Micro-multiport tube is the high-tech aluminum products under the process of hot extrusion from refined aluminum ingot and then zinc spraying for anti-corrosion.
Micro multi-port tube is the core materials of new generation parallel flow air conditioning heat exchangers. It is outstanding in enviromental-friendly, efficient, energy-saving and cost reduction and was approved vividly in automobile air conditioning system. With restriction and prohibition of the application of the traditional refrigerant, it is a trend that household and commerical air conditioning heat exchanger needs revolution.
Micro multi-port tube is applied not only in car air conditioner but also in the field of commercial, household air conditioner, condenser, evaporator, fridge, oil cooler and inter cooler.
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Technical Standards |
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1. Chemical Composition |
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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(Fe+Si) |
0.05-0.20 |
≤ 0.05 |
- |
- |
≤0.10 |
- |
- |
3 |
1197 |
≤ 0.15 |
≤ 0.20 |
0.40-0.55 |
0.10-0.20 |
≤ 0.03 |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
4 |
3102 |
≤ 0.40 |
≤ 0.70 |
≤ 0.10 |
0.05-0.40 |
- |
- |
≤0.30 |
- |
≤0.10 |
5 |
3R03 |
≤ 0.15 |
≤ 0.15 |
≤ 0.01 |
0.90-1.10 |
≤ 0.03 |
≤0.03 |
≤0.05 |
≤0.05 |
≤0.05 |
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2. Mechanical Properties |
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No. |
Alloy |
Temper |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elogation(%) |
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1 |
1050 |
O/F/H111/H112 |
≥ 65 |
≥ 20 |
≥ 25 |
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2 |
1100 |
O/F/H111/H112 |
≥ 75 |
≥ 20 |
≥ 25 |
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3 |
1197 |
O/F/H111/H112 |
≥ 80 |
≥ 25 |
≥ 20 |
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4 |
3102 |
O/F/H111/H112 |
≥ 75 |
≥ 20 |
≥ 25 |
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5 |
3R03 |
O/F/H111/H112 |
≥ 80 |
≥ 25 |
≥ 20 |
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3. Size Tolerance |
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Width |
Thickness |
Wall Thickness |
Length |
Lateral Curvature |
Frontal Curvature |
Twsiting Dgree |
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±0.05mm |
± 0.03mm |
± 0.05mm |
±0.03mm |
≤ L×0.2% |
≤ L×0.25% |
≤ L×0.15% |
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4. Corrosion Resistance |
Salt spray test: ≥ 750 hours |
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5. Zn Coating Standards |
6/8/10/13± 2g/square meter |
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6. Flux Coating Standards |
10-15± 2g/square meter |
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