| No. | Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | V | Ti |
| 1 | 1050 | ≤0.25 | ≤0.40 | ≤0.05 | ≤0.05 | ≤0.05 | --- | ≤0.05 | ≤0.05 | ≤0.03 |
| 2 | 1100 | ≤0.95(Si+Fe) | 0.05-0.20 | ≤0.05 | --- | --- | ≤0.10 | --- | --- | |
| 3 | 3102 | ≤0.40 | ≤0.70 | ≤0.10 | 0.05-0.40 | --- | --- | ≤0.30 | --- | ≤0.10 |
| 4 | 3003 | ≤0.15 | ≤0.15 | ≤0.01 | 0.90-1.10 | ≤0.03 | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.05 |
| Alloy | Temper | Tensile Strength | Yield Strength | Elongation |
| 1050 | O/F/H111/H112 | ≥65MPa | ≥20MPa | ≥25% |
| 1100 | O/F/H111/H112 | ≥75MPa | ≥20MPa | ≥25% |
| 3102 | O/F/H111/H112 | ≥75MPa | ≥20MPa | ≥25% |
| 3003 | O/F/H111/H112 | ≥75MPa | ≥20MPa | ≥25% |
Micro channel flat aluminium tube commonly used for automobile air conditioner condenser has larger internal section area, better effectiveness for heat transfer. At the same time, has the following characteristics:
1. Low weight
2. Good thermal and electricity conductivity
3. Excellent corrosion resistance
4. High cycle reuse value
5. High surface quality
6. Narrow tolerance range
