Products Description

Calcium Silicon powder is an alloy powder composed of silicon (Si) and calcium (Ca), usually made by melting silica and limestone and then atomizing them, appearing as gray white particles. Its typical composition ratio is 55% -65% silicon, 25% -35% calcium, and contains a small amount of impurities such as iron and aluminum. It has the characteristics of low melting point (about 1200 ℃) and high chemical activity, and is widely used in the industrial field.

Application Area

Ferrous metallurgy

Deoxygenation and purification: replacing traditional ferrosilicon or aluminum, efficiently deoxidizing and forming easily separable calcium silicate, improving the purity of molten steel.

Alloy additives: optimize the performance of steel (such as corrosion resistance and strength), used in the production of special steel.

Foundry Industry

Improving casting quality: Adding molten iron reduces porosity and slag inclusion, enhances fluidity, and improves the density of the finished product.

Chemical industry

Reducing agent: participates in the reduction reaction of metals such as vanadium and titanium; Used as a desulfurizer to reduce pollutant emissions.

New materials field

Welding materials: improve the crack resistance of welding rods;

3D printing: As a metal powder raw material, it meets the requirements of rapid prototyping technology.

Environmental Applications

Flue gas treatment: auxiliary desulfurization; Wastewater treatment: adsorption of heavy metal ions.

Core advantages
Efficient Deoxygenation

The high activity of calcium accelerates deoxygenation, causing products to float up quickly and reducing inclusions by 30% -50% (compared to traditional deoxidizers).

Cost effectiveness

Less usage (saving 20% -30% usage), although the unit price is high, the overall cost is lower.

Material performance improvement

Enhance the ductility and fatigue resistance of steel, and increase the casting yield by about 15%.

Environmentally friendly

Reduce smoke and dust emissions during the deoxygenation process; Calcium based components assist in the removal of sulfur and phosphorus impurities, which is in line with the trend of green production.

Flexible application

The powder form is convenient for precise addition, suitable for automated production needs, and particularly suitable for continuous casting processes.

Precautions

Storage: It needs to be moisture-proof and sealed to avoid oxidation and failure.

Safety: There is a risk of dust explosion, and it is necessary to operate in an anti-static and ventilated environment.

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Products Parameter

Brand	Chemical Composition(%)
	Si	Ca	C	P	S	Fe
	content		≤(max)			Fe
Ca30Si60	60	30	0.8	0.04	0.08	Balance
Ca30Si55	55	30	0.8	0.04	0.08	Balance
Ca30Si50	50	30	0.8	0.04	0.08	Balance
Ca28Si55	55	28	0.8	0.04	0.08	Balance
Ca28Si50	50	28	0.8	0.04	0.08	Balance