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

Ref Price:

Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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 various uses of aluminum alloys within the construction industry.: Aluminum alloys are widely used in construction due to their strength, light weight, and corrosion resistance. Some applications include: 1) Structural framing for buildings and bridges, leveraging their high strength-to-weight ratio. 2) Window and door frames, benefiting from their durability and low maintenance. 3) Roofing materials, as they are lightweight and resistant to weathering. 4) Facade cladding, for aesthetic appeal and resistance to environmental damage. 5) Electrical wiring and conduits, due to their excellent electrical conductivity and safety. 6) Scaffolding, as they are lightweight and easy to assemble. 7) Solar panel frames, taking advantage of their lightweight and recyclable properties. These applications highlight aluminum alloys' versatility and importance in modern construction.

Q: This question asks about the chemical reactions of aluminum with acids and alkalis under various conditions.: Aluminum reacts differently with acids and alkalis depending on the specific environment. In the presence of acids, such as hydrochloric or sulfuric acid, aluminum undergoes a redox reaction where it loses electrons and forms aluminum ions (Al^3+). The reaction can be represented as: 2Al + 6HCl 鈫?2AlCl鈧?+ 3H鈧? With alkalis, aluminum reacts to form aluminate ions and hydrogen gas. This reaction is represented as: 2Al + 2NaOH + 6H鈧侽鈫?2NaAl(OH)鈧?+ 3H鈧? The rate of these reactions can be influenced by factors such as temperature, concentration, and the presence of catalysts.

Q: Explain how aluminum influences the propagation of sound waves.: Aluminum has a high density and stiffness, which makes it an effective conductor of sound. When sound waves hit an aluminum surface, the vibrations are quickly transmitted through the material due to its low internal damping. This results in a clear and efficient transfer of sound energy. However, aluminum's high reflectivity can also lead to a significant amount of sound being reflected rather than absorbed, which can affect the acoustics in a space, potentially causing echoes or reducing sound absorption. Additionally, aluminum's conductivity can lead to a faster decay of sound within the material, impacting the duration and quality of sound transmission.

Q: What safety measures should be taken into account while handling or working with aluminum?: When working with aluminum, it's crucial to follow safety precautions to prevent injuries and health risks. Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a dust mask to protect against aluminum dust. Ensure good ventilation to avoid inhaling aluminum dust or fumes. Use proper tools and equipment to handle aluminum, as it can become sharp and cause cuts. Be cautious when welding or cutting aluminum, as it can produce harmful fumes and sparks. Store aluminum in a dry place to prevent it from reacting with moisture. Lastly, be aware of the fire hazard associated with aluminum dust and take necessary fire safety measures.

Q: Is it possible to use aluminum foil as a substitute for a non-stick surface when cooking eggs in a frying pan?: While it is technically possible to use aluminum foil to cook eggs in a frying pan, it is not recommended. Aluminum foil can stick to the eggs and make them difficult to remove without breaking. Additionally, aluminum foil can tear or puncture easily, leading to hot oil spills and potential safety hazards. It's better to use a non-stick pan or a well-seasoned cast iron pan for cooking eggs to ensure easy release and even cooking.

Q: Explain how the inclusion of copper impacts the characteristics of aluminum alloys.: The addition of copper to aluminum alloys significantly enhances their strength and hardness. Copper is one of the most effective alloying elements for aluminum, leading to the formation of a series of age-hardenable alloys known as the 2xxx series. These alloys, such as 2024, are characterized by their high strength-to-weight ratio and are often used in aerospace applications, structural components, and transportation equipment. The copper atoms in the aluminum matrix form precipitates that strengthen the alloy through a process called precipitation hardening. However, the addition of copper also reduces the alloy's ductility and corrosion resistance, necessitating careful control of the copper content and heat treatment processes to optimize the alloy's properties for specific applications.

Q: What are the differences between Aluminum Oxide and Aluminum Alloy in terms of their properties and applications?: Aluminum Oxide and Aluminum Alloy are distinct materials with different properties and uses. Aluminum Oxide, also known as alumina, is a ceramic material with a high melting point, hardness, and electrical insulation properties. It's used in abrasives, electronics, and as a refractory material. In contrast, Aluminum Alloys are composites of aluminum with other elements like copper, magnesium, or silicon, which enhance their strength, corrosion resistance, and malleability. They are widely used in construction, automotive, aerospace, and packaging due to their lightweight and durability.

Q: Is it possible to utilize recycled plastic or paper for manufacturing new products instead of sourcing new materials?: Yes, recycled plastic and paper can be used to create new products, reducing the need for new materials. This process not only conserves natural resources but also decreases waste in landfills. Recycled paper can be used to make new paper products, packaging, and even some types of construction materials. Similarly, recycled plastics can be repurposed into various products such as clothing, furniture, and new plastic items. However, it's important to note that the quality of recycled materials may vary, and not all plastics or paper products can be recycled effectively. The recycling process also requires energy, so it's crucial to balance the environmental benefits with the energy costs and potential for contamination during recycling.

Q: Is aluminum a material that can be utilized in medical or pharmaceutical applications?: Yes, aluminum is used in medicine and pharmaceuticals, primarily in the form of aluminum salts. It is used as an adjuvant in vaccines to enhance the body's immune response. Aluminum compounds are also used as antacids to neutralize stomach acid and in some medications as a buffering agent. However, its use is regulated due to potential health concerns, and it's important to note that aluminum is not used in direct contact with the body for extended periods due to its potential toxicity.

Q: This question asks for a comparison of the benefits and drawbacks of using aluminum as a material in construction projects.: Aluminum in construction offers several advantages, including its lightweight nature, which reduces structural load and facilitates easier transportation and installation. It is also highly resistant to corrosion, making it ideal for outdoor applications and in areas with harsh weather conditions. Aluminum's recyclability contributes to sustainability, and it has a high strength-to-weight ratio, enhancing structural integrity. However, it has some disadvantages, such as being a poor conductor of heat, which may require additional insulation. It can also be more expensive than traditional materials like steel or concrete, and it dents easily, necessitating careful handling and maintenance.

Send your message to us

*Email

*TEL

*Quantity

*Unit