Clad Aluminium Brazed Alloy For
Heat Exchangers

Non-Clad fin
Main Alloy: 3003,3Y33,3Y33A,3Y34A,CF30
Temper: H14,H16
Thickness: 0.0475-0.16mm
Application: Radiator, Heater core, Laminated evaporator, CAC, Oil cooler
Alloy | Temper | Thickness | Tensile Strength (MPa) | Yield Strength (Mpa) | Elongation(%) | Application |
---|---|---|---|---|---|---|
3003 | O | 0.10-0.30 | 95 – 135 | ≥ 35 | ≥ 20 | Radiator Evaporator |
H14 | 145 – 185 | ≥ 123 | ≥ 2 | |||
3Y33 | H14 | 0.08-0.12 | 180 – 220 | ≥ 160 | ≥ 0.5 | |
Cf30 | H14 | 0.045-0.07 | 180 – 220 | ≥ 160 | ≥ 0.5 |

Clad-Fin
Main Alloy: Q3003P, Q17A1, Q171
Temper: H14,H16
Thickness: 0.07-0.12mm
Application: PE evaporator, Condenser
Advantages:
- High post-brazed strength, good conductivity
- Good sag-resistence under high temperature
- Helping customer reduce cost of raw materials substantially
Alloy | Clad Ratio | Temper | Thickness(mm) | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) | Application |
---|---|---|---|---|---|---|---|
Q171(4343/3Y33/4343) | 10 ± 2% | H14 | 0.08 – 0.02 | 180 – 220 | ≥ 160 | ≥ 0.5 | Condenser |
Q373(4045/3Y33/4045) | 10 ± 2% | H14 | 0.09 – 0.15 | 165 – 205 | – | ≥ 0.5 | |
Q111(4343/3003/4343) | 10 ± 2% | H14 | 0.10 – 0.20 | 140 – 170 | – | ≥ 1 | |
Q313(4045/Q3003/4045) | 10 ± 2% | H14 | 0.10 – 0.20 | 180 – 220 | ≥ 160 | ≥ 0.5 |
Structure | Alloy | Si | Fe | Cu | Mn | Mg | Zn | Ti |
---|---|---|---|---|---|---|---|---|
Clad | 4343 | 6.8-8.2 | <0.8 | <0.25 | <0.1 | – | <0.20 | <0.05 |
4045 | 9.0-11.0 | <0.8 | <0.35 | <0.05 | <0.05 | <0.10 | <0.02 | |
Core | 3Y33 | 0.1-1.0 | <0.7 | <0.1 | 1.4-2.0 | – | 1.3-2.0 | – |
Clad | Q3003 | <0.6 | <0.7 | 0.05-0.20 | 1.0-1.5 | – | <0.10 | – |

Clad plate
Main Alloy: Q119, Q1109, Q1109S, Q110F7, Q3109T8
Temper: O
Thickness: 0.4-3.0mm
Application: Water tank, intercooler, oil cooler, evaporator
Advantages: Superior performance on machining performance and corrosion resistance
Alloy | Clad Ratio | Temper | Thickness(mm) | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) | Application |
---|---|---|---|---|---|---|---|
Q149(4343/Q3003/7072) | 10 ± 2% | O | 1.0 – 1.8 | 95 – 135 | ≥ 35 | ≥ 20 | Radiator header plate, side plate |
Q199(4343/3203/7072) | 10 ± 2% | O | 1.0 – 1.8 | 120 – 150 | ≥ 35 | ≥ 20 | |
Q140(4343/Q3003) | 10 ± 2% | O | 1.0 – 1.8 | 95 – 135 | ≥ 35 | ≥ 20 | |
Q111(4343/Q3003/4343) | 10 ± 2% | O | 0.4 – 2.0 | 95 – 135 | ≥ 35 | ≥ 20 | Evaporator |
Q363(4045/3NN3/4045) | 10 ± 2% | O | 0.4 – 1.5 | 130 – 160 | ≥ 45 | ≥ 20 |

Tube alloy stock
Main Alloy: CC3003MOD, Q119, Q111, Q15T1
Temper: H14,H24
Thickness: 0.21-0.40; 0.30-0.50mm; 1.13-2.08mm
Application: Radiator welded tube, CAC welded tube and Condenser collecting tube
Advantages: High strength corrosion resistance with competitive cost
Alloy | Clad Ratio | Temper | Thickness(mm) | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) | Application |
---|---|---|---|---|---|---|---|
Q149(4343/Q3003/7072) | 10 ± 2% | H14 | 0.28 – 0.32 | 145 – 185 | ≥ 125 | ≥ 2 | Radiator tube |
Q159(4343/Q3005/7072) | 10 ± 2% | H14 | 0.25 – 0.30 | 185 – 235 | ≥ 150 | ≥ 8 |
Structure | Alloy | Si | Fe | Cu | Mn | Mg | Zn | TI | |
---|---|---|---|---|---|---|---|---|---|
Clad | 4343 | 6.8 – 8.2 | < 0.8 | < 0.25 | < 0.1 | – | < 0.20 | < 0.05 | |
4045 | 9.0 – 11.0 | < 0.8 | < 0.30 | < 0.05 | < 0.05 | < 0.10 | < 0.20 | ||
Core | Q3003 | < 0.6 | < 0.7 | 0.05 – 0.20 | 1.0 – 1.5 | – | < 0.10 | – | |
Q3005 | < 0.6 | < 0.7 | < 0.4 | 1.0 – 1.5 | < 0.4 | < 0.10 | < 0.10 | ||
Sacrifice | Clad | 7072 | Fe + Si < 0.7 | < 0.1 | < 0.1 | < 0.1 | 0.8 – 1.3 | – |
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