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Silicon Metal — 553, 441, 3303 and 2202 grades (CAS 7440-21-3) in lumps, granules and powder. Serving aluminium smelters and secondary alloy plants, silicone producers, steel mills and chemical manufacturers across the UAE and GCC.
Product Overview
Silicon Metal is produced by carbothermic reduction of high-purity quartz in a submerged-arc furnace, yielding a grey, lustrous, brittle metalloid of 98.5% to 99.5% silicon. Commercial grades are named for their maximum iron, aluminium and calcium content — 553, 441, 3303 and 2202 — with lower numbers meaning tighter impurity limits.
Aluminium alloying is the largest single use. Silicon improves castability, reduces shrinkage and raises wear resistance in automotive and extrusion alloys, making it essential for secondary smelters and die casters.
Chemical grades feed the silicones industry, where silicon reacts with methyl chloride to make siloxane polymers, and ultra-refined silicon goes on to polysilicon for solar and semiconductors. Chelora Chemicals UAE supplies metallurgical and chemical grades across the UAE and wider GCC.
Technical Specifications
Key physical and chemical properties of Silicon Metal as supplied by Chelora Chemicals UAE. Grade-specific data sheets available on request.
| Property | Typical Value |
|---|---|
| CAS Number | 7440-21-3 |
| Chemical Symbol | Si |
| Atomic Weight | 28.086 g/mol |
| Physical State | Grey metallic lumps or powder |
| Density | 2.33 g/cm³ at 20 °C |
| Melting Point | 1,414 °C |
| Boiling Point | 3,265 °C |
| Crystal Structure | Diamond cubic |
| Solubility in Water | Insoluble |
| Odour | Odourless |
| Property | Typical Value |
|---|---|
| Silicon (Si) | ≥ 99.0% |
| Iron (Fe) | ≤ 0.40% |
| Aluminium (Al) | ≤ 0.40% |
| Calcium (Ca) | ≤ 0.10% |
| Titanium (Ti) | ≤ 0.05% |
| Phosphorus (P) | ≤ 50 ppm |
| Grade 553 (comparison) | Fe ≤ 0.50%, Al ≤ 0.50%, Ca ≤ 0.30% |
| Grade 3303 (comparison) | Fe ≤ 0.30%, Al ≤ 0.30%, Ca ≤ 0.03% |
| Lump Size | 10–50 mm / 10–100 mm |
| Powder Mesh | 0–0.5 mm / 325 mesh on request |
* All values are typical ranges for standard commercial Silicon Metal grades. Precise values depend on the production source and grade. Contact Chelora Chemicals UAE for grade-specific technical data sheets and SDS.
Need 553, 441 or chemical grade silicon metal for your furnace or reactor?
Request Technical DatasheetApplications
Silicon metal underpins the aluminium, silicone and solar value chains served from the UAE and across the GCC.
Improves castability, strength and wear resistance in Al-Si alloys.
Chemical-grade feedstock for siloxanes, sealants and fluids.
Starting material for refined polysilicon and PV wafers.
Deoxidiser and alloying agent in steel and cast iron.
Silicon carbide and high-temperature ceramic production.
Silicon powder for next-generation lithium-ion anode materials.
Industries Served
Chelora Chemicals UAE supplies Silicon Metal to aluminium, chemical, steel and energy sectors, backed by technical support and fast in-country delivery.
Primary and secondary alloy producers.
Al-Si casting alloy users.
Siloxane, sealant and fluid producers.
Deoxidation and alloying additions.
Refiners feeding PV supply chains.
SiC and high-temperature ceramics.
Silicon-based intermediate manufacturers.
Regional traders supplying silicon across the GCC, Middle East and Africa.
UAE & GCC Coverage
Our UAE-based storage and Jebel Ali logistics position ensure fast Silicon Metal delivery to all emirates and GCC export markets.
Same-day and next-day Silicon Metal delivery within Dubai, including Jebel Ali FZ, Al Quoz and DIP industrial users.
Serving ICAD, Musaffah and KIZAD manufacturers with Silicon Metal for aluminium, steel and chemical production.
Silicon Metal supply to Sharjah Industrial Area, SAIF Zone and Hamriyah FZ manufacturers.
Delivery to Ajman Industrial Area and Ajman Free Zone supporting foundries and metal distributors.
Supply to RAK Industrial Zone and RAKIA manufacturers requiring Silicon Metal.
Fujairah Free Zone and port area customers served with Silicon Metal for local use and bulk export.
UAQ Free Trade Zone industrial customers supplied with competitive Silicon Metal pricing and reliable same-week delivery.
Regular Silicon Metal exports to Saudi Arabia, Qatar, Kuwait, Bahrain, Oman and wider MENA. Full freight, customs documentation and COO support available.
Packaging Options
Chelora Chemicals UAE supplies silicon metal in 1 MT jumbo bags for smelters and alloy plants, and in 25 kg bags or drums for smaller chemical and foundry users. Lump sizing is screened to your specification before despatch.
Every consignment is sampled and analysed for silicon, iron, aluminium and calcium, with the certificate issued against the agreed grade.
1 MT FIBC for smelters.
Small-batch foundry use.
Bulk export loads.
From UAE warehouse to your plant.
How To Order
Six simple steps to receive Silicon Metal at your facility anywhere in the UAE or GCC.
Provide your required grade (553, 441, 3303, 2202 or chemical), lump or powder sizing and volume. Our team can advise if needed.
Submit your inquiry via our online contact form, email or telephone. We provide competitive pricing with a formal written quote within 24 hours. Volume discounts apply for larger quantities.
Receive the batch Certificate of Analysis confirming silicon assay and Fe, Al, Ca limits, together with the GHS-compliant Safety Data Sheet, before order confirmation.
Confirm your order in writing. Standard credit terms are available for approved customers. New customers can arrange advance payment or letter of credit for large shipments.
Select from our UAE door-to-door delivery service, Jebel Ali Free Zone warehouse collection, or let us arrange freight for GCC and wider export destinations.
Silicon Metal is delivered with full documentation. Inspect the batch on receipt against the CoA. Our technical support team remains available for any process or reorder queries.
Quality & Safety
Chelora Chemicals UAE sources Silicon Metal from globally recognised smelters operating under ISO 9001 quality management systems. Every batch is supplied with a Certificate of Analysis (CoA) confirming silicon content and iron, aluminium, calcium and titanium levels against the published grade specification.
Safety Note: Silicon metal in lump form is not classified as hazardous, but fine silicon powder is a combustible dust and can form explosive clouds. Contact with water or moisture in some conditions may release hydrogen. Control dust, avoid ignition sources and consult the full SDS before handling.
Why Chelora
Silicon Metal is held in UAE storage, enabling same-day or next-day delivery to Dubai, Abu Dhabi, Sharjah and all other emirates.
553, 441, 3303, 2202 and chemical grade, screened to your lump or powder sizing.
Every shipment is accompanied by a batch-specific Certificate of Analysis, a GHS-compliant Safety Data Sheet and Technical Data Sheet. Export orders include Certificates of Origin and all required customs documentation.
Our strong smelter relationships and Jebel Ali logistics advantage allow us to price Silicon Metal competitively across the GCC, from single bags to full container loads.
Cargoes are sampled and certified by independent surveyors for quality and quantity.
Our bilingual (English/Arabic) sales and technical team provides rapid responses to inquiries, proactive recommendations, order status updates and after-delivery support.
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FAQ
Silicon Metal is used as an alloying element in aluminium castings and extrusions, as feedstock for silicones and siloxanes, as a deoxidiser in steel, and as the starting material for polysilicon used in solar panels and semiconductors.
The CAS number for Silicon Metal (Si) is 7440-21-3, with EINECS 231-130-8. It is traded under HS code 2804.69 below 99.99% silicon and 2804.61 at or above that purity.
The three digits give the maximum iron, aluminium and calcium content as tenths of a percent. Grade 553 allows up to 0.5% Fe, 0.5% Al and 0.3% Ca; 441 tightens this to 0.4%, 0.4% and 0.1%; 3303 is tighter still at 0.3%, 0.3% and 0.03%.
Silicon improves fluidity in the melt, reduces solidification shrinkage and cracking, and raises hardness and wear resistance. That combination makes Al-Si alloys the standard for engine blocks, wheels and die castings.
Chelora Chemicals UAE is a dedicated Silicon Metal supplier serving all seven UAE emirates. We stock 553, 441, 3303 and chemical grades in lumps, granules and powder, serving aluminium, foundry, silicone and steel industries across Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah and Umm Al Quwain.
Yes. Chelora Chemicals UAE delivers Silicon Metal to all seven UAE emirates — Dubai (including Jebel Ali FZ, Al Quoz and DIP), Abu Dhabi (Musaffah, ICAD, KIZAD), Sharjah (SAIF Zone, Hamriyah FZ), Ajman, Ras Al Khaimah, Fujairah and Umm Al Quwain — as well as to Saudi Arabia, Qatar, Kuwait, Bahrain, Oman and other GCC countries.
Silicon metal in lump form is not classified as hazardous. Fine powder, however, is a combustible dust that can form explosive clouds, so dust control, earthing and ignition-source management are essential. Always consult the batch-specific SDS.
Chelora Chemicals UAE supplies Silicon Metal in 1 MT jumbo bags (smelters and alloy plants), 25 kg bags (foundries and small batches), bulk container loads (high-volume contracts) and sealed drums for fine powder grades.
Yes. Chelora Chemicals UAE regularly exports Silicon Metal to Saudi Arabia, Qatar, Kuwait, Bahrain, Oman and wider markets across Asia, Africa and Europe, leveraging our proximity to Jebel Ali Port. We handle export logistics including freight forwarding, customs documentation, certificate of origin (COO) and safety data sheets in Arabic and English.
Get a Quote Today
Chelora Chemicals UAE holds Silicon Metal in stock in 553, 441, 3303 and chemical grades. Request a quote and receive a response within 24 hours. UAE delivery, GCC export and full documentation available.