What is Aluminium-Silicon Alloy

What is Aluminium-Silicon Alloy?

A binary silicon-aluminum alloys, which are made up of aluminum and silicon is able to preserve the exceptional properties of both.

Silicon is good for alloys of metal which are used in casting. Silicon increases the melting fluidity and reduces the temperature of melting and decreases shrinkage caused by the process of solidification. This makes it an extremely affordable raw material. Silicon is also extremely robust (2.34g/cm3). It can help reduce the total weight of the components that are being made. It has a very low solubility when it comes to aluminum. Silicon precipitates in the form of nearly pure silica, which improves wear resistance. The content of aluminium and silicon is very high. Silicon powder preparation technology is advanced and cost-effective. In addition, the material is clean and safe for the human body’s health.

Si-Al alloy has a density of between 2.5 and 2.7g/cm3. It also has a coefficient of thermal expansion (CTE), which is between 7 and 20ppm/. The thermal expansion coefficient of Si-Al alloy and density decreases with increasing silicon content. Si-Al alloy is a great material with excellent properties like good thermal conductivity and high specific strength. It can also be coated with silver, gold or copper. Si-Al alloy is also able to be weldable with substrate and allows for easy precise machining.

Silicon-aluminum-alloy is an exciting material for electronic packaging, particularly in high-tech areas such as aerospace, space technology and mobile electronic devices.

What Types of Silicon-Aluminum Alloys are available?

The industrial alloy of silicon-aluminum is classified into four groups:

Hypoeutectic titanium aluminum alloy. The silicon content is between 9 between 9% and 12 percent.

Eutectic silicon aluminum alloy. The silicon content is 11% to 13%.

Hypereutectic silicon aluminum alloy. The silicon content ranges from between 15% and 20%.

High-silicon aluminum alloy. Silicon content is higher than 22%. It is typically 25-70%, and up to 80%.

What are the uses for which Aluminum-Silicon alloy is employed to serve?

The alloy of high-silicium-aluminum can be used to make lightweight, wear-resistant materials for all types of transport tools, power machinery and special fasteners.

High silicon-aluminum alloy is extensively used in automotive engine pistons, cylinder liners, rotors and brake discs because of its lower specific gravity, light weight and low thermal expansion coefficient.

It can also be used to create high-power integrated circuits.


Optic frame.

Heat sink parts

Al-Si alloy is used as a strong deoxidizer compound. The replacement of pure aluminum during the process of making steel can increase the utilization rate of deoxidizer, purify melting steel, and enhance the quality of steel.

What Series Is an Aluminium Silicon Alloy

4XXX series.

What exactly is Silumin?

Silumin is a group of aluminum alloys that are light and strong, produced by the aluminum-silicon combination. The aluminum-silicon alloys typically consist of between 3% and 25 percent silica. The alloys of Al-Si are most often in casting. But they also have a fast solidification process and be used in the process of powder metalurgical. Silica can be as high as 50% of alloys that are made for powder metallurgy rather than for casting. Silumin is resistant to corrosion which makes it ideal for wet environments.

Si-Al Alloy Powder

Many factors influence the price, including market patterns supply and demand the economy’s activity, sentiment about markets and unanticipated things that happen.

You can email us for a quote request for the latest Si Al alloy powder price.

Si-Al Alloy powder Supplier

Ormemoda Nano Technology Co. Ltd.

You can contact us to request high-quality Si Al alloy Powder.