Silicon Metal is processed by excellent industrial silicon and including full varieties. Used in electro, metallurgy and chemical industry. It is silver gray or dark gray with metallic luster, which be of high melting point, good heat resistance, high resistivity and superior oxidation resistance. Metal Silicon is a very important industrial product can be used in steel-making, cast iron, aluminum (aviation, aircraft & automobile parts production), and silicon optoelectronic device and many other industries. It's known as the "salt" of modern industries. Metal silicon is made from quartz and coke in electric heating furnace smelting products. The main ingredient of silicon content is about 98%. The rest of impurities is iron, aluminum and calcium etc.
| Level |
Chemical Composition |
| Si |
Fe |
Al |
Ca |
| ≥ |
≤ |
| 553 |
98.5 |
0.5 |
0.5 |
0.3 |
| 551 |
98.7 |
0.5 |
0.5 |
0.1 |
| 441 |
98.5 |
0.4 |
0.4 |
0.1 |
| 421 |
99.3 |
0.4 |
0.2 |
0.1 |
| 411 |
99.4 |
0.4 |
0.1 |
0.1 |
| 3303 |
99.37 |
0.3 |
0.3 |
0.03 |
| 2502 |
99.48 |
0.25 |
0.25 |
0.02 |
| 2202 |
99.58 |
0.2 |
0.2 |
0.02 |
| 1101 |
99.79 |
0.1 |
0.1 |
0.01 |
| Element content, packaging, and particle size can be customized |
Differences in metal silicon models
553 has a relatively stable crystal structure and a small thermal expansion coefficient. It is mainly used as metallurgical raw materials in the foundry industry.
441 has high electrical conductivity and thermal conductivity, and is widely used in electronics, optoelectronics, semiconductors and other fields.
3303 has good corrosion resistance and is mainly used in chemical industry, building materials and other fields.
Although 553, 441, and 3303 are all metallic silicon materials, their chemical compositions, physical properties, and uses are different. Users should choose according to their specific needs when choosing.
Uses of metallic silicon
1. Silicone rubber
Silicone rubber has good elasticity and high temperature resistance, and is used to make medical supplies, high temperature resistant gaskets, etc.
2. Silicone resin
Silicone resin is used in the production of insulating paint, high-temperature coatings, etc.
3. Silicone oil
Silicone oil is an oily substance whose viscosity is very little affected by temperature. It is used to produce high-grade lubricants, polishes, fluid springs, dielectric liquids, etc. It can also be processed into a colorless and transparent liquid and sprayed as a high-grade waterproofing agent on building surfaces.
4. Manufacturing high-purity semiconductors
Modern large-scale integrated circuits are almost all made of high-purity metallic silicon, and high-purity metallic silicon is also the main raw material for the production of optical fibers. It can be said that metallic silicon has become a basic pillar industry in the information age.
production of silicone rubber, production of silicone resin, production of silicone oil, manufacturing of high-purity semiconductors, and preparation of alloys.
5. Preparation of alloys
Silicon-aluminum alloy is the most commonly used silicon alloy. Silicon-aluminum alloy is a strong composite deoxidizer. Replacing pure aluminum in the steelmaking process can improve the utilization rate of the deoxidizer, purify the molten steel, and improve the quality of the steel. Silicon-aluminum alloy has low density, low thermal expansion coefficient, good casting performance and anti-wear performance. Alloy castings cast with it have high impact resistance and good high-pressure densification, which can greatly increase the service life. It is commonly used in the production of aerospace vehicles. and auto parts.
Q&A
Q: Are you a factory or a trading company?
A: We are factories and trading company.
Q: How to place order ?
A: Buyer send enquiry →get quotation → order confirmation→ Buyer arrange 30% deposit → Production started upon receipt of deposit→ Strict inspection during production → Buyer arrange balance payment
→ Packing → Delivery as per trade terms
Q: Can I have my own LOGO on the product?
Yes, you can send us your design and we can make your LOGO.
Q: Can you arrange the shipment?
Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to
quantity.
Q:Can we get the some samples?Any charges?
A: Yes , we could offer the sample for free charge but do not pay the cost of freight . If you place the order after confirm the sample , we will refund your express freight or deducte it from the order amount .
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.
Q: What is your terms of payment ?
A: 30% T/T deposit , 70% balance by T/T or L/C before shippment.
Proveedor Auditado 
Proveedor Auditado 
