4047 Aluminium brazing sheet
OD18.8 X ID12.6 X T0.3 mm D20.1mm
BEIDUO 4047 aluminum sheet is a type of aluminum alloy commonly used in welding, especially for applications that require good strength, corrosion resistance, and good weldability. It is an alloy primarily made up of aluminum and silicon, with the silicon content typically ranging from 11% to 13%. This composition enhances its ability to act as a filler material in welding, particularly for applications like automotive, aerospace, and heat exchangers.
Key Features:
1. High Silicon Content: The high silicon content improves the fluidity of the weld pool, making it easier to work with and creating smooth, clean welds.
2. Good Strength and Durability: While not as strong as some other aluminum alloys, 4047 provides a good balance of strength and formability, which is adequate for most welding applications.
3. Excellent Corrosion Resistance: Like other aluminum alloys, it is highly resistant to corrosion, making it ideal for use in harsh environments.
4. Low Melting Point: The alloy’s lower melting point compared to pure aluminum makes it particularly suitable for use as a filler material in welding processes such as TIG and MIG.
Common Applications:
1. Welding Filler Material: 4047 is primarily used as a filler material in welding aluminum components, especially where high silicon content is beneficial, such as in welding aluminum to itself or to other metals.
2. Automotive Industry: Often used in the repair and fabrication of aluminum parts, such as in radiators, engine components, or heat exchangers.
3. Aerospace: It can be used for high-performance applications where low weight and corrosion resistance are critical, especially in components like aircraft heat exchangers or structural parts.
4. Heat Exchanger Manufacturing: Due to its excellent thermal conductivity and resistance to thermal expansion, it is a preferred material for heat exchangers, which require high thermal efficiency.
Welding Properties:
- Easy to Weld: The alloy is easier to weld than many other aluminum alloys, providing good workability and a smooth finish.
- High Fluidity: The high silicon content ensures that the weld pool remains fluid, reducing the likelihood of defects such as porosity and helping to achieve strong, consistent welds.
Overall, 4047 aluminum sheets are highly valued for their welding applications and offer a balance between strength, formability, and corrosion resistance, making them a reliable choice for various industries.
