| Aluminum Coil parameters

Product	Aluminum Coil
Alloy	1050.1060.1100.1070.3003.3004.3105.5052.5754.5083.6061.6063.6062.7075.8011
Temper	H12,H14,H16,H24,H26,H32,O,H112,T3,T6,T4,T651,ect.
Surface	Mill finish, color coated,embossed, engraving,checkered
Thickness	0.1-6mm
Width	10-2600mm
Inner core	76/150/405/505mm
Packing	Wooden pallet,Eye to eye,Eye to sky
Payment	T/T,L/C 100% at sight
MOQ	normally 5tons ,special require need discuss
Delivery time	1-3days for spot goods, 10-15days for normal size,15-25days for special size
Surface Quality	Be free from Oil Stain, Dent, Inclusion, Scratches, Stain, Oxide Discoloration, Breaks, Corrosion, Roll Marks, Dirt Streaks and other defect which will interfere with use

| Definition

Aluminum coils are processed by casting and rolling mills through rolling, stretching, bending, and straightening.Aluminum coils are widely used in electronics, packaging, construction, machinery, and other fields. There are many aluminum coil production enterprises in China. According to the different metal elements contained in aluminum coils, aluminum coils can be roughly divided into 9 categories, which can be divided into 9 series. Below, we will gradually introduce them in general.

1000 series

The 1000 series aluminum coil, also known as pure aluminum coil, belongs to the series with the highest aluminum content among all series. The purity can reach over 99.00%. Due to the absence of other technological elements, the production process is relatively simple and the price is relatively cheap, making it the most commonly used series in conventional industry. The majority of products circulating in the market are the 1050 and 1060 series. The minimum aluminum content of the 1000 series aluminum coil is determined based on the last two Arabic numerals. For example, the last two Arabic numerals of the 1050 series are 50. According to the international brand naming principle, the aluminum content must reach 99.5% or above as a qualified product. The aluminum alloy technical standard (GB/T3880-2006) in our country also clearly stipulates that the aluminum content of 1050 should reach 99.5%. Similarly, the aluminum content of 1060 series aluminum coils must reach 99.6% or above.

2A16 (LY16) 2A06 (LY6) 2000 series

The characteristic of the 2A16 (LY16) 2A06 (LY6) 2000 series aluminum coil is its high hardness, with the highest copper content, approximately 3-5%.

3003, 3003, 3A21 series

Representing 3003, 3003, 3A21 as the main. Also known as anti rust aluminum coil, China’s 3000 series aluminum coil production process is relatively excellent. The 3000 series aluminum coil is mainly composed of manganese element. The content ranges from 1.0 to 1.5. It is a series with good rust prevention function. Commonly used in humid environments such as air conditioning, refrigerators, and car bottoms, with a price higher than the 1000 series, it is a commonly used alloy series.

4A01 4000 series

The aluminum coils represented by the 4A01 4000 series belong to the series with higher silicon content. The silicon content is usually between 4.5% and 6.0%. Belonging to building materials, mechanical parts, forging materials, welding materials; Low melting point, good corrosion resistance Product description: It has the characteristics of heat resistance and wear resistance.

5052.5005.5083.5A05 series

Representing the 5052.5005.5083.5A05 series. The 5000 series aluminum coil is a commonly used alloy aluminum coil series, with magnesium as the main element and a magnesium content between 3-5%. Also known as aluminum magnesium alloy. The main characteristics are low density, high tensile strength, and high elongation. Aluminum magnesium alloy has a lower weight than other series under the same area, so it is commonly used in aviation, such as aircraft fuel tanks. It is also widely used in conventional industries. The processing technology is continuous casting and rolling, which belongs to the hot-rolled aluminum coil series and can be used for oxidation deep processing. The 5000 series aluminum coil is one of the more mature aluminum coil series in China.

6061 series

6061 mainly contains two elements, magnesium and silicon, thus focusing on the advantages of the 4000 and 5000 series. 6061 is a cold treated aluminum forging product suitable for applications with high requirements for corrosion resistance and oxidation resistance. Good usability, excellent interface characteristics, easy coating, and good processability. Can be used on low-pressure weapons and aircraft joints.

The general characteristics of 6061 include excellent interface features, easy coating, high strength, good usability, and strong corrosion resistance.

Typical uses of 6061 aluminum include aircraft parts, camera parts, couplers, ship parts and hardware, electronic parts and connectors, decorative or various hardware, hinge heads, magnetic heads, brake pistons, hydraulic pistons, electrical accessories, valves and valve parts.

7075 series

Representative 7075 mainly contains zinc element. It also belongs to the aviation series and is an aluminum magnesium zinc copper alloy that can be heat treated. It is a superhard aluminum alloy with good wear resistance. The 7075 aluminum coil is stress relieved and will not deform or warp after processing. All ultra large and ultra thick 7075 aluminum coils are detected by ultrasonic waves, ensuring no sand holes or impurities. The high thermal conductivity of the 7075 aluminum coil can shorten the forming time and improve work efficiency. The main feature is the high hardness of 7075, which is a high-strength aluminum alloy commonly used in the manufacturing of aircraft structures and futures. It requires high stress structural components and mold manufacturing with high strength and strong corrosion resistance

8011 series

The more commonly used one is that the 8011 belongs to other series. Aluminum coils, mainly used as bottle caps, are also used in radiators, with most applications being aluminum foil.

| Aluminum product Usage

| Main advantages of aluminum alloy material

• Lightweight and soft. The density of aluminum is 2171 g/cm3, which is about one-third of the density of steel; The Young’s modulus is also about one-third of that of steel.
• Good strength. The tensile strength of pure aluminum is about 80 MN/m2, which is one-fifth of that of low-carbon steel. But after heat treatment and alloying strengthening, it can reach the corresponding strength value of low-carbon steel.
• Good corrosion resistance. One of the characteristics of aluminum alloy is that when it comes into contact with air, a dense oxide film forms on the surface, which can prevent corrosion and therefore has good corrosion resistance. If the aluminum oxide film treatment method is applied to it again, it can comprehensively prevent corrosion.
• Good processing performance. The extrusion performance of railway vehicle profiles is good, and secondary machining and bending processing are also relatively easy.
• Easy to regenerate. Aluminum has a low melting point (660 ℃) and is easy to regenerate. Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automotive, mechanical manufacturing, shipbuilding, and chemical industries. The rapid development of industrial economy has led to an increasing demand for aluminum alloy welded structural components, which has led to in-depth research on the weldability of aluminum alloys.

Compared with other metal materials, aluminum and aluminum alloys have the following characteristics:

• Low density. The density of aluminum and aluminum alloys is close to 2.7g/, about one-third of that of iron or copper.
• High strength aluminum and aluminum alloys have high strength. After a certain degree of cold processing, the strength of the matrix can be strengthened, and some grades of aluminum alloys can also be strengthened through heat treatment.
• Aluminum has good conductivity and thermal conductivity, second only to silver, copper, and gold.
• The surface of aluminum with good corrosion resistance is prone to naturally produce a dense and sturdy AL2O3 protective film, which can effectively protect the substrate from corrosion. By artificial anodizing and coloring, cast aluminum alloys with good casting performance or deformed aluminum alloys with good processing plasticity can be obtained.
• After adding a certain amount of alloy elements to the easy processing, cast aluminum alloys with good casting performance or deformed aluminum alloys with good processing plasticity can be obtained.

| process flow diagram

| Aluminum Coil sheet production flow chart

Casting

The purpose is to make casting components and meet the requirements of high purity alloy melt, and create favorable conditions for the casting of various shapes.

Several key parameters in the process of casting:

1 the temperature need generally set at 1050 C  when smelting, the temperature of material need under monitoring,  metal temperature need control less than 770 DEG C

2 at around 735 DEG C, worker need slag operation,  the temperature is favorable to the separation of slag and liquid.

3 generally need twice refining ,one refining way is solid refining agent, the other way using gas refining method.

4 after the general 30min-1h inverted furnace  ,worker need to timely casting, otherwise worker need to re refining

5 During casting process ,worker need to continue to join Ai-Ti-B wire to refine grain

Hot-rolling

Hot rolling can improve the processing performance of metal and alloy, reduce or eliminate the casting defects.

Cast-rolling mill