cold Rolled Aluminum Coil for Roofing from China

Our Services

CNBM is ready to assist with any product needs or enquiries. We value our customers and welcome your thoughts and feedback.

Please send comments, questions and requests through alibaba or our personal contact so they can be directed to the appropriate department.

About samples: Based on our company rules, a few samples are willing to be offered, but clients are requested to pay freight.

Working time:9:00~17:30(GM+8) from Monday to Friday, but you also can contact with us via personal contact information during our leisure time. We will try our best to offer you service in 24*7 hours.

Any quality, quantity problems are occured, response you will get in time not over more 24 hours after we recieve your complains. Problems will be solved in one week throught friendly negotiation.

Cold Rolled Aluminum Coil for Roofing from China

Q: This question asks about the typical issues that arise due to the corrosion of aluminum.: Common problems with aluminum corrosion include loss of structural integrity, which can compromise the safety and performance of aluminum components. Corrosion can lead to a decrease in mechanical strength, increased brittleness, and a reduction in the electrical and thermal conductivity of aluminum. Additionally, aesthetic issues such as discoloration and pitting can occur, affecting the appearance of aluminum surfaces. Environmental factors and improper handling can accelerate corrosion, leading to costly repairs or replacements.

Q: This question asks for a comparison between aluminum and other metals, highlighting their distinct properties and characteristics.: Aluminum is a lightweight, corrosion-resistant metal with a low density, making it ideal for applications requiring strength without excessive weight. It is also a good conductor of heat and electricity. Unlike other metals like iron or copper, aluminum is not magnetic and has a lower melting point. It is also more abundant and cheaper to produce than many other metals, which makes it widely used in industries such as construction, transportation, and packaging. Aluminum's reactivity means it forms a protective oxide layer when exposed to air, which prevents further corrosion. In contrast, metals like stainless steel offer greater strength and resistance to corrosion, while copper has superior electrical conductivity. Each metal has its unique properties that make it suitable for specific applications.

Q: This question asks about the potential dangers associated with exposure to aluminum through consumption of food and drinking water.: Aluminum exposure in food and water can pose several health risks. Chronic exposure may lead to cognitive dysfunction and Alzheimer's disease, although this link is still debated. It can also cause bone disease by leaching calcium, potentially leading to osteomalacia and osteoporosis. In the nervous system, aluminum can cause neurotoxicity, leading to symptoms like memory loss and impaired learning. Additionally, aluminum may accumulate in the brain, potentially contributing to neurodegenerative conditions. It's important to note that the extent of these risks can vary based on individual susceptibility and the level of exposure.

Q: I would like to ask where there is a need for these minerals? How much is it per ton?: This kind of silica is good, and the price is about 100 yuan / ton.

Q: This question asks about the typical applications of aluminum pipes in various industries and settings.: Aluminum pipes are commonly used in a variety of applications due to their lightweight, corrosion resistance, and high thermal conductivity. They are extensively used in the automotive industry for parts like radiators and heat exchangers. In construction, aluminum pipes are utilized for heating, ventilation, and air conditioning (HVAC) systems. They are also used in the beverage industry for conveying and cooling liquids, as well as in the aerospace industry for fuel and hydraulic lines due to their strength-to-weight ratio. Additionally, aluminum pipes are found in industrial settings for compressed air and gas lines, and in marine applications for fuel and water systems.

Q: Is it safe to use aluminum for making containers for food and beverages?: Yes, aluminum can be used to make containers for food and drink. Aluminum is a common material for food packaging due to its lightweight, durability, and resistance to corrosion. It forms a protective oxide layer that prevents the metal from interacting with the food, ensuring safety. However, it's important to note that aluminum containers should not be used for storing acidic foods or beverages for extended periods, as this can lead to leaching of aluminum into the food. Additionally, some studies suggest a potential link between aluminum and neurological disorders, though this is still a subject of debate.

Q: Is it possible to employ methods for recycling aluminum that are less harmful to the environment?: Yes, there are less harmful methods for recycling aluminum. One such method is mechanical recycling, which involves shredding and melting aluminum without the need for chemical processing, reducing environmental impact. Additionally, promoting a circular economy by designing products for disassembly and recycling can minimize waste. Encouraging consumer participation in recycling programs and improving recycling technology also contribute to more sustainable aluminum recycling practices.

Q: Is it possible to utilize aluminum in car manufacturing to enhance fuel efficiency?: Yes, using aluminum in car manufacturing can contribute to increased fuel efficiency. Aluminum is lighter than traditional steel, which can reduce the overall weight of a vehicle. A lighter car requires less energy to move, which can lead to better fuel economy. Additionally, aluminum has good strength-to-weight ratio, allowing for a strong yet lighter structure. However, it's important to note that while aluminum can enhance fuel efficiency, it also has higher manufacturing costs and may not be as recyclable as steel.

Q: This question asks for examples of alloys that include aluminum as one of their components.: Aluminum is a versatile metal that forms many alloys, enhancing properties like strength, corrosion resistance, and electrical conductivity. Some common aluminum alloys include: 1. 6061, used in aircraft structures and automotive parts due to its good mechanical properties and machinability. 2. 2024, known as 'Alclad', is strong and used in aircraft structures. 3. 7075, one of the strongest aluminum alloys, used in aerospace and military applications. 4. 3003, used for cooking utensils and chemical equipment due to its good corrosion resistance. 5. 5052, used in marine applications and food processing equipment for its excellent corrosion resistance. These alloys are widely used in various industries due to their unique properties.

Q: What are the methods to decrease the expenses associated with recycling aluminum?: Yes, there are several ways to reduce the cost of recycling aluminum. One effective method is to improve collection efficiency by consolidating recycling programs and using smart waste management systems. Another approach is to invest in advanced recycling technologies that can sort and process materials more efficiently. Additionally, increasing consumer awareness about the importance of recycling and encouraging participation can lead to higher volumes of recycled materials, which can lower per-unit processing costs. Lastly, government incentives and subsidies can help offset the costs of recycling operations, making it more economically viable.

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