Nitriertes Ferrochrom
FeCrNNEU

Nitriertes Ferrochrom

Nitrided Ferro Chrome (FeCrN) is a solid-state nitrided alloy that delivers chromium and nitrogen to the melt in a single addition, dissolving without the recovery losses and porosity risk of gas-phase nitrogen injection. Nitrogen acts as a strong austenite stabilizer and interstitial strengthener: it raises yield strength, improves pitting and crevice corrosion resistance, and lets producers cut nickel without sacrificing the austenite/ferrite balance. This makes FeCrN the standard route to duplex and super-duplex stainless steels, nitrogen-alloyed and high-nitrogen steels (HNS), and certain tool steels. Typical addition is dosed to hit the target N specification, commonly 0.1-0.5 wt% nitrogen in the finished steel, adjusted for furnace nitrogen recovery. The grade carries Cr 60-65% and N 5-8%, with controlled C ≤0.06%, Si ≤1.5%, P ≤0.03% and S ≤0.04% to protect weldability and ductility; sized 10-50mm for predictable dissolution and clean charging. Supplied with COA and MTC against each lot, multi-regional sourcing, CIF Marmara or Gebze bonded stock, 20 MT FCL. Send your grade and N target for an RFQ.

Technische Spezifikationen

Cr60-65%
N5-8%
C≤ 0.06%
Si≤ 1.5%
P≤ 0.03%
S≤ 0.04%
Körnung10-50mm

Anwendungen

Industrielle Anwendungen
Duplex stainless steel
Nitrogen-alloyed steel
High-nitrogen steel (HNS)
Tool steel

Häufig gestellte Fragen

How do I choose the right FeCrN grade for nitrogen-strengthened stainless steel?
Match the heat's chromium and nitrogen targets. This grade runs Cr 60-65% with N 5-8%, so Cr:N ratio sits near 8-12:1. For duplex grades (e.g. 2205-type) you usually want the higher N end to hit 0.14-0.20% N in the melt; high-nitrogen steels (HNS) push further. Keep C ≤0.06% to protect intergranular corrosion resistance. Confirm Si ≤1.5%, P ≤0.03% and S ≤0.04% against your residual limits before fixing the grade.
What dosage and addition practice give good nitrogen recovery?
Dosage follows your nitrogen and chromium deficit, not a fixed rate. Most stainless melters add roughly 0.5-2.0 wt% FeCrN of the charge to lift N by tenths of a percent, since the lump assays 5-8% N. Nitrogen recovery is heat-dependent; add late, after deoxidation and under a tight slag, to limit denitrogenation. The 10-50mm lump dissolves predictably in liquid steel. Run a trial heat with COA values to calibrate yield for your furnace and tap practice.
What are the packaging options, lead time and minimum order quantity?
Standard packing is the 10-50mm lump in 1 MT big-bags on pallets, or steel drums for smaller parcels; we can label per your routing. Typical movement is 20 MT FCL or consolidated 5 MT LCL, with bonded stock available at Gebze for faster Marmara-region delivery. MOQ and lead time depend on grade availability and whether you draw from bonded stock or a fresh allocation, so request a current quote with your tonnage and delivery terms (CIF, CFR or ex-bonded).
What quality documentation and testing come with each lot?
Each lot ships with a COA stating Cr, N, C, Si, P, S and size against this specification, plus an MTC on request. Chemistry is verified by combustion analysis for C/S, inert-gas fusion for N, and XRF or wet methods for Cr. Sizing is screen-checked to the 10-50mm window. Third-party inspection (SGS/Bureau Veritas type) and pre-shipment sampling can be arranged so your incoming-QC matches the certified values before melt.
When should I use FeCrN instead of charging FeCr plus a separate nitrogen source?
Use FeCrN when you need controlled, alloyed-in nitrogen with chromium in one addition — it avoids the poor, variable recovery of gas nitrogen or nitrided manganese in stainless melts and keeps C low. Standard HC/LC ferrochrome adds Cr only; nitrided ferro-manganese suits Mn-N steels, not Cr targets. For duplex, HNS and nitrogen-alloyed tool steels, FeCrN gives tighter N control. If your grade tolerates no extra Cr, a manganese-based nitriding alloy is the alternative.

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