Silicon Aluminum Calcium Composite Deoxidizer is a high-performance functional alloy material, mainly composed of silicon (Si), aluminum (Al), calcium (Ca), with trace impurities including carbon (C), phosphorus (P), and sulfur (S). It is available in lump, powder, or slag forms, with customizable sizes such as 0~3mm, 10~50mm, 10~60mm, 10~100mm, etc. Packaged in ton bags or as per customer requirements, it is widely applied in steel smelting and casting industries.

Core Properties & Element Functions

Silicon is an important component of the composite deoxidizer, and its content is usually within a certain range, such as 20% - 40%. Silicon has a strong affinity with oxygen and can effectively reduce the oxygen content in molten steel. The generated silicon dioxide can float up to form slag and be discharged.

Aluminum is also a key element, and its content is generally around 5% - 15%. Aluminum has a strong deoxidation ability and can quickly react with oxygen to form alumina. Alumina has a high melting point and can refine the grains of steel and improve the strength and toughness of steel.

Calcium can react with impurities such as sulfur and phosphorus in steel to generate calcium sulfide, calcium phosphate, etc., reduce the content of harmful impurities in steel, and at the same time improve the fluidity of steel slag, which is conducive to the discharge of deoxidation products.

Silicon Aluminum Calcium Composite Deoxidizer

chemical composition

Brand	Si	Al	Ca	P≤	S≤
Silicon Aluminum Calcium1	25~30	8~12	13~18	0.03	0.05
Silicon Aluminum Calcium2	30~40	8~10	13~16	0.03	0.05

Products Application

Steel smelting

Silicon aluminum calcium deoxidizers are widely used in the steelmaking process. Adding it in the late stage of converter steelmaking or during electric furnace steelmaking can effectively deoxidize, desulfurize and dephosphorize, and improve the quality of steel.

Casting industry

In the casting process, the composite deoxidizer also plays an important role. It can effectively remove oxygen from molten iron, reduce defects such as pores and slag inclusions in castings, and improve the quality and yield of castings.

Products Advantages

Superior comprehensive performance

It integrates multiple functions such as deoxidation, desulfurization, phosphorus and grain refinement. Compared with the use of multiple single deoxidizers, it can more comprehensively improve the quality of steel, simplify the steelmaking process and reduce production costs.

Efficient and economical

It has strong deoxidation ability and fast reaction speed, can quickly reduce the oxygen content in molten steel, reduce the residence time of molten steel in the furnace, and improve production efficiency. At the same time, due to its versatility, it reduces the use of other additives and reduces the cost of raw materials.

Strong adaptability

It can flexibly adjust the composition and addition amount according to the requirements of different steel grades and casting processes to meet diversified production needs and has good adaptability.

Silicon Aluminum Calcium Composite Deoxidizer

Hot Tags: silicon aluminum calcium composite deoxidizer, China silicon aluminum calcium composite deoxidizer manufacturers, suppliers, factory