Product Introduction
Ferro Silicon Barium Inoculant is a high-performance inoculant specially developed for gray iron and ductile iron production. It is composed primarily of silicon, barium, calcium, and aluminum. The addition of barium significantly prolongs the inoculation fading time, promotes uniform distribution of Type A graphite, reduces chilling tendency in thin-walled castings, and improves tensile strength and machinability.
This product is widely used in ladle inoculation, in-mold inoculation, and late-stream inoculation processes in foundries. It offers excellent nucleation capacity and is particularly suitable for high-strength, thin-wall, and complex-shaped castings.
Typical Chemical Composition (%)
| Grade | Si (%) | Ba (%) | Ca (%) | Al (%) | Fe (%) |
|---|---|---|---|---|---|
| FeSiBa-1 | 70–75 | 4–6 | 1.0–2.0 | ≤ 1.5 | Balance |
| FeSiBa-2 | 68–72 | 2–4 | 1.0–1.5 | ≤ 1.2 | Balance |
| FeSiBa-3 | 65–70 | 1–2 | 0.5–1.5 | ≤ 1.0 | Balance |
Customized composition available upon request.
Available Sizes
| Application | Grain Size (mm) |
|---|---|
| Ladle inoculation | 3–8, 4–10 |
| In-mold inoculation | 0.2–1, 1–3 |
| Late-stream inoculation | 0.2–0.8, 0.5–1.5 |
Fines and dust content strictly controlled.
Key Advantages
Longer fading resistance – Barium extends effective inoculation time
Reduces carbide and chill – Ideal for thin-wall castings
Improves graphite shape – Promotes uniform Type A graphite
Enhances mechanical properties – Better tensile strength and machinability
Customizable – Composition and sizing available per customer specification
Typical Applications
Ferro Silicon Barium Inoculant is primarily designed for gray iron and ductile (nodular) iron production in foundries. Its most common application is ladle inoculation, where the inoculant is added into the ladle during or immediately after molten iron tapping. The presence of barium significantly prolongs the fading resistance (up to 30–50% longer than conventional FeSi), ensuring consistent nucleation and graphite formation even when the pouring process is delayed. This makes it particularly suitable for large-volume casting lines, automotive foundries, and heavy-section castings where uniform mechanical properties across the entire batch are critical. Additionally, when used in in-mold inoculation, the fine particle size (0.2–3mm) is placed directly inside the mold runner system, providing localized, high-efficiency inoculation right before solidification. This application is ideal for thin-walled castings (2–5mm wall thickness) , complex-shaped components such as pump housings, valve bodies, and turbocharger parts, where chilling and carbide formation must be minimized.
Additional Packaging Highlights
Palletizing: 25 kg bags can be shrink-wrapped and strapped on export-grade wooden pallets (usually 40 bags per pallet = 1 MT).
Labeling: Each bag is clearly marked with product name, grade, grain size, net weight, batch number, and manufacturing date.
Custom marking: OEM labels, neutral packaging, or customer-specific barcode stickers are available upon request.
Container loading: A standard 20-foot container holds approximately 20–22 MT (22 jumbo bags or 880 × 25 kg bags); a 40-foot container holds about 25–28 MT.
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