Aluminum Alloy 4047/AlSi12

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Al-Si Alloys Raw Materials

Aluminum Alloy 4047/AlSi12

Composition:Al-12%Si

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  • Product Details

 

Chemical Compositions

Weight % Si Fe

Cu

Mn

Mg

 Ti

Zn

Other

Al
BEW 4047 11.0-13.0 0.8 0.3 0.15 0.1 0.15 0.2 0.05(each) 0.15(total) Bal

Significant Application

 

Used as lids extremely for hermetic packages due to the excellent weldability.The Al4047/Al-12%Si alloy can achieve the military standard,assure the helium leakage rate below 1×10-9(Pa-m3)/s. 

Products Description

Baienwei Al4047 as a thermal management material,its processed by rapid solidification provides good corrosion resistance, 

improved fluidity during welding process with smooth finishes, as well as reduced shrinkage. It is suitable for elevated temperature 

operations. 

BEW 4047 Data Sheet

Grade Density g/cm³

CTE 25℃ ppm/25℃ 

Thermal Conductivity 

25℃ W/mK

Tensile Strength MPa

Yield Strength MPa

 Poisson's Ratio

Elongation

%

Elastic Modulus GPa
BEW 4047   2.66 21.6 193 208 129 0.33 0.18 70

Applications

  • Laser welded covers for microwave integrated circuits;
  • Electronic Housing;
  • Welding filler wires;
  • Liners;
  • Millimeter Wave Field.
  • BEW 4047 housings.

Advantages

  • Light weight;
  • Excellent welding performance superior to AA4047;
  • Smooth finishes;
  • Readily machinable,plateable.