It is light in weight(specific gravity is about 2.70g/cm3),and its density is only 1/3 of that of iron.
It has good formability (high ductility),and can be easily processed into rods, wires, sheets, foils and extrusions.
It has good corrosion resistance and its surface is easily oxidized to form a dense oxide layer, which blocks oxygen from causing further oxidation.
Thermal conductivity is "good"(silver>copper>gold>aluminum>iron),so it is widely used in electronic appliances and heat exchangers.
The conductivity is "good"(silver>copper>gold>aluminum>iron),the conductivity is 60% of copper, but the weight is only 1/3 of copper.
| Aluminum alloy | non-heat treated | 1xxx series-pure aluminum (Al ≧ 99.0 %) |
| 3xxxSeries - Aluminum Manganese (Al-Mn) | ||
| 4xxx Series - Aluminum Silicon (Al-Si) | ||
| 5xxx series - Aluminum-Magnesium (Al-Mg) | ||
| Heat-treated | 2xxx Series - Aluminum-Copper-Magnesium (Al-Cu-Mg) | |
| 6xxx Series - Aluminum Magnesium Silicon (Al-Mg-Si) | ||
| 7xxx Series - Aluminum Zinc Magnesium (Al-Zn-Mg) |
| If adding alloy elements is not enough to fully meet the requirements, cold working, water quenching, aging, annealing and other treatments are still needed to obtain the required strength and performance. These treatment processes are called "conditioning" and the result of conditioning is called "chain degree". Common chain degree symbols are . "F, O, H, T". | |||
| Chain Degree | Definition | Description | |
| F | The original state after manufacturing | Without special tempering such as work hardening or heat treatment,Properties acquired only through the manufacturing process. | |
| O | State after annealing | Completely recrystallized, with the best ductility. | |
| H | Work-hardened | Increased strength through work-hardening, regardless of whether or not additional accelerated heat treatment is performed to obtain the appropriate hardness. | |
| H1n | Hardened by cold working | ||
| H2n | After work hardening, it is then subjected to appropriate annealing treatment | ||
| H3n | After work hardening, stabilization treatment is applied. | ||
| T | T is heat treated to make it a stable temper other than F, O, and H. | Whether it is work hardened or not, it is heat treated and tempered to obtain a stable tempering degree. | |
| Alloy | Silico(Si) | Iron(Fe) | Copper(Cu) | Manganese(Mn) | Magnesium(Mg) | Chromium(Cr) | Zinc(Zn) | Titanium(Ti) | Aluminum(Al) |
| 1070 | 0.20 | 0.25 | 0.04 | 0.03 | 0.03 | - | 0.04 | 0.03 | 99.70 |
| 1050 | 0.25 | 0.40 | 0.05 | 0.05 | 0.05 | - | 0.05 | 0.03 | 99.50 |
| 1100 | 0.95(Si+Fe) | 0.05-0.20 | 0.05 | - | - | 0.10 | - | 99.00 | |
| 3003 | 0.60 | 0.70 | 0.05-0.20 | 1.00-1.50 | - | - | 0.10 | - | REM |
| 5052 | 0.25 | 0.40 | 0.10 | 0.10 | 2.20-2.80 | 0.15-0.35 | 0.10 | - | REM |
| 5657 | 0.08 | 0.10 | 0.10 | 0.03 | 0.60-1.00 | - | 0.05 | - | REM |
參考規範：AA、ASTM、JIS、CNS
單位：wt %
| Alloy | Temper | Tensile Strength, kgf/mm2 | Yield Strength, kgf/mm2 | Elongation, % | |||||
| min | max | min | min | ||||||
| 1070 | O | 5.61 | 9.69 | 1.53 | 20.0 | ||||
| H12 | 7.14 | 11.22 | 5.61 | 4.0 | |||||
| H14 | 8.67 | 12.24 | 6.63 | 3.0 | |||||
| H16 | 10.20 | 13.77 | 7.65 | 2.0 | |||||
| H18 | 12.24 | - | - | 1.0 | |||||
| 1050 | O | 6.12 | 10.20 | 2.04 | 20.0 | ||||
| H12 | 8.16 | 12.24 | 6.63 | 4.0 | |||||
| H14 | 9.69 | 12.75 | 7.65 | 3.0 | |||||
| H16 | 12.24 | 14.79 | 8.67 | 2.0 | |||||
| H18 | 12.75 | - | - | 1.0 | |||||
| 1100 | O | 7.74 | 10.90 | 2.46 | 15.0 | ||||
| H12 | 9.84 | 13.36 | 7.73 | 5.0 | |||||
| H14 | 11.25 | 14.76 | 9.84 | 3.0 | |||||
| H16 | 13.36 | 16.87 | 11.95 | 2.0 | |||||
| H18 | 15.47 | - | - | 1.0 | |||||
| 3003 | O | 9.84 | 13.36 | 3.52 | 20.0 | ||||
| H12 | 11.95 | 16.17 | 8.44 | 4.0 | |||||
| H14 | 14.06 | 18.28 | 11.95 | 3.0 | |||||
| H16 | 16.87 | 21.09 | 14.76 | 2.0 | |||||
| H18 | 18.98 | - | 16.87 | 1.0 | |||||
| 5052 | O | 17.58 | 21.80 | 6.68 | 15.0 | ||||
| H32 | 21.80 | 26.72 | 16.17 | 5.0 | |||||
| H34 | 23.90 | 28.83 | 18.28 | 4.0 | |||||
| 5657 | H241 | 12.66 | 18.28 | - | 13.0 | ||||
| 參考規範：AA、ASTM、JIS、CNS | |||||||||