Aluminum brazing welding foil strip Alloy 4047
4047 Aluminum is a high-silicon alloy (typically 12-13% silicon) that is widely used in welding applications, as well as in the automotive and aerospace industries. Its unique combination of properties makes it a go-to choice in various demanding fields. Below are some of the key qualities and typical uses of 4047 aluminum.
Typical Sizes for Aluminum brazing welding foil strip Alloy 4047
Dimension | Range |
Thickness | 0.5 mm -- 3.0 mm (sheet) 0.025mm--3.0mm (foil strip) |
Width | 100 mm -- 1500 mm |
Length | 500 mm-- 3000 mm (sheet ,custom lengths available) |
Key Qualities of 4047 Aluminum
1. High Silicon Content: The high silicon content provides excellent fluidity and low melting point, which makes it ideal for use as a welding filler metal. This allows for easy joining of aluminum materials and improved wetting characteristics.
2. Good Strength-to-Weight Ratio: Like other aluminum alloys, 4047 is highly regarded for its lightweight nature, while still providing moderate strength. This makes it useful in applications where reducing weight without sacrificing too much strength is a priority.
3. Corrosion Resistance: 4047 aluminum exhibits good corrosion resistance in many environments, particularly in marine and aerospace conditions where exposure to moisture and atmospheric elements is common.
4. Excellent for Welding: 4047 is often used as a filler rod for welding aluminum alloys, particularly in applications where high-quality, strong welds are needed. The high silicon content helps reduce the potential for cracking during the welding process, making it easier to work with.
5. Thermal Conductivity: Due to its composition, 4047 aluminum has good thermal conductivity, which can be beneficial in applications where heat dissipation is important, such as in heat exchangers or cooling systems.
6. Ductility: Despite its strength, 4047 aluminum offers good ductility, allowing for some flexibility without cracking, which is especially useful for parts subject to stress or deformation.
Common application of 4047 Aluminum
Welding Filler Metal: One of the most prominent uses of 4047 is as a filler rod in aluminum welding, especially for joining high-strength aluminum alloys. It is often used in TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding processes to provide high-quality, strong welds with minimal cracking.
Automotive Components: In the automotive industry, 4047 aluminum is used for parts like cylinder heads, radiators, engine blocks, and transmission parts. The alloy's lightweight nature helps to improve fuel efficiency and reduce the overall weight of vehicles, contributing to better performance.
Aerospace Parts: The aerospace industry values 4047 aluminum for its lightweight, corrosion-resistant, and high-strength properties. It is used in the manufacture of components like wing skins, fuselage panels, and fuel tanks, where durability, strength, and weight savings are critical.
Heat Exchangers: The excellent thermal conductivity of 4047 makes it useful in applications like heat exchangers and radiators, where efficient heat transfer is essential.
Electronic Components: Due to its good thermal conductivity and corrosion resistance, 4047 aluminum is also used in certain electronic components, particularly those that require efficient heat dissipation.
