4047 brazing aluminum sheet foil coil strip is Al Si12 alloy, with Si element mass fraction ranging from 11% to 13%, which is a typical eutectic Al-Si alloy. The melting temperature range is 576~582℃,it has a low melting point and narrow solidification interval,and has a strong molten pool wettability, which can significantly reduce welding heat cracks caused by insufficient solidification shrinkage, and the weld seam has high shear strength....
1.The Introduction of 4047 brazing aluminum sheet foil coil strip
4047 brazing aluminum sheet foil coil strip is Al Si12 alloy, with Si element mass fraction ranging from 11% to 13%, which is a typical eutectic Al-Si alloy. The melting temperature range is 576~582℃,it has a low melting point and narrow solidification interval,and has a strong molten pool wettability, which can significantly reduce welding heat cracks caused by insufficient solidification shrinkage, and the weld seam has high shear strength. It is often used as welding filler wire and fusion welding,brazing materials of Al-Cu-Mg, Al-Cu-Mg-Si, Al-Zn-Mg-Cu and other difficult-to-weld aluminum alloys, 6-series aluminum alloys, and cast aluminum with strong hot cracking tendency, is widely used in automotive, air-conditioning, aerospace and military industries.
2.The Specification of 4047 brazing aluminum sheet foil coil strip
*Alloy: 4047
*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 4047 brazing aluminum sheet foil coil strip
|
4047 Chemical Composition(%) |
|||||||||
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Ni |
Alu |
|
11.0--13.0 |
<0.8 |
<0.30 |
<0.15 |
<0.10 |
-- |
<0.20 |
-- |
-- |
Remainder |
4.The Mechanical properties of 4047 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 |
|||||
|
4047 |
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 4047 brazing aluminum sheet foil coil strip
A: 4047 brazing aluminum sheet foil coil strip has a lower melting point and higher fluidity, and the weld metal has excellent corrosion resistance.
B: 4047 brazing aluminum sheet foil coil strip with high silicon content is beneficial to reduce the tendency of welding hot cracks and obtain higher shear strength of fillet welds.
C: 4047 brazing aluminum sheet foil coil strip is high, and the welding performance is excellent.
D: The product after brazing is beautiful, and there is no pores, cracks, weld bumps and other phenomena in the welding. The surface of the weld joint is bright and the fillet is even.
6.The Usage of 4047 brazing aluminum sheet foil coil strip
4047 brazing aluminum sheet foil coil strip is often used as fusion welding and brazing materials, and have a wide range of applications in automotive parts, military equipment manufacturing, household appliances and HVAC, light industry manufacturing etc fields.
