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Aluminum Base Brazing Alloys

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Details

Item
Composition(%)
Melting Range(oC)
Principal areas of application
Si
Cu
Zn
Mg
Fe
Impurities Total
Solidus
 Liquidus
A-1
11-13
<0.3
<0.2
<0.1
<0.8
 
577
582
The good fluidity, the wet ability, the corrosion resistance are suitable for the aluminum and aluminum alloy braze welding
A-2
9.3-10.7
3.3-4.7
<0.2
<0.15
<0.8
Cr<0.15
520
585
A-3
11-13
<0.25
<0.2
1-2
<0.8
 
559
591
The characteristic and SA-1 are quite suitable for the aluminum vacuum brazing
A4043
4.5-6.0
0.3
0.1
0.05
0.8
0.2
 
0.15
The crack resistance is good, the versatility answers. The aluminum alloy gas welding, the argon arc welding use. (is not suitable uses in high magnesium alloy)
A4047
11-13
0.3
0.2
0.10
0.8
0.1
0.06-2.0
0.15
The crack resistance is good, the versatility is big, the aluminum alloy gas welding, the argon arc welding use.

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