3A21 aluminum plate is an Al-Mn series aluminum alloy, which belongs to the weldable LF21 aluminum alloy and is known for its excellent anti-rust properties.
3A21 aluminum plate is an Al-Mn series aluminum alloy, which belongs to the weldable LF21 aluminum alloy and is known for its excellent anti-rust properties. The material is not very strong, only slightly higher than industrial pure aluminum, and cannot be strengthened by heat treatment, so cold working is usually used to improve mechanical properties. 3A21 aluminum plate has high plasticity in the annealed state and is suitable for applications requiring high plasticity and good weldability, such as aerospace, equipment manufacturing, automobile industry, and transportation.
The chemical composition of 3A21 is basically the same as 3003 and they can be used interchangeably in most applications.
Chemical composition(%) | ||||||||
3A21 | Si | Fe | Cu | Mn | Zn | Other(single) | Other(all) | Al |
0.6 | 0.7 | 0.05-0.20 | 1.0-1.5 | 0.1 | 0.1 | 0.2 | margin |
Fuel tanks, gasoline or lubricating oil pipes.
Liquid containers, cookers.
Light-load components, electronic foils, container foils.
Heat exchangers, brazed plate heat exchangers.
Brazed plates.
Washing machine drums.
Aluminum roofs, pattern panels, sound insulation panels, vehicle body skins.
Traffic signs.
3A21 aluminum plate has good welding performance and can be connected by a variety of welding methods, including argon arc welding (TIG welding), MIG welding, etc. Its welding characteristics are mainly reflected in the following aspects:
In general, 3A21 aluminum plate is an aluminum alloy suitable for engineering and manufacturing industries, with excellent welding performance, which can meet the needs of various industrial applications.
There are several ways to judge the quality of 3A21 aluminum plate:
Appearance inspection:
Check whether the surface of the aluminum plate is flat and smooth, and whether there are obvious scratches, dents, bubbles and other defects.
Dimension measurement:
Use tools such as calipers and electronic scales to measure the thickness, length and width of the aluminum plate to ensure that it meets the standard specifications.
Chemical composition detection:
Detect the chemical composition of aluminum through spectral analysis or chemical sampling to ensure that it meets the composition requirements of 3A21 alloy.
Mechanical property testing:
Conduct tensile tests, hardness tests, etc. to verify whether its mechanical properties such as tensile strength, yield strength and elongation meet the specifications.
Welding performance test:
If the aluminum plate is used for welding applications, a welding test can be performed to check the strength and appearance of the weld to ensure that its welding performance is excellent.
Supplier qualifications:
Choose a reputable supplier and check its quality management system certification (such as ISO 9001) and other relevant certifications.
The above methods can be used to more comprehensively evaluate the quality of 3A21 aluminum plate.
5005 aluminum coil refers to the 5005 aluminum plate after being cast and rolled and then processed into a coil shape by drawing and bending,
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Latest Comments
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Hello, Would you be so kind to offer item as follows: Coil 0,6х1250 (1000)mm EN AW-3105 5tons
Hello, Can you offer me Aluminium plates? Actally I need: 110mm x 1700mm x 1700mm 5083 H111 - 21 pcs Next year planed is 177 pcs
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