What is Aluminium-Silicon Alloy?

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email:

What is an Aluminium-Silicon Alloy ? Silicon alloy is made up of silicon and alm. It can preserve the exceptional properties of each.
Silicon is good for metal alloys that are used for casting. Because of its fluidity and melting temperature, it reduces shrinkage, solidification time, and is inexpensive as a raw material. Silicon is also very dense (2.34g/cm3). This may help reduce the total weight of castings. It is very solubilized in aluminum. Therefore, silicon precipitates in the form almost pure silicon. This gives rise to wear resistance. This material is rich in silicon and aluminum, and has a mature preparation technology.
Si-Al alloy has a density of between 2.4g/cm3 & 2.7g/cm3. The coefficient of thermal extension (CTE), ranges between 7-20ppm/. Si-Al alloy’s density and thermal expansion factor decreases with increasing silicon content. Si-Al alloy has great properties like good thermal conductivity and high specific strength. It can also be coated with gold, silver or copper. Si-Al alloy can also be weldable with substrate and allows for easy precision machining.
Silicon-aluminum alloy is a promising option for electronic packaging materials, especially in high tech fields like aerospace, space technology and portable electronic gadgets.

What types of Silicon-Aluminum Alloys is Available?
Four categories can be used to describe the industry’s important silicon-aluminum alloy:
Hypoeutectic silica aluminum alloy. The silicon content can range from 9% to 12 percent.
Auxiliary silicon aluminum alloy. The silicon content can range from 11%-13%.
Hypereutectic silica aluminum alloy. The silicon content can range from 15% to 20 percent.
High silicon aluminium alloy. The silicon content is higher than 22%, mostly 25-70%, and up to 80%.

What is Aluminum-Silicon Alloy?
High silicon-aluminum alloy material 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 used widely as a cylinder liner, piston and rotor in automobile engines. This alloy has low specific gravity, high thermal conductivity and low volume stability.
It can also serve as a packaging material for high-power integrated circuits.
Optic frame.
Heat sink parts
Al-Si is a strong, compound deoxidizer. It is possible to replace pure aluminum in steelmaking processes, which can increase deoxidizer utilization rate, purify molten Steel and improve steel quality.

What series is an Aluminium Silicon Alloy?
4XXX series.

What is Silumin, you ask?
Silumin, a series of aluminum alloys that are lightweight and strong made from aluminum-silicon systems like aluminum-silicon, is one such group. Aluminum-silicon alloys typically contain between 3 and 25% silicon. Al-Si alloys are used primarily for casting. However, they can also be used in powder metallurgy and rapid solidification. The silicon content of alloys that are used in powder metallurgy may be higher than for casting. Silumin is suitable to be used in wet environments due to its high corrosion resistance.

Si Al Alloy Price
Price is affected by many factors, including supply and demand, market trends, economic activity and unexpected events.
For the most recent SiAl alloy powder price please send us an inquiry. (

SiAl Alloy powder Provider
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super high-quality chemicals.
Send us an inquiry if you’re looking for Si-Al alloy powder of high quality. (

Resent Products

    Aluminium Products 1060 H18 T Type Aluminum Roofing Sheet

    US $ 1800.0-2200.0 / Ton

    (FOB Price)

    5 Tons (MOQ)

    • Color: Silver
    • Application: Transportation Tools, Door & Window, Glass Wall, Heat Sink, Decorations
    • Certification: RoHS, ISO9001, ASTM, JIS, GB, EN, ASTMB
    • Technique: Cold Rolled&Hot Rolled
    • Grade: 1000 Series
    • Temper: O - H112

    Aluminum Extrusion T Slot Profile for Aluminium Frame

    US $ 3600.0-3800.0 / Ton

    (FOB Price)

    5 Tons (MOQ)

    • Type: Window & Door Aluminium Profile, Decoration Aluminium Profile, Glass Wall Aluminium Profile, Industrial Aluminium Profile
    • Shape: Angle
    • Grade: 6000 Series
    • Temper: T3-T8
    • Window & Door Aluminium Profile: 60 Series
    • Alloy: Alloy

    Windows@Doors Aluminium Profiles Industrial Aluminium Profile

    US $ 3.5-5.0 / Meter

    (FOB Price)

    300 Meters (MOQ)

    • After-sales Service: Yes
    • Warranty: Yes
    • Type: Window & Door Aluminium Profile, Decoration Aluminium Profile, Heat Sink Aluminium Profile, Industrial Aluminium Profile, Aluminum Handle
    • Shape: T - Profile
    • Grade: 6000 Series
    • Temper: T3-T8

    Armoured Cable Tape

    US $ 3400.0-3800.0 / Ton

    (FOB Price)

    5 Tons (MOQ)

    • Application: Optical Cable
    • Certification: ISO9001, GB
    • Technique: Coating Technology
    • Grade: 8011
    • Temper: O-8011
    • Surface Treatment: Color Coated

    Factory China Factory 2.5mm Thick H34 1050 / 1060 / 1100 / 3003 / 5086 Aluminum Sheet

    US $ 2550.0-2850.0 / Ton

    (FOB Price)

    1 Ton (MOQ)

    • Product Name: Aluminum Sheet / Plate / Blank
    • Thickness: 0.2mm-300mm or Customized
    • Width: 3mm-2000mm or Customized
    • Length: 2000mm, 2440mm, 6000mm, or Customized
    • Product Grade: 1050, 1060, 2A14, 3003, 3103, 4032, 5754, 5056, 5082, etc.
    • Product Temper: O, H12, H14, H16, H18, H22, H24, H26, H32, H34, H111, etc.