98.5% Silicon Metal 553 10-50 mm

Silicon metal 553 is a material that can be used in many different ways. It has special properties that make it very useful in modern manufacturing. In aluminium die-casting, grade 553 silicon reduces shrinkage porosity and improves surface finish, enabling the production of complex components like engine manifolds and electronic device housings with minimal rework.

 We operate as a factory-direct provider, eliminating intermediaries to offer competitive rates, complemented by free samples, technical documentation, and certified test reports (lab and industry) to help you choose the optimal grade (441, 553, etc.).

 With 30 years of experience, 1.5 million tons annual output, and 300 staff, we maintain ample stock to fulfill urgent orders and customize products (e.g., alloy grades, packaging) to your exact needs.

 Our rigorous quality control includes ≥4 spectral/chemical tests per order-screening raw materials, in-progress batches, and final products-to ensure compliance with ASTM, ISO, and customer-specific criteria, guaranteeing reliable supply for your projects.

 We prioritize logistical efficiency: our metal silicon is sealed in 10kg/25kg waterproof bags within 1MT bulk sacks (or custom packaging) to protect against moisture damage, while our dedicated account managers provide end-to-end order tracking, and our after-sales team resolves queries within 24 hours, ensuring a smooth procurement experience.