Silicon Metal 553 and Silicon Metal 441 are high-purity industrial materials produced by smelting high-quality quartz and coke in submerged arc furnaces. The "Oxygen Blow" (O2 Blow) process is a specialized refining technique where oxygen is injected into the molten silicon to further reduce impurities such as Calcium (Ca) and Aluminum (Al). This results in a cleaner, more consistent product suitable for high-end industrial applications.

Why Choose Oxygen Blow (O2 Blow) Silicon?

The Oxygen Blowing process offers significant advantages over standard silicon metal:

Lower Impurity Levels: Specifically reduces Ca and Al content to meet strict industrial requirements.

Enhanced Homogeneity: Ensures a uniform chemical composition throughout the entire batch.

Improved Reactivity: Ideal for chemical synthesis and silicone production.

silicon metal 553(Oxygen)

chemical composition

Grade	Silicon (Si) Min	Iron (Fe) Max	Aluminum (Al) Max	Calcium (Ca) Max
553	98.5%	0.5%	0.5%	0.3%
441	99.1%	0.4%	0.4%	0.1%

Primary Applications

1. Aluminum Alloy Industry

Used as an essential alloying agent in the production of aluminum alloys . Adding silicon improves fluidity, reduces shrinkage, and increases the strength and wear resistance of aluminum castings used in the automotive and aerospace industries.

2. Silicone and Chemical Production

Silicon 441/ Silicon 553 serves as the raw material for producing silicones (silicone rubber, resins, and oils), silanes, and fumed silica. The low calcium content from the oxygen blow process prevents catalyst poisoning in chemical reactors.