4104 brazing aluminum sheet foil coil strip
1.The Introduction of 4104 brazing aluminum sheet foil coil strip
4104 brazing aluminum sheet foil coil strip is a necessary raw material commonly used in the production of aluminum heat exchangers in the vacuum welding process.
4104 brazing aluminum sheet foil coil strip is used as the cladding layer of the cladding aluminum sheet, or is called the brazing material layer, and its Si content is 9.0%~10.5%. The high Si content can reduce the melting point, good fluidity, and strong gap filling ability. As a brazing material layer, it has good fluidity, wettability, gap filling ability and welding strength; at the same time, it enhances the corrosion resistance of the composite board.
The brazing material uses 4104 aluminum alloy composite plate, which is widely used in various heat exchangers, such as automobile water tank radiators, automobile air-conditioning condensers, and evaporators.
2.The Specification of 4104 brazing aluminum sheet foil coil strip
*Alloy: 4104
*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 4104 brazing aluminum sheet foil coil strip
| 4104 Chemical Composition(%) |
| Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Bi |
Alu |
| 9.0--10.5 |
<0.8 |
<0.25 |
<0.10 |
1.0-2.0 |
-- |
<0.20 |
-- |
0.02--
0.20 |
Remainder |
4.The Mechanical properties of 4104 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 |
| 4104 |
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 4104 brazing aluminum sheet foil coil strip
A: It has a low melting point, good fluidity, and strong gap filling ability.
B: It has good fluidity, wettability, gap filling ability and welding strength.
C: It has good corrosion resistance.
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 4104 brazing aluminum sheet foil coil strip
4104 brazing aluminum sheet foil coil strip is used as the cladding layer of cladded aluminum sheet plate, which is widely used in various heat exchangers, such as automobile water tank radiators, automobile air conditioning condensers, and evaporators.
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