Silicon Metal Products

Silicon metal 97% lump appearance showing metallic luster, silver-gray color, typical irregular lump shape - Bright Alloys
Best Seller

Silicon Metal 97%

Si: 97% min, Fe: 1.5% max, Ca: 0.3% max. Cost-effective grade for secondary aluminum refining.

  • Ideal for aluminum casting & deoxidization
  • Controlled low iron & calcium content
  • Available in 10–100mm lumps or granules
Silicon metal 331 lump appearance showing metallic luster, silver-gray color, typical irregular lump shape - Bright Alloys

Silicon Metal 331

Si: 98.5% min, Fe: 0.3%, Al: 0.3%, Ca: 0.1%. Common grade for aluminum extrusion and automotive alloys.

  • Tight chemistry for high‑strength aluminum
  • Low impurity profile (Fe+Al+Ca ≤ 0.7%)
  • Custom sizing: lump, 1–6 mm, or powder
Silicon metal 441 lump appearance showing metallic luster, silver-gray color, typical irregular lump shape - Bright Alloys

Silicon Metal 441

Si: 99% min, Fe: 0.4%, Al: 0.4%, Ca: 0.1%. Widely used in primary aluminum and polysilicon feedstock.

  • Excellent for aluminum alloying
  • Stable composition, consistent quality
  • 10–100 mm lumps or tailored fractions
Silicon metal 553 lump appearance showing metallic luster, silver-gray color, typical irregular lump shape - Bright Alloys

Silicon Metal 553

Si: 98.5% min, Fe: 0.5%, Al: 0.5%, Ca: 0.3%. Versatile grade for steelmaking and foundries.

  • Effective deoxidizer in steel production
  • Compatible with cast iron innoculation
  • Lump, grit, or custom sizing available
Silicon metal 1101 lump appearance showing metallic luster, silver-gray color, typical irregular lump shape - Bright Alloys
Premium

Silicon Metal 1101

Si: 99.5% min, Fe: 0.1%, Al: 0.1%, Ca: 0.01%. High‑purity grade for organic silicone and electronic applications.

  • Ultra‑low trace elements for chemical synthesis
  • Ideal for silicone monomer production
  • Carefully packaged to maintain purity
customize silicon metal lump,grain and powder,Si content 90-99.99%,low impurities
Custom Grade

Custom Silicon Metal

Precision-engineered silicon metal with chemical composition (Si, Fe, Al, Ca, etc.) and particle size tailored to your exact specifications.

  • Tailor purity from standard metallurgical to ultra-high-purity grades (Si >99.99%) for organic silicone or electronic applications.
  • Precise control over trace elements (Fe, Al, Ca, P, B) to meet the rigorous demands of chemical synthesis and semiconductor industries.
  • Customizable sizing from lumps, granules, to fine powders, optimized for your specific process and handling requirements.

Silicon Metal Different Grades Comparison

GradeSi (%)Fe (%)Al (%)Ca (%)Typical use
Silicon Metal 97≥97≤1.5≤1.0≤0.5General metallurgy and deoxidation
Silicon Metal 331≥99≤0.3≤0.3≤0.1Aluminium alloys, chemical use
Silicon Metal 441≥99≤0.4≤0.4≤0.1Primary and secondary aluminium casting
Silicon Metal 553≥98.5≤0.5≤0.5≤0.3Aluminium casting (ADC12, LM series)
Silicon Metal 1101≥99.5≤0.1≤0.1≤0.01Silicone and polysilicon feedstock
Custom gradesOn requestOn requestOn requestOn requestTailored chemistry and particle size
Loading product overview...

What Is Silicon Metal?

Silicon metal, also called industrial silicon, is a silver-grey crystalline metalloid produced by reducing quartz with carbon in a submerged arc furnace. Commercial grades contain 97–99.5% Si, with iron, aluminium and calcium as the main impurities.

Bright Alloys supplies silicon metal in lumps, granules and powder for aluminium alloying, silicone and polysilicon feedstock, and as a deoxidiser in steelmaking.

Applications and Performance

Aluminium Alloys

Silicon metal 441 and 553 are the workhorses of primary and secondary aluminium casting, improving fluidity and strength in A356, ADC12 and LM-series alloys.

Steelmaking Deoxidation

Silicon metal raises silicon content while lowering dissolved oxygen, and is charged in EAF and BOF heats where tight residual control is required.

Silicone and Chemical Grade

Chemically refined grades such as 1101 feed silicone monomer and polysilicon routes that demand very low Fe, Al and Ca.

Why Choose Bright Alloys Silicon Metal

Technical Support & Services

🔬

Technical Consultation

Our metallurgical experts provide application guidance and technical support for optimal alloy selection and usage.

📊

Custom Formulations

We develop tailored alloy compositions to meet specific customer requirements and application needs.

🚚

Logistics Solutions

Efficient global supply chain management ensuring timely delivery and optimal packaging for product integrity.

Can't Find What You're Looking For?

We specialize in custom alloy formulations. Contact us with your specific requirements for a tailored solution.

Request Custom Alloy

Silicon Metal FAQs

What are the different grades of silicon metal available? +

We supply grades 97, 331, 441, 553, and 1101, each with specified purity and impurity limits to match different industrial requirements.

What is silicon metal 441 typically used for? +

Silicon metal 441 is widely used in primary aluminum casting, polycrystalline silicon feedstock, and as a deoxidizer in steelmaking due to its balanced purity and cost-effectiveness.

How do I choose the right silicon metal grade? +

Selection depends on your final application and impurity tolerance. Contact our technical team for guidance based on your specific alloy or chemical process.

What packaging and shipping options are available? +

We offer ton bags, drums, or bulk shipment. Customized packaging is available upon request via our inquiry form.

What certifications do your silicon metal products have? +

Our production is ISO 9001 certified. Chemical analysis reports are provided with every shipment. Learn more about our quality commitment.

How to get the latest silicon metal price? +

Contact us for today's factory price via WhatsApp (+86-18637293997) or email for today's factory direct price. We offer competitive pricing with MOQ from 10MT, include quality certificates, and ship worldwide within 7 days. Request a quote now for bulk order discounts.

How to import silicon metal to USA? +

We export silicon metal to USA ports regularly with correct HS classification and complete documentation (commercial invoice, packing list, certificate of origin, SGS analysis). Typical lead time is 7-15 days after order confirmation; FOB, CIF and DDP terms are available. We also ship to Europe, Southeast Asia, Middle East and 120+ countries worldwide. Contact us for a landed-cost quote to your nearest port.

Online Chat

Lily
Hello! How can i assist you today?