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What Is Silicon Calcium? What Is The Price Of Calcium Silicon Per Kg?

What is silicon calcium?

 

 

Silicon calcium (Ca-Si) is a binary alloy composed primarily of calcium (Ca) and silicon (Si), often with small amounts of iron (Fe) as a base metal. It is a specialty master alloy used in metallurgy. Calcium content typically ranges from 30–60%, with silicon at 20–50%, depending on the application. Its key role is as a deoxidizer, desulfurizer, and alloying agent in steel and cast iron production, leveraging calcium's high reactivity to remove impurities and silicon's strength-enhancing properties.

China's export price of calcium silicon on August 18
Products (natural blocks) Brand Today's price of calcium silicon (US dollars/ton) Remarks (FOB)
Calcium Silicon ca30si60 1370-1410 Tianjin Port
Calcium Silicon ca28si58 1360-1400 Tianjin Port
China's calcium silicon price on August 18
product Brand Calcium silicon manufacturer's price quote (yuan/ton) Today's transaction price of calcium silicon (yuan/ton) area
Calcium Silicon National standard ca1 9500-9600 9400-9500 Shaanxi
Calcium Silicon National standard ca2 9400-9500 9300-9400 Shaanxi
Calcium Silicon National standard ca1 9500-9600 9400-9500 Ningxia
Calcium Silicon National standard ca2 9400-9500 9300-9400 Ningxia
Calcium Silicon National standard ca1 9500-9600 9400-9500 Inner Mongolia
Calcium Silicon National standard ca2 9400-9500 9300-9400 Inner Mongolia
Calcium Silicon ca28si55 8400-8600 8300-8500 Henan
Calcium Silicon ca28si50 7300-7500 7200-7400 Henan
China's silicon, barium and calcium prices on August 18
Note: Cash ex-factory including tax
product content Today's price of silicon, barium and calcium (yuan/ton) Today's transaction price of silicon, barium and calcium (yuan/ton) area Production process
Silicon barium calcium Si50-52 Ba13 Ca13 7900-8100 7800-8000 Henan Medium frequency furnace
China's calcium metal price on August 18
product index Quote Sold Price area
Crude metallic calcium Ca≥96% 15800-16000 15500-16000 Shanxi
Metal calcium wire Ca≥97%, Φ6.5-8.5mm (ton bag/iron drum) 18900-19100 18800-19000 Henan
Metal calcium particles Ca≥96%, 0-3mm (new barrel) 18600-18800 18500-18700 Henan
Note: Cash price including tax, RMB/ton
August 18 China calcium silicon, silicon barium, and metallic calcium market summary
(1) National standard calcium silicon (yuan/ton, tax included)
Brand area Transaction price on August 15 Transaction price on August 18
National standard Ca1 Shaanxi 9400-9500 9400-9500
Ningxia 9400-9500 9400-9500
Inner Mongolia 9400-9500 9400-9500
National standard Ca2 Shaanxi 9300-9400 9300-9400
Ningxia 9300-9400 9300-9400
Inner Mongolia 9300-9400 9300-9400
ca28si55 Henan 8300-8500 8300-8500
ca28si50 Henan 7200-7400 7200-7400
(2) Silicon barium (yuan/ton, ex-factory price including tax)
Brand (natural block) area Transaction price on August 15 Transaction price on August 18
Si50-55Ba30 Inner Mongolia 6800-6850 6800-6850
Gansu 6850-6900 6850-6900
Si65-75Ba4-6 Qinghai 6050-6100 6050-6100
Ningxia 6300-6350 6300-6350
Si65-75Ba2-3 Ningxia 6300-6350 6300-6350
Smelting type inoculant Si≥68Ba4-6 (1-3/3-8mm) Inner Mongolia and Ningxia 6700-6800 6700-6800
Jiangsu and Shaanxi 6900-7100 6900-7100
(3) Metal Calcium Series (CNY/ton, tax included)
product area Transaction price on August 15 Transaction price on August 18
Crude metallic calcium Shanxi 15500-16000 15500-16000
Metal calcium wire Henan 18800-19000 18800-19000
Metal calcium particles Henan 18500-18700 18500-18700

How much should calcium silicon cost?

 

 

China's silicon barium price on August 18
Unit: Yuan/ton
variety Brand area Today's barium silicon price Today's silicon barium transaction price Remark
High barium alloy Si50-55Ba30 Inner Mongolia 6850-6900 6800-6850 Factory price including tax, natural block
Gansu 6850-6900 6850-6900 Factory price including tax, natural block
Low-barium alloy Si65-75Ba4-6 Qinghai 6050-6100 6050-6100 Factory price including tax, natural block
Ningxia 6300-6350 6300-6350 Factory price including tax, natural block
Si65-75Ba2-3 Ningxia 6300-6350 6300-6350 Factory price including tax, natural block
Si≥68Ba4-6 1-3/3-8mm Inner Mongolia and Ningxia 6700-6800 6700-6800 Ex-factory price including tax, inoculant
Jiangsu and Shaanxi 6900-7100 6900-7100 Ex-factory price including tax, inoculant

Ferro silicon calcium (Fe-Si-Ca), an alloy of iron (Fe), silicon (Si), and calcium (Ca), is widely used in steelmaking and foundry operations:
• Deoxidation & Desulfurization: Calcium and silicon react with oxygen and sulfur in molten steel, reducing impurities that cause brittleness or porosity.

• Alloying: Enhances mechanical properties (e.g., strength, ductility) in low-carbon steels, alloy steels, and stainless steels.

• Inclusion Modification: Converts harmful oxide/sulfide inclusions into harmless, fine particles, improving castability and surface finish.

• Nodular Cast Iron Production: Aids in spheroidizing graphite, critical for ductile iron components.

Ferro silicon barium (Fe-Si-Ba) is a ternary alloy consisting of iron (Fe), silicon (Si), and barium (Ba), with minor impurities (e.g., aluminum, manganese, calcium). Typical compositions are:
• Silicon (Si): 15–40% (varies by grade).

• Barium (Ba): 5–20% (key alloying element).

• Iron (Fe): Balance (~60–80%).

Higher barium content enhances deoxidation efficiency, while silicon improves fluidity. It is used in specialty steels and cast irons where precise control of impurities (e.g., oxygen, sulfur) is critical.

Metallic calcium is the pure elemental form of calcium (Ca), a soft, silvery-white alkali metal (Group 2 of the periodic table). It has a low melting point (~842°C) and high reactivity, making it difficult to handle in air (it oxidizes rapidly) or water (it reacts violently to produce hydrogen gas). It is produced industrially via electrolysis of molten calcium chloride (CaCl₂) in a Downs cell. Metallic calcium is used as a reducing agent in metallurgy (e.g., extracting rare earth metals), an alloying additive (to improve strength in aluminum or magnesium alloys), and in chemical synthesis (e.g., producing calcium carbide or calcium-based catalysts).

Visit ferro-silicon-alloy.com to learn more about the product. If you would like to know more about the product price or are interested in purchasing, please send an email to info@zaferroalloy.com. We will get back to you as soon as we see your message.

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