Previous slide
Next slide

Silicon Metal 553

Silicon metal is a gray and shiny semiconductor metal, also known as crystalline silicon or industrial silicon, is mainly used as an additive for non-ferrous alloys. The silicon metal is produced from quartz and coke in an electric furnace, and the content of silicon element is about 98% (in recent years, with the content of 99.99% Si is also named silicon metal), the other impurities are mainly iron, aluminum, calcium and so on. The classification of metallic silicon is according to the content of iron, aluminum and calcium, silicon metal can be divided into different grades such as 553, 441, 411, 3303, 2202, and 1101.

What is silicon metal grade 553?
Silicon metal 553 is a commonly used grade. In the metal silicon 553, the silicon content should be as high as 98.5%. The contents of iron, aluminum, and calcium are 0.5%, 0.5%, and 0.3% respectively. Silicon 553 and silicon 441 are mainly used in the production of aluminum ingots. Adding silicon metal to aluminium alloys makes them strong and light.

Silicon metal 553 specifications:

Silicon metal 553 generally the diameter is 10-50mm,50-100mm,10-100mm or other sizes as customer’s request. Silicon metal is a gray and shiny semiconductor metal, also known as crystalline silicon or industrial silicon, is mainly used as an additive for non-ferrous alloys which smelted from quartz and coke in an electric furnace.

Uses of Silicon metal 533 :

Silicon metal 553 is widely used in refractories, powder metallurgy industry, it is an excellent antioxidant. Adding silicon metal 553 in the refractory material can first react with oxygen to form a new mineral phase, close the pores, improve the density, prevent the penetration of slag iron, so as to improve the product’s high temperature resistance, wear resistance and oxidation resistance of the product.

Purpose of silicon metal:

1. Use for Al alloy product: could be added in aluminum alloys, to enhance the strength of the alloy, increase its anti-oxidation and corrosion resistance, decrease its density and coefficient of thermal expansion, meliorate its casting performance, and make the alloy have a high impact resistance and pressure resistance.

2. Used for cold-rolled silicon steel product: After add silicon metal in steel, it could greatly improve the magnetic properties of steel, increase its permeability, reducing the hysteresis and eddy current losses.

3. Use for high purity semiconductor product: Due to the high melting point of silicon, good thermal stability, large band gap, rich in resources, with technology has been improving, integrated circuits and large-scale integrated circuits which made from silicon semiconductor have been used in various fields, the demand is growing up year by year.

4. Use for organic silicon product: silicone, silicon resin, silicone oil Silicone: Maintain flexibility in the range of-700℃ to 2000℃, could be used for high temperature gaskets and cold insulation materials. Silicon resin: For the production of insulating paint, heat temperature of 180 ~ 2000℃, can also be used for the production of high temperature coatings. Silicone oil: For the production of senior lubricant, polishing agent, fluid spring, and the dielectric liquid, also could be processed into a colorless transparent liquid, sprayed on the building for waterproofing. Silicon metal is more and more widely used in organic silicon industry, the usage amount is tend to exceed aluminum alloy industry.

5. Use for heat-resisting material product: For the production of Si3N4, heat-resistant, wear-resistant, and corrosion-resistant. Making the coated material can prevent oxidation. Siliconized steel surface can improve the corrosion resistance of the steel.

Silicon metal lumpContent(%)
Standard lump size: 10-100mm
Standard packing: Ton bags, 1Mt/Bag
Both size and packing can be customized as clients’ requests


LYNK METAL RESOURCES LIMITED was established in the year 2008, geographically located in China’s Fujian, a southeastern Chinese province known for its mountains and coastal cities. Lynk Metals earned a remarkable position in manufacturing and supplying silicon metal internationally with competitive price and unparalleled quality. Our two factories equipped with five furnaces and our own hydro power stations make the production and its supply consistent. Our advanced and secure logistics management system aided in delivering the services smooth and easy all around the globe within limited time helping us to excel in the metallurgical industry in and out of China.

Delivery of good quality industrial silicon at a reasonable price made our products outstanding and opened the path to access both domestic and international markets. Our products are tested at multiple stages and to produce an output of high quality. To ensure the quality we have established a professional laboratory within the factories where the tests are carried out at different stages.  Lynk Metals quality management and environmental management is applied with ISO9001:2008 and ISO14001:2004 standard strictly.

 Lynk Metals has become a giant in supplying the products by expanding the connections with customers all over Japan, South Korea, Thailand, India, South America, Middle East, Europe etc. Lynk Metals has always valued the customers and makes it hassle free to get in touch with us.

Besides the offices in China Lynk Metals has an office in Dubai (UAE) which helps in linking to a multitude of customers. The motive behind establishing an office in Dubai is to connect with the customers, when they find it hard to reach China we bring our service to you, easily accessible from anywhere in the world.

The journey of Lynk metals was smooth with a positive graph all these years because of our friendly approach to the customers and the trusted-quality long term services we provide. With strong technical strength and advanced equipment we reach the production capacity above 40,000mt annually.  Our superior product grades marking high demand in the industry include Silicon-553, 551, 421,411,441, 3303, 2501, 2502, 2202, etc. Lynk Metals is devoted to the international trading business with an extensive and diversified supplier network for high quality ferroalloy in ferro silicon, nodulizer, silicon briquette, silicon slag etc.

Choose us for customized products of your need, we make it possible what the specifications or dimensions are. You don’t need to worry about the location and reaching there to check the quality, because you will get the free samples in your hand for free from us irrespective of your location.