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: Is it possible to create jewelry using pure aluminum?: Yes, pure aluminum can be used to make jewelry, but it's not commonly used for fine jewelry due to its lower value and potential for oxidation. While it is lightweight and affordable, it lacks the luster and durability of precious metals like gold, silver, or platinum. Aluminum can tarnish and may cause allergic reactions in some individuals. It is more commonly used in costume jewelry or for specific designs where its properties are advantageous.

Q: What other applications can aluminum be utilized for in the manufacturing industry besides common uses?: Aluminum has a wide range of alternative uses in manufacturing due to its lightweight, corrosion resistance, and strength. It is used in the automotive industry for car parts to reduce weight and improve fuel efficiency. In aerospace, aluminum is crucial for aircraft construction due to its strength-to-weight ratio. It's also used in the construction of buildings for window frames, roofing, and facades. In the packaging industry, aluminum is used for food and beverage cans, as well as pharmaceutical blister packs. Additionally, aluminum is utilized in electrical components like wiring and transformers due to its excellent conductivity. It's also found in various consumer goods, such as bicycles, sports equipment, and electronic devices.

Q: This question asks about the potential health hazards that can result from exposure to aluminum.: Aluminum exposure has been associated with several health risks, although the scientific consensus is not entirely clear due to varying study results. Some potential health risks include neurological disorders such as Alzheimer's disease, although this link is still debated. Aluminum may also contribute to bone diseases, as it can interfere with calcium absorption. There are concerns about aluminum's role in kidney dysfunction and possible links to certain types of cancer. However, it's important to note that the human body naturally excretes aluminum, and only a small fraction of ingested aluminum is absorbed. More research is needed to establish definitive links between aluminum exposure and health outcomes.

Q: Describe the characteristics and properties of aluminum oxide.: Aluminum oxide, also known as alumina, is a compound of aluminum and oxygen with the chemical formula Al2O3. It is a white solid that is insoluble in water but soluble in acid and base. It has a high melting point (over 2000掳C), high hardness, and is chemically inert. Aluminum oxide is also a good electrical insulator and has a high refractive index. It is used in various applications, including abrasives, refractory materials, and as a catalyst in chemical processes. Additionally, it is biocompatible and is used in medical implants and dental materials.

Q: This question asks for an explanation of the environmental effects caused by the process of smelting aluminum.: The environmental impact of smelting aluminum is significant. It is an energy-intensive process that contributes to greenhouse gas emissions, primarily due to the high electricity consumption required for the Hall-H茅roult process. This process also generates perfluorocarbons (PFCs), which are potent greenhouse gases. Additionally, the production of aluminum releases particulate matter and sulfur dioxide, contributing to air pollution. The extraction of bauxite, the primary source of aluminum, can lead to deforestation and habitat destruction. Moreover, the waste products, such as red mud, can cause water pollution if not properly managed. Overall, the smelting of aluminum has considerable environmental implications, necessitating the development of more sustainable practices in the industry.

Q: What is the primary application of aluminum in various industries and everyday life?: Aluminum is most commonly used in the manufacturing of cans and packaging materials due to its lightweight, corrosion resistance, and recyclability. It is also extensively used in construction for window frames, roofing, and facades. In transportation, aluminum is a key material in the production of vehicles, particularly in the aerospace industry for aircraft and automotive industry for car bodies, due to its strength-to-weight ratio. Additionally, it is used in electrical components and electronics due to its good conductivity and malleability.

Q: What measures should be taken to ensure safety while working with aluminum?: When working with aluminum, it's important to follow safety precautions. Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a dust mask to prevent inhalation of aluminum dust. Ensure good ventilation to avoid the buildup of fumes. Use proper tools and equipment to handle aluminum, as it can become sharp and cause cuts. Be cautious of the heat generated during cutting or welding, as aluminum conducts heat quickly and can cause burns. Store aluminum in a dry place to prevent it from reacting with moisture, which can cause it to corrode. Lastly, be aware of the fire hazard associated with aluminum dust and take necessary fire prevention measures.

Q: Is there an alternative method for recycling aluminum besides the conventional process?: Yes, aluminum can be recycled using different processes. While the conventional process involves melting and recasting, alternative methods include mechanical recycling, which involves shredding and reusing aluminum without melting, and chemical recycling, which breaks down aluminum into its base elements and reassembles them into new products. These methods can be more energy-efficient and environmentally friendly, depending on the specific circumstances and technologies used.

Q: This question asks about the general environmental impact of using aluminum.: The use of aluminum has both positive and negative environmental impacts. On the positive side, aluminum is lightweight and durable, which can reduce the energy needed for transportation. It is also recyclable, and recycling aluminum saves up to 95% of the energy required to produce new aluminum from raw materials. However, on the negative side, the production of aluminum is energy-intensive and generates significant greenhouse gas emissions. The process also produces toxic byproducts, such as fluorides, which can contaminate water and soil. Additionally, the mining of bauxite, the primary source of aluminum, can lead to deforestation and habitat destruction. Overall, while aluminum has its benefits, its production and use have substantial environmental consequences that need to be managed responsibly.

Q: This question asks for examples of how aluminum is used in architectural designs.: Aluminum is a versatile material in architecture due to its strength, light weight, and resistance to corrosion. Some examples include the Empire State Building's spire, which was originally clad in aluminum, and the Petronas Twin Towers in Kuala Lumpur, known for their aluminum and glass facade. The Guggenheim Museum in Bilbao features an aluminum-clad exterior, and the Beijing National Stadium, also known as the Bird's Nest, utilizes aluminum for its intricate lattice structure. Additionally, aluminum is commonly used in curtain walls, window frames, and roofing systems due to its durability and sustainability.

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