Introduction to 1-9 series aluminum alloys

Views:351 Author:Site Editor Publish Time:2023-08-07 11:06:58 Orgin:Site

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A series

1060 1070 1100, etc

Features: With an aluminum content of over 99.00%, good conductivity, corrosion resistance, good welding performance, low strength, and non heat treatment strengthening. Due to the absence of other technical elements, the production process is relatively simple and the price is relatively cheap. Application range: High purity aluminum (with an aluminum content of over 99.9%) is mainly used for scientific experiments, chemical industry, and special purposes.

Secondary system

2017, 2024, etc

Features: Aluminum containing alloy with copper as the main alloying element. Manganese, magnesium, lead, and bismuth are also added to improve cutting performance (with a copper content between 3-5%).

For example, during the melting process of 2011 alloy, safety precautions should be taken (harmful gases may be generated). 2014 alloy is used in the aviation industry with high strength. The strength of 2017 alloy is slightly lower than that of 2014 alloy, but it is relatively easy to process. 2014 can be strengthened by heat treatment.

Disadvantage: Intergranular corrosion tends to be severe. Application scope: aviation industry (2014 alloy), screw (2011 alloy), and industries with higher usage temperatures (2017 alloy).

Tertiary system

3003, 3004, 3005, etc

Characteristics: Aluminum alloy with a content of 1.0-1.5% as the main alloying element. It cannot be strengthened by heat treatment, has good corrosion resistance, good welding performance, and good plasticity (similar to super aluminum alloy).

Disadvantages: Low strength, but strength can be strengthened through cold work hardening, and coarse grains are easily produced during annealing.

Application scope: seamless oil guide pipes (3003 alloy) and easy to open cans (3004 alloy) used on aircraft.

Four Systems

4004 4032 4043

4xxx series aluminum alloy is an aluminum alloy with silicon as the main alloying element (with a silicon content between 4.5 and 6).

Most of these alloys belong to heat treated non strengthening aluminum alloys. Only alloys made of copper, magnesium, and nickel, as well as alloys that absorb certain elements after welding heat treated strengthening alloys, can be strengthened through heat treatment.

Due to its high silicon content, low melting point, good melt fluidity, easy shrinkage, and no brittleness in the final product, this series of alloys is mainly used for manufacturing additive materials for aluminum alloy welding, such as brazing plates, welding rods, and welding wires.

In addition, due to the good wear resistance and high-temperature performance of some of the alloys in this series, they are also used to manufacture pistons and heat-resistant parts. Alloys containing about 5% silicon turn black gray after anodizing and coloring, making them suitable for use as building materials and manufacturing decorative parts.

Five Systems

5052 5083 5754

Characteristics: Mainly composed of magnesium (with a magnesium content between 3-5%).

Low density, high tensile strength, high elongation, good welding performance, good fatigue strength, and cannot be strengthened by heat treatment. Only cold processing can improve strength.

Application scope: handle of lawn mower, aircraft fuel tank duct, tank material, bulletproof vest, etc. Generally, shoe racks at or above the mid range are either 6-series or 7-series.

Six Systems

6061 6063

Features: Mainly composed of magnesium and silicon.

Mg2Si is the main strengthening phase and is currently the most widely used alloy.

6063 and 6061 are the most commonly used, while other 6082, 6160, 6125, 6262, 6060, 6005, 6463.6063, 6060, and 6463 have lower strength in the 6 series. The strength of 6262, 6005, 6082, and 6061 is relatively high in the 6 series. The shelf at the middle end of Cyclone 2 is 6061.

Characteristics: Medium strength, good corrosion resistance, good welding performance, good process performance (easy to extrude and form), good oxidation coloring performance.

Application scope: Transportation vehicles (such as car luggage racks, doors, windows, car bodies, heat sinks, compartment shells, phone cases, etc.)

Seven Systems

7050 7075

。Features: Mainly zinc, but sometimes a small amount of magnesium and copper are added. Among them, superhard aluminum alloy contains zinc, lead, magnesium, and copper alloys with a hardness similar to that of steel.

The extrusion speed is slower than that of the 6 series alloy, and the welding performance is good.

7005 and 7075 are the highest grades in the 7 series and can be heat treated for strengthening.

Application scope: aviation (load-bearing components of aircraft, landing gear), rockets, propellers, and aerospace spacecraft.

Eight Systems

Other alloys

8011 (rarely made of aluminum plate, usually used as aluminum foil)

Usage: Aluminum foil for air conditioning, etc.

Nine Series

Spare alloy