The Si content of 4043 brazing aluminum sheet foil coil strip is 4.5% to 6.0%, which is a hypoeutectic alloy in the aluminum-silicon series. It is characterized by low melting point, good fluidity, good filling property, easy feeding, very beneficial to avoid welding cracks, and good corrosion resistance and cutting performance. This alloy sheet is the first choice for welding aluminum alloy automotive doors....
1.The Introduction of 4043 brazing aluminum sheet foil coil strip
The Si content of 4043 brazing aluminum sheet foil coil strip is 4.5% to 6.0%, which is a hypoeutectic alloy in the aluminum-silicon series. It is characterized by low melting point, good fluidity, good filling property, easy feeding, very beneficial to avoid welding cracks, and good corrosion resistance and cutting performance. This alloy sheet is the first choice for welding aluminum alloy automotive doors.
In addition, 4043 brazing aluminum sheet foil coil strip has the characteristics of good fluidity, low solidification shrinkage and resistance to welding hot cracks, and good castability and weldability. It is used in the production and processing of aluminum-silicon alloy welding wire, which is a large amount of brazing filler metal.
2.The Specification of 4043 brazing aluminum sheet foil coil strip
*Alloy: 4043
*Temper: O,H12,H22,H14,H24,H16,H26,H18,F,H112 etc
*Thickness: 0.05mm~6mm
*Sheet width: 450mm -2200mm; coil width: 5mm-2200mm
*Length: 500-15000mm or Coiled, coil outer diameter: Max 2500mm
*Delivery shape: aluminum foil: 0.05mm~0.20mm; plate shape; Coil shape; Strip shape
*Inner diameter of coils: 75mm, 76mm, 150mm, 152mm, 200mm, 250mm, 300mm, 405mm, 505mm
Paper core or aluminum core, outer diameter according to customer requirements.
3.The Chemical composition of 4043 brazing aluminum sheet foil coil strip
|
4043 Chemical Composition(%) |
|||||||||
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Ni |
Alu |
|
4.5--6.0 |
<0.8 |
<0.30 |
<0.05 |
<0.05 |
-- |
<0.10 |
<0.20 |
-- |
Remainder |
4.The Mechanical properties of 4043 brazing aluminum sheet foil coil strip
|
Alloy |
Temper |
Thickness (mm) |
Mechanical properties |
||
|
Tensile Strength（Mpa） |
Yield strength （Mpa） |
Elongation (%) |
|||
|
standard value |
standard value |
A50 |
|||
|
Not less than |
|||||
|
4043 |
O |
0.05-0.5 |
90-140 |
35 |
5 |
|
＞0.5-3.0 |
10 |
||||
|
H12 H22 |
0.05-0.5 |
120-170 |
100 |
2 |
|
|
＞0.5-3.0 |
3 |
||||
|
H14 H24 |
0.05-0.5 |
140-190 |
120 |
1 |
|
|
＞0.5-3.0 |
1 |
||||
|
H16 H26 |
0.05-0.5 |
160-210 |
140 |
0.5 |
|
|
＞0.5-3.0 |
1 |
||||
|
H18 |
0.05-0.5 |
180 |
160 |
0.2 |
|
|
＞0.5-3.0 |
1 |
||||
5.The Performance advantages of 4043 brazing aluminum sheet foil coil strip
A: It has low melting point, good fluidity, good filling property, and easy to feed, which is very beneficial to avoid welding cracks.
B: Its corrosion resistance and cutting performance are good.
C: It has the characteristics of good fluidity, low solidification shrinkage, and resistance to welding hot cracks.
D: Its castability and weldability are good.
6.The Usage of 4043 brazing aluminum sheet foil coil strip
4043 brazing aluminum sheet foil coil strip is the first choice for welding aluminum alloy automotive doors, and It is also produced for processing aluminum-silicon alloy welding wire..
Aluminum alloy welding wire is a necessary filler material for aluminum alloy welding. It has application requirements in all applications where aluminum alloy is used, such as vehicles, ships, buildings, bridges, and chemical machinery.
