Silicon Barium Calcium Inoculant, also known as SiBaCa inoculant, is a high-performance alloy used in the inoculation of gray cast iron and ductile iron. It is composed primarily of silicon (Si), barium (Ba), and calcium (Ca), elements that are essential for promoting graphite formation and refining the microstructure of cast iron. This inoculant is highly effective in enhancing the mechanical properties of iron and reducing casting defects.
Key Features of Silicon Barium Calcium Inoculant
1. Strong Nucleation Effect
Effectively increases the number of graphite nuclei, promoting uniform graphite distribution in cast iron.
2. Excellent Anti-Chill Performance
Significantly reduces the formation of white iron (chilling tendency), ensuring better machinability.
3. Stable Inoculation Performance
Provides long-lasting inoculation even during longer holding times in the ladle or furnace.
4. Improved Mechanical Properties
Enhances tensile strength, toughness, and elongation in ductile and gray iron castings.
5. Deoxidizing and Desulfurizing Effects
Calcium and barium in the alloy help remove oxygen and sulfur, improving iron purity.
Chemical Composition of SiBaCa Inoculant
Grade | chemical composition(%) | |||||
Si | Ba | Ca | C | P | S | |
≥ | ≤ | |||||
Si50Ba15Ca10 | 50 | 15 | 10.0 | 0.40 | 0.05 | 0.05 |
Si50Ba13Ca13 | 50 | 13 | 13.0 | 0.40 | 0.05 | 0.05 |
Si50Ba16Ca8 | 50 | 16 | 8.0 | 0.40 | 0.05 | 0.05 |
Si45Ba10Ca8 | 45 | 10 | 8.0 | 0.40 | 0.05 | 0.05 |
Si45Ba15Ca10 | 45 | 15 | 10.0 | 0.40 | 0.05 | 0.05 |
Note: The composition ratio and granularity can be adjusted according to user requirements |
Silicon Barium Calcium Inoculant
Main Uses of Silicon Barium Calcium Inoculant
1. Ductile Iron Casting
Used to enhance graphite spheroidization and improve mechanical strength.
2. Gray Iron Casting
Applied to increase graphite flake formation and improve thermal conductivity.
3. Automotive Industry
Ideal for manufacturing high-strength engine parts, brake components, and housings.
4. Pipe and Valve Production
Ensures tight structure and leak-free performance in water or gas pipes and valve castings.
5. Machine Tool Components
Improves hardness, wear resistance, and internal structure uniformity.
6. Foundries Requiring High Precision
Preferred in complex casting projects requiring stable inoculation and fine microstructure.
Why Choose Hongshun Silicon Barium Calcium?
1. Direct Factory Supply – Competitive Pricing
As a manufacturer with in-house production, Hongshun offers factory-direct pricing, eliminating middlemen and ensuring excellent cost-efficiency.
2. Customized Composition and Particle Size
We offer flexible chemical composition and granularity based on customer requirements. Common sizes include 0–0.5mm, 1–3mm, 3–8mm, etc., suitable for different casting processes.
3. Consistent Quality – Stable Performance
Produced using advanced smelting and screening technology, our SiBaCa inoculant guarantees stable inoculation effects, low fading, and uniform structure in cast iron.
4. Strong Production Capacity
With multiple ferroalloy production lines and strict QC systems, Hongshun ensures fast delivery and reliable supply. Standard lead time is 7–15 days.
5. Excellent Location and Logistics
Located in Anyang, Henan – a hub for ferroalloy production – Hongshun benefits from mature supply chains and convenient transport networks, enabling timely delivery and full support.
6. Full Technical and After-Sales Support
Our experienced team provides guidance on the selection, application, and optimization of silicon barium calcium to meet your specific casting needs.