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Brazing Aluminum Alloys

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Brazing Aluminium Alloys materials
 
Cladding an aluminum-silicon alloy with a Brazing Aluminium Alloys materials provides an aluminum alloy that has the thin walls necessary for use in automobile heat exchangers, as well as such desirable characteristics as high strength, corrosion resistance and formability. We have developed and are refining a variety of products of this sort.

Specification and Data Sheet


Brazing Aluminium Alloys materials Dimensions  
  Strips  Sheets 
Thickness  0.051mm--3.0mm 0.4mm--6.35mm
Width  6mm--1600mm 500--1600mm
Length    Max. 10000mm
Edge quality  Trimmed  Trimmed and slit; sawn 
Inside diameter
 
305mm, 405mm, 505mm Paper core, Aluminium core,  without core.   
Outside diameter  Max. 1600mm without connect point 

Cladding 
Cladding  One side; Both sides 
Cladding rate  5%, 7.5%, 10%, 13%, 15% (other clad percentages available upon request)
Cladding tolerance  Cladding thickness of 1.5%--<4%: +/-0.6 

Cladding thickness of 4.0--6.0%: +/-1.0

Cladding thickness of 6.0--<=12.0%: +/-1.5

Cladding thickness of 12.0--20.0%: +/-2.0

Surface
Quality  Mill finish; for thickness 0.3--3.5mm, chemically degreased
Marking  Ink marking 

1> Tolerance according to EN and ASTM.
2> Higher thickness on request. 
3> Special dimensions , tolerances, and alloys on request. 

Brazing Aluminium Alloys materials Chemical composition 
SIGNI ALUMINIUM CLAD ALLOYS  Others
Alloy    Si Fe Cu Mn Mg Cr Zn Ti each total
Clad alloys for VCA-brazing according to EN573-3 
4004 Min.
max.
9.0
10.5
-
0.8
-
0.25
-
0.10
1.0
2.0
-
-
-
0.20
-
-
-
0.05
-
0.15
4104(Containing0.02%-0.20% Bi) Min.
max.
9.0
10.5
-
0.8
-
0.25
-
0.10
1.0
2.0
-
-
-
0.20
-
-
-
0.05
-
0.15
Clay alloys for CAB-brazing according to EN573-3 
4343 Min.
max.
6.8
8.2
-
0.8
-
0.25
-
0.10
-
-
-
-
-
0.20
-
-
-
0.05
-
0.15
4045 Min.
max.
9.0
11.0
-
0.8
-
0.30
-
0.05
-
0.05
-
-
-
0.10
-
0.20
-
0.05
-
0.15
4047A Min.
max.
11.0
13.0
-
0.6
-
0.30
-
0.15
-
0.10
-
-
-
0.20
-
0.15
-
0.05
-
0.15
Zn-containing clad alloys for CAB-brazing 
4343.ZN Min.
max.
6.8
8.2
-
0.8
-
0.25
-
0.10
-
-
-
-
0.8
1.2
-
-
-
0.05
-
0.15
4045.ZN Min.
max.
9.0
11.0
-
0.8
-
0.30
-
0.05
-
0.05
-
-
0.8
1.2
-
0.20
-
0.05
-
0.15
Clad alloys for corrosion protection according to EN573-3 
1050A Min.
max.
-
0.25
-
0.40
-
0.05
-
0.05
-
0.05
-
-
-
0.07
-
0.05
-
0.03
-
-
7072 Min.
Max.
-
0.7(Si+Fe)
-
0.10
-
0.10
-
0.10
-
-
0.8
1.3
-
-
-
0.05
-
0.15
All data in Wt.-%;   Customer specific alloy composition on request.
3××× alloys according to EN573-3 and ASTM  3××× 
3003 Min.
max.
-
0.6
-
0.7
0.05
0.25
1.0
1.5
-
-
-
-
-
0.10
-
-
-
0.05
-
0.15
3004 Min.
max.
-
0.30
-
0.70
-
0.25
1.0
1.5
0.8
1.3
-
-
=
0.25
-
-
-
0.05
-
0.15
3005 Min.
max.
-
0.6
-
0.70
-
0.30
1.0
1.5
0.20
0.6
-
0.10
-
0.25
-
0.10
-
0.05
-
0.15
3103Containingmax.0.10%(Zr+Ti)  Min.
Max.
-
0.50
-
0.70
-
0.10
0.9
1.5
-
0.30
-
0.10
-
0.20
-
-
-
0.05
-
0.15
3105 Min.
Max.
-
0.6
-
0.7
-
0.30
0.30
0.80
0.20
0.80
-
0.20
-
0.40
-
0.10
-
0.05
-
0.15
   5×××-non-heat-treatable alloys according to EN573-3 and ASTM 5××× 
5049 Min.
max.
-
0.40
-
0.50
-
0.10
0.50
1.10
1.60
2.50
-
0.30
-
0.20
-
0.10
-
0.05
-
0.15
5052 Min.
max.
-
0.25
-
0.40
-
0.10
-
0.10
2.2
2.8
0.15
0.35
-
0.10
-
-
-
0.05
-
0.15
5083 Min.
max.
-
0.40
-
0.40
-
0.10
0.40
1.0
4.0
4.9
0.05
0.25
-
0.25
-
0.15
-
0.05
-
0.15
   6×××-non-heat-treatable alloys according to EN573-3 and ASTM 6×××
6063 Min.
max.
0.20
0.60
-
0.35
-
0.10
-
0.10
0.45
0.90
-
0.10
-
0.10
-
-
-
0.05
-
0.15
6951 Min
max.
0.20
0.50
-
0.08
0.15
0.40
-
0.10
0.40
0.8
-
-
-
0.20
-
-
-
0.05
-
0.15
7×××-non-heat-treatable alloys according to EN573-3 and ASTM 7×××
7020
 
 
Containing 0.08%-0.25% (Zr+Ti) and 0.08%--0.20% Zr
Min.
max.
-
0.35
-
0.40
-
0.20
0.05
0.50
1.0
1.4
0.10
0.35

 
4.0
5.0
-
-
-
0.05
-
0.15

 
Brazing Aluminium Alloys materials Physical Property Data of Strip Material 
Alloy
 
Temper
 
Thickness
(mm)

 
Tolerance
(mm)

 
Clad Ratio
(%)
Tensile 
Strength
(MPa)
Yield
Strength
(MPa)
Elongation
(%)Min
Application
3003 H14 0.08~0.12 ±0.005 None 150~200 ≥120 1 Evaporator fin
 and plate 
3003 H26 0.3~0.35 ±0.015 None 190~220 ≥160 8 Glass mounting
 bracket material
3003 H14 0.06~0.1 ±0.005 None 150~200 ≥120 1 Radiator fin
 and plate 
4343/3003/
4343
H14 0.06~0.1 ±0.005 8~12 150~200 ≥120 1
4343/3003/
4343
H14 0.08~0.12 ±0.005 8~12 150~200 ≥120 1 Parallel 
condenser fin 
4343/3003/
4343
H14 0.1~0.12 ±0.005 8~12 150~120 ≥120 1 Charge air 
cooler material 
4045/3003/
4045
H14 0.1~0.12 ±0.005 8~12 150~200 ≥120 1
1060 O 0.35~0.4 ±0.02 None 55~95 ≥15 25 Air cooling fin 
material for tubes 
1100 O 0.35~0.4 ±0.02 None 75~105  

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