441 Silicon Metal Lumps 5-10 mm

Silicon Metal 441 is a metal alloy that conducts heat very well, and is also safe and resistant to acids and alkalis. In metallurgy, it is mixed with magnesium to make magnesium-silicon alloys for aerospace parts. Adding silicon to this mix makes the metal 30% stronger without making it less flexible.

 We operate as a direct manufacturer, eliminating markups and offering free samples, technical manuals, and certified test reports (lab and industry) to help you select the right grade (441, 553, etc.) for your application.

With 30+ years of expertise, 1.5 million tons annual capacity, and 300 skilled employees, we maintain large inventories to ensure timely delivery and customize products (e.g., alloy grades, packaging) to your exact specifications.

Quality is non-negotiable: every order undergoes ≥4 spectral/chemical tests-including raw material screening, in-production batch checks, and final product validation-to meet ASTM, RoHS, and customer-specific criteria, ensuring consistent, reliable supply.

We prioritize your peace of mind: our metal silicon is packaged in 10kg/25kg waterproof bags within 1MT bulk sacks (or custom formats) to prevent moisture damage, while our dedicated account managers provide real-time order updates, and our after-sales team addresses concerns within 24 hours, ensuring your satisfaction.