Calcium Silicon Alloy For Steelmaking Ca Si C Al P S 0-2mm 10-50mm Steelmaking Additive

Direct Sales Ca, Si, C, Al, P, S 0-2mm 10-50mm Calcium Silicon Alloy

Silicon calcium (Si-Ca) is an alloy composed primarily of silicon (Si) and calcium (Ca), often used in metallurgical processes, particularly in the steelmaking and cast iron industries. It is typically produced in a furnace by reducing silica (SiO₂) and lime (CaO) with a reducing agent such as carbon. The alloy usually contains varying proportions of silicon and calcium, with common compositions ranging from 30-60% silicon and 10-30% calcium, along with small amounts of other elements like aluminum, iron, and carbon.

Key Properties and Uses:

1. Deoxidizer:
   Silicon calcium is widely used as a deoxidizing agent in steelmaking. It helps remove oxygen from molten steel, improving its quality and reducing the formation of oxides that can weaken the final product.

2. Desulfurizer:
   The alloy is also effective in removing sulfur from molten metal, which enhances the mechanical properties and cleanliness of steel and cast iron.

3. Inoculant:
   In cast iron production, silicon calcium is used as an inoculant to modify the microstructure of the iron, promoting the formation of graphite and improving strength, ductility, and machinability.

4. Improves Fluidity:
   The addition of silicon calcium to molten metal can improve its fluidity, making it easier to cast and shape.

5. Reduces Inclusions:
   By reducing impurities and non-metallic inclusions, silicon calcium helps produce cleaner and higher-quality metal.

Specification

Particle size: 10-100mm,10- 50mm, 0-3mm, 2- 6mm and different granularities according to your needs.
 

Physical and Chemical Characteristics:

• Appearance: Silicon calcium is typically a grayish, metallic solid, often supplied in granular, lump, or powder form.

• Melting Point: The alloy has a relatively low melting point compared to pure silicon or calcium, making it easy to dissolve in molten metal.

• Reactivity: It is highly reactive, especially at high temperatures, which makes it effective in metallurgical processes.

 
Applications

• Steelmaking:

  • Deoxidizer: Silicon calcium is added to molten steel to remove dissolved oxygen, preventing the formation of oxides that can weaken the steel.

  • Desulfurizer: It helps remove sulfur from steel, improving its mechanical properties and reducing brittleness.

  • Inclusion Modification: It modifies the shape and distribution of non-metallic inclusions, enhancing the steel's toughness and ductility.

• Cast Iron Production:

  • Inoculant: Silicon calcium is used to improve the microstructure of cast iron, promoting the formation of graphite and enhancing strength and machinability.

• Non-Ferrous Metallurgy:

  • It is also used in the production of certain non-ferrous alloys, such as aluminum and magnesium alloys, to refine their structure and improve properties.

• Welding Electrodes:

  • Silicon calcium is sometimes added to welding electrode coatings to improve weld quality and reduce impurities.

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Packaging:Dark gray luster, 10-100mm granularity, polyethylene plastic bags, net weight of 1000KG per bag, gross weight of 1003KG per bag.
 

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