Extruded ASTM B221 2014A T4 Aluminum alloy bar
Hardness: strength is the product design must be considered an important factor, into the aluminum alloy components as a component, should be based on the pressure to choose the appropriate alloy. Pure aluminum strength is low, and 2 series and 7 series heat treatment alloy degree, hardness and strength have a certain relationship.
Corrosion resistance: corrosion resistance, including chemical corrosion, stress corrosion resistance and other properties. In general, 1 series of pure aluminum corrosion resistance is excellent, 5 series of good performance, followed by 3 series and 6 series, 2 series and 7 series is poor. The principle of corrosion resistance should be determined according to its use. High-strength alloy corrosion environment, you must use a variety of anti-corrosion composite materials.
Machinability: Processing performance Packet insert forming performance and cutting performance. Because the formability and the state, in the choice of aluminum excellent number, the need to consider the strength range of various states, usually high strength material is not easy to shape. If the aluminum material is to be bent, stretched and deepened, it is excellent in formability of the annealed state material. On the other hand, the fineness of the heat treatment state material is poor. The machinability of the aluminum alloy is poor, and the machinability of the aluminum alloy is important for molds, mechanical parts, etc., and the machinability of the aluminum alloy is important for molds, mechanical parts, etc. Considerations.
Weldability: Most of the aluminum alloy weldability are no problem, especially part of the 5 series of aluminum alloy, is designed for welding considerations, the relative face, part of the 2 series and 7 series of aluminum alloy is difficult to weld.
Decorative properties: aluminum used in the decoration or some specific occasions, the need for its surface anodizing, painting and other processing, in order to obtain the appropriate color and surface structure, then its decorative should be considered, and generally Words, good corrosion resistance of the material, the anode treatment performance, surface treatment performance, coating performance are very good.
chemical component%
| Ti |
Ni |
Mg |
Cu |
Fe |
Zn |
Mn |
Si |
Al |
| ≤0.15 |
≤0.10 |
0.4~0.8 |
3.9~4.8 |
0.0~0.7 |
≤0.30 |
0.40~1.0 |
0.6~1.2 |
reste |
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