Our successful cases

Silicon metal 553

What is Silicon Metal 553 Grade?

Silicon metal 553 is a commonly used grade. In the metal silicon 553, the silicon content should be as high as 98.5%. The contents of iron, aluminum, and calcium are 0.5%, 0.5%, and 0.3% respectively.Silicon 553 and silicon 441 are mainly used in the production of aluminum ingots.Adding silicon metal to aluminium alloys makes them strong and light.

Silicon metal 553 specification:

Silicon metal 553 generally the diameter is 10-50mm,50-100mm,10-100mm or other sizes as customer’s request.

Silicon metal is a gray and shiny semiconductor metal,also known as crystalline silicon or industrial silicon, is mainly used as an additive for non-ferrous alloys which smelted from quartz and coke in an electric furnace.

Silicon metal classification:

 The classification of metallic silicon is usually classified according to the content of iron, aluminum and calcium, silicon metal can be divided into different grades such as silicon metal 553/441/3303/2202 and 1101.


Aluminium ingot factory/aluminium manufacturer

Chat Online Leave Message

  • Application
  • Specification
  • Related products
  • Contact


Silicon metal 553 grades:

The chemical composition of metallic silicon is generally silicon, ferro, aluminum, and calcium. Therefore, the grade of metal silicon is divided according to the three main impurity contents of iron, aluminum and calcium.

For example:In the metal silicon grade 553, the contents of ferro, aluminum, and calcium are 0.5%, 0.5%, and 0.3%.

Commonly used grades are 553/441/3303/2202/411/421 and so on. What brand should be used specifically depends on what field the user is using and what effect he wants to achieve.


Silicon metal 553 uses:

1. Aluminum alloy

It can improve the already useful properties of aluminum such as castability, hardness and strength. Adding silicon metal to aluminium alloys makes them strong and light.

So, they are increasingly used in the automotive industry. Used to replace heavier cast iron parts. Automotive parts such as engine blocks and tire rims are the most common cast aluminum silicon parts.

2. Solar industry and electronics industry.

Silicon metal can also be used as essential material in the solar and electronics industries. For examples, it can be used in the manufacture of solar panels, semi-conductors and silicon chips.

3.Production of silicone rubber, silicone resin, silicone oil, etc.


silicon metal 553 grades specifications:

  Grade                                                   Composition
                Si                                     Impurities(%)
       Fe            AI                Ca
2202 99.58 0.2 0.2 0.02
3303 99.37 0.3 0.3 0.03
441 99.1 0.4 0.4 0.1
553 98.7 0.5 0.5 0.3

Some tips for silicon metal 553 buyers:

1. Metal silicon 553 has two shapes of block and powder. About the particle size, the metal silicon factory can be produced according to the needs of users.

2. Silicon metal 553 the common package is 1Mt/Bag. It can also be packaged according to the user’s requirements.

3. Silicon metal 553 the minimum order quantity is 20-25MT (But we also accept LCL).

4.Silicon metal 553 payment term: T/T OR L/C

Silicon metal 553 delivery time: Within 5-7 days after receiving the prepayment.

Silicon metal 553 manufacturer service:

We can supply you free samples, booklet, laboratory test report, Industry Report etc
Welcome to our factory and company for a visit


To provide you with high quality and low price products


[email protected]