75 Grade Ferro Silicon For Steelmaking
Al 1.5% max standard grade, low-Al 0.5% max available for stricter steel grades
Common sizes: 10–50mm, 10–100mm or customized crushed material
1MT jumbo bag export packing, suitable for steel mills and foundries
Ask for FeSi75 price, CoA, MOQ, stock status and 7–10 day loading schedule
75 Grade Ferro Silicon for Steelmaking
75 grade ferro silicon for steelmaking is a silicon-iron alloy used to remove oxygen from molten steel and adjust final silicon content. Its silicon content is usually controlled at Si 72–80%.
In steel plants, FeSi75 is mainly used during tapping, ladle refining or final alloy adjustment. Compared with lower silicon grades, FeSi75 gives stronger silicon input and a faster deoxidation response.
For buyers, the main points to check are simple: Si content, Al level, C, P, S, particle size, packing, MOQ and delivery time. These details decide whether the material fits the furnace process, not just whether the price looks low.
FeSi75 Composition Reference
| Item | Standard FeSi75 | Low-Al FeSi75 |
|---|---|---|
| Si | 72–80% | 72–80% |
| Al | 1.5% max | 0.5% max |
| C | 0.1% max | 0.1% max |
| P | 0.04% max | 0.04% max |
| S | 0.02% max | 0.02% max |
| Size | 10–50mm / 10–100mm | 10–50mm / customized |
| Form | Natural lumps / crushed standard | Crushed standard |
| Packing | 1MT jumbo bag | 1MT jumbo bag |
| MOQ | Usually 20–25MT | Usually 20–25MT |
| Loading Time | Usually 7–10 days after payment or LC | Based on stock or production schedule |
Get Latest FOB Price & Full Specification Sheet
Contact us now for a detailed datasheet and bulk quotation.
Why 75 Grade Ferro Silicon Is Used in Steelmaking
The main role of ferrosilicon in steelmaking is deoxidation. Oxygen in molten steel needs to be reduced before casting. If oxygen remains high, alloy recovery becomes unstable and final composition control becomes harder.
FeSi75 works because silicon reacts strongly with oxygen. After addition, it helps reduce dissolved oxygen and brings silicon into the required range.
A lower silicon grade can also work in some cases, but the operator may need more addition to reach the same silicon target. In ladle treatment, this may mean more waiting time, more sampling and another correction before casting.
FeSi75 is selected when the plant wants the deoxidation step to be faster and easier to control.
Send us your detailed requirement, and we will arrange sample delivery for your evaluation.
About ZhenAn 75 Grade Ferro Silicon for Steelmaking Supply
ZhenAn supplies FeSi75, FeSi72 and FeSi65 for steel mills, foundries and alloy users. We are based in Anyang, China, close to major ferroalloy production areas, with export routes to Qingdao, Tianjin and Shanghai ports.
What we check before shipment:
- Composition - Si, Al, C, P and S checked according to order requirement.
- Size control - 10–50mm, 10–100mm or customized crushed material.
- Grade matching - Standard FeSi75 or low-Al FeSi75 based on steel grade requirement.
- Packing - 1MT jumbo bag, with customized marks or liners if required.
- Documents - CoA, packing list, commercial invoice and loading photos.
- Inspection support - Third-party inspection can be arranged before shipment if needed.
For regular buyers, ZhenAn can help confirm stock, MOQ, loading time and FOB/CFR/CIF quotation based on real shipment conditions.
FAQ
Q:What is 75 grade ferro silicon used for?
A:75 grade ferro silicon is used for steelmaking deoxidation, silicon adjustment, casting and alloy production. In steel mills, it helps reduce oxygen in molten steel and adjust final silicon content.
Q:What is the normal specification of FeSi75?
A:A common FeSi75 specification is Si 72–80%, Al 1.5% max, C 0.1% max, P 0.04% max and S 0.02% max. Low-Al FeSi75 with Al 0.5% max can also be supplied.
Q:Why is FeSi75 used as a ferro silicon deoxidizer?
A:FeSi75 contains high silicon content. Silicon reacts with oxygen in molten steel, helping reduce dissolved oxygen and improve alloy recovery before casting.
Q:What size is recommended for steelmaking?
A:For most steelmaking use, 10–50mm is recommended. It is easier to charge and absorb than fine powder, and it dissolves faster than oversized lumps.
Q:How can I get the latest FeSi75 price?
A:Send your required Si content, Al limit, particle size, quantity, packing method, destination port and trade term. ZhenAn can confirm current stock, CoA, MOQ and FOB/CFR/CIF price.
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