1 series
1060 1070 1100 etc.
Features: containing more than 99.00% aluminum, good conductivity, good corrosion resistance, good welding performance, low strength, not heat treatment strengthening. Because it does not contain other technical elements, the production process is relatively simple, the price is relatively cheap.
Application: High purity aluminum (containing more than 99.9% aluminum) is mainly used in scientific experiments, chemical industry and special purposes.
2 series
2017 2024 etc.
Characteristics: Aluminum alloys with copper as the main alloying element. (Copper content between 3-5%) Manganese, magnesium, lead and indium are also added to improve cutting properties.
For example: 2011 alloy, pay attention to safety protection in the smelting process (harmful gas will be produced). 2014 alloy is used in the aviation industry, with high strength. 2017 alloy is a little lower than the strength of 2014 alloy, but it is easier to process. 2014 can be strengthened by heat treatment.
DisadvantagesDisadvantages: serious tendency to intergranular corrosion. Application: aviation industry (alloy 2014Disadvantages: serious tendency to intergranular corrosion. Application: aviation industry (alloy 2014), screws (alloy 2011) and industries with higher operating temperatures (alloy 2017).
2 series
3003 3004 3005 etc.
Characteristics: Aluminum alloy with manganese as the main alloying element (containing manganese content of 1.0-1.5%). It can not be strengthened by heat treatment, with good corrosion resistance, good welding performance and good plasticity (close to super aluminum alloy).
Disadvantages: low strength, but can be strengthened by cold hardening; easy to produce coarse grains when annealing.
Application: aircraft used in the oil seamless pipe (3003 alloy), can (3004 alloy).
4 series
4004 4032 4043
4× × × series aluminum alloys are aluminum alloys with silicon as the main alloying element (silicon content between 4.5-6).
Most of these alloys are heat-treated non-hardening aluminum alloys, only those containing copper, magnesium and nickel, and those that have been welded to heat-treated alloys and absorbed certain elements can be strengthened by heat treatment.
The alloy is mainly used for manufacturing aluminum alloy welding additives, such as brazing plates, welding electrodes and welding wires, due to its high silicon content, low melting point, good melt fluidity, easy to feed, and will not make the final product brittle.
In addition, some of the alloys have good wear resistance and high temperature performance, so theIn addition, some of the alloys have good wear resistance and high temperature performance, so they are also used to make pistons and heat-resistant parts. The alloy containing about 5% silicon is black and grey after anodizing, so it is suitable for building materials and making decorative parts.
5 series
5052 5083 5754
Features: Magnesium is the main component (between 3-5% magnesium content).
Low density, high tensile strength, high elongation, good welding performance, good fatigue strength, can not be heat treated to strengthen, only cold processing to improve strength.
Application: handle of lawn mower, duct of aircraft fuel tank, canned food, bulletproof vest, etc.
Generally, the shoe racks at the middle and above are basicly 6 series or 7 series.
6 series
6061 6063
Characteristics: Magnesium and silicon are the main components.
Mg2Si is the main strengthening phase, and is the most widely used alloy at present.
6063 and 6061 are mostly used, and the other 6082, 6160, 6125, 6262, 6060, 6005, 6463. 6063, 6060, 6463 have lower strength in the 6 series. 6262, 6005, 6082, 6061 have higher strength in the 6 series. The middle shelf of Cyclone 2 is 6061.
Characteristics: medium strength, good corrosion resistance, good welding performance, good process performance (easy extrusion forming) oxidation coloring performance.
Application: transportation (such as: car luggage rack, door, window, body, heat sinks, trunk shell, mobile phone shell, etc.)
7 series
7050 7075
Features: zinc, but sometimes a small amount of magnesium, copper. The superhard aluminum alloy is containing zinc, lead, magnesium and copper alloy close to the hardness of steel.
Slower extrusion speed than 6 series alloys, good welding performance.
7005 and 7075 are the highest grade of the 7 series and can be heat treated to strengthen.
Application: aviation (aircraft bearing components, landing gear), rockets, propellers, spacecraft.
8 series
Other alloys
8011 (rarely used as aluminum plate, generally used as aluminum foil)
Application: aluminum foil for air conditioners
9 series
spare alloy
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