FeSi70 Ferro Silicon Deoxidizer for Stable Silicon Addition

FeSi70 ferro silicon is a 70% silicon ferroalloy used as a deoxidizer and silicon additive in steelmaking. It gives your furnace stronger silicon input than FeSi65, while still keeping a more practical cost level than higher-silicon grades such as FeSi72 or FeSi75.

You can use FeSi70 during ladle refining, converter silicon trimming and secondary refining adjustment. In these stages, the purpose is not only to add silicon, but to keep the final Si level more predictable before tapping or continuous casting.

For repeated furnace formulas, FeSi70 helps your production control silicon addition without moving directly to higher-Si grades. If your process needs stable silicon correction, moderate alloying cost and consistent molten steel adjustment, FeSi70 is a practical grade to evaluate.

We have our own factory and maintain stable monthly supply capacity of around 3,000 tons. We can supply FeSi70 in lump or granule form according to your furnace practice, and help you confirm size range, fines condition, impurity limits and batch consistency before shipment.

70% Ferrosilicoic Deoxidizing Additive Manufacturers

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Q: What is FeSi70 ferro silicon used for?
A: You can use FeSi70 for steelmaking deoxidation, stable silicon addition, ladle refining adjustment and molten steel composition control.

Q: Why choose FeSi70 instead of FeSi65?
A: FeSi70 gives stronger silicon input than FeSi65. It is suitable when your process needs more Si correction but does not require FeSi72 or FeSi75.

Q: Is FeSi70 suitable for ladle refining?
A: Yes. You can use FeSi70 for ladle refining component adjustment and secondary refining molten steel tuning.

Q: What size can you supply?
A: We can supply 10–50mm, 10–100mm or customized size ranges according to your furnace practice.

Q: What documents can you provide?
A: We can provide COA, MSDS, packing list, commercial invoice and other export documents.

Q: Can you quote FOB, CIF or CFR?
A: Yes. Send us your grade, size, quantity, packing method and destination port. We will help you check the current quotation.

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