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Fluorspar Lumps
High-end and normal fluorspar lumps for steelmaking, non-ferrous smelting, ferroalloys, and other flux applications, with published size bands and impurity options.
High-end90% / 93% / 95% / 97% / 98%
Normal75% / 80% / 85%
Size1-10 mm to >120 mm
Page detailsFluorspar Lumps for Steelmaking and Flux Applications | FluoricaPublished CaF2 ranges, impurity limits, and size bands for fluorspar lumps used in steelmaking, ferroalloys, and non-ferrous metallurgy.
UpdatedJul 14, 2026Canonical: /products/fluorspar-lumps
What this grade is for
High-end and normal fluorspar lumps for steelmaking, non-ferrous smelting, ferroalloys, and other flux applications, with published size bands and impurity options.
The source page treats grade and size distribution as separate controls, so buyers should quote chemistry and particle band together.
- Steelmaking and non-ferrous fluxing where coarse feed is preferred.
- Ferroalloy and metallurgical charging applications.
- Buyers who want a natural or processed lump form with published grade and size bands.
Published specification guidance
Use the table below as a buyer-facing starting point. Final chemistry, moisture, particle size, packaging, and inspection terms should still be confirmed in the sales contract.
Published lump grade ranges| Grade | CaF2 | Additional note |
|---|
| High-end | 90% / 93% / 95% / 97% / 98% | SiO2 <10%, <7%, <5%, <3%, <2%; CaCO3 <1%; S <0.05%; P <0.01%. |
| Normal | 85% / 80% / 75% | SiO2 <13%, <16%, <20%; CaCO3 <3%, <5%, <5%; S <0.1%. |
| Impurity options | Low sulphur / low phosphorus | Ask for the exact limit if the melt or reaction is sensitive. |
How lumps are evaluated for steelmaking and smelting
For steelmaking, non-ferrous smelting, and ferroalloy use, a lump quotation should be evaluated as a combined chemistry-and-handling proposal. CaF2, impurity limits, size range, fines tolerance, and the charging method all need to be considered together.
The steelmaking guide explains the buyer questions that connect flux material to a specific process. It does not replace plant approval: the RFQ should still state the furnace or charging context and the buyer's acceptance criteria.
Why size range belongs in the RFQ
A nominal lump grade does not define how the cargo will behave during loading, storage, or charging. Buyers should specify the accepted size range, the treatment of fines, and whether breakage limits or screening requirements apply.
The same document should state how the sample will represent the lot. Linking size, chemistry, and sampling terms prevents a quotation from being compared against another offer that uses a different physical basis. Buyers preparing an RFQ can use the fluorspar lumps buying guide to structure these size, chemistry, and sampling requirements.
Buyer checklist
Before you issue an RFQ, make the request precise enough for the plant and the logistics team to quote the same thing.
- Confirm whether the buyer wants natural or processed lumps.
- State the target CaF2 band and the maximum impurity levels.
- Explain the furnace or smelting process so the seller can quote the right lump behavior.
- Include size range, inspection terms, and destination port in the RFQ.
