Cleaned EN description for ferro-boron-feb. Specs verified against data.ts (B 17-20%, C ≤0.5%, Si ≤2.0%, Al ≤0.5%, S ≤0.01%, P ≤0.10%, 10-50mm) — exact match, no spec error. No origin leak, no customer name, no fabricated price/cert#/founding-year/customer-count, no banned anti-AI clichés. Only fix applied: the redundant/salesy closing "for a current RFQ quote" (RFQ already = request for quote) was tightened to "Send grade, addition rate and required quantity for an RFQ." Length ~165 words, within 150-200.
Technische Spezifikationen
B
17-20%
C
≤ 0.5%
Si
≤ 2.0%
Al
≤ 0.5%
S
≤ 0.01%
P
≤ 0.10%
Körnung
10-50mm
Anwendungen
Boron steel (hardenability)
Amorphous / soft-magnetic alloys
NdFeB magnet production
Special alloy steel
Häufig gestellte Fragen
Which FeB grade and B content should I specify for boron-treated steel?
Our standard is FeB18 with B at 17-20%, C ≤ 0.5%, Si ≤ 2.0%, Al ≤ 0.5%, S ≤ 0.01% and P ≤ 0.10%. For hardenability of low-carbon boron steel, low C, low S and low Al are what matter, because free N ties up boron as BN and blunts its effect; Al and Ti act as nitride formers that scavenge N and keep boron in solution. When the steel is fully Ti/Al-killed and N is controlled, FeB18 to this spec delivers the soluble boron needed. State your residual N and target soluble-B band and we match the grade.
What is a typical dosage and how do I add FeB to the melt?
Boron is effective at very small additions. In hardenability practice, target soluble B around 0.0008-0.0035 wt% in the finished steel; the FeB charge is back-calculated from your B 17-20% assay, ladle weight and an assumed recovery (often 50-70%, deoxidation-dependent). Add late, after full deoxidation and Ti treatment, so Ti and Al scavenge O and N first and free boron survives. Use 10-50mm lump for ladle or furnace addition. Confirm recovery on your own heats and adjust.
How is FeB packed, and what are the MOQ and lead-time terms?
Standard pack is 10-50mm lump in sealed steel drums or big-bags on pallets, suitable for FCL and bonded-stock pulls. We move full 20 MT FCL and consolidated 5 MT LCL lots, with smaller quantities available from Gebze bonded stock for trial heats. Delivery is typically CIF Marmara or ex-bonded stock. Lead time depends on lot size, grade and incoterm; send tonnage, destination port and required grade and we confirm the schedule against current multi-regional sourcing.
What quality documentation and testing come with the material?
Each lot ships with a COA/MTC stating B, C, Si, Al, S, P and size against the FeB18 spec. Chemistry is determined by ICP-OES or wet analysis; size is confirmed by screening. Third-party inspection (SGS, Bureau Veritas or equivalent) and pre-shipment sampling can be arranged on request, and we hold retained samples for traceability. Specify any tighter element limits, sampling protocol (ISO 5446-type) or witness-test requirement at order and we document accordingly.
When should I use FeB versus another boron source or alloying route?
FeB18 suits steelmaking where you add boron via lump ferroalloy: boron steel hardenability, special alloy steels, and as a B carrier into amorphous/soft-magnetic and NdFeB magnet feedstock. Where you need boron plus a strong deoxidizer/nitride former in one addition, a boron-bearing complex alloy can be considered, but it shifts your Si/Al balance. For ultra-low residual control, a finer or tighter-spec grade may fit better. Tell us the soluble-B target and host chemistry and we advise the right route.
