• Why is Silicon Metal 421 commonly used in silicone production?

It combines high silicon purity with carefully controlled aluminum (Al) and calcium (Ca) levels, both of which are important considerations in many silicone manufacturing processes. This balanced chemical composition provides an excellent combination of production performance and cost efficiency.

• Is Silicon Metal 421 suitable for aluminum alloy production?

Yes. Silicon Metal 421 can also be used in aluminum alloy manufacturing where stable silicon content is required.

• What is the difference between 421 and 441?

421 generally contains lower Aluminum content, while Silicon Metal 441 provides a different impurity balance for various industrial applications.

• Can Silicon Metal 421 be used for polysilicon production?

It may be used for certain purification processes depending on production requirements. For applications requiring stricter impurity control, Silicon Metal 1101 and Silicon Metal 2202 are more commonly selected.

Composition