Fe-C Composite Pellets for BOF | High Carbon Recovery

If you spend time on BOF floors (I do, more than I probably should), you can feel the shift: higher scrap ratios, tighter endpoint control, and an almost obsessive push to cut tap-to-tap times. In that mix, [Fe-C Composite Pellets for BOF] have been getting a lot of quiet attention—because they solve small but irritating problems that add up. Less dust, more predictable C pickup, steadier meltdown. It’s not glamorous, but it’s money.

What they are (and why plants care)

Fe-C Composite Pellets for BOF are spherical agglomerates—iron powder plus carbon (typically graphite/anthracite)—formed by composite material technology. In practice, that means tighter Fe/C ratios and faster dissolution than loose carburizer and iron fines. Many operators tell me their post-blow trimming narrows by a few tenths of a point—small on paper, big in yearly cost.

Typical specs (real-world use may vary)

How they’re made (short version)

Materials: atomized iron powder, graphite/anthracite, trace binders (bentonite/organic), anti-dust coating. Method: precision mixing → disc/drum pelletizing → low-temp curing → screening (10–25 mm) → abrasion check (ISO 3271) → CCS test (ISO 4700) → moisture control → palletize. Origin: No.3 Longyang South Road, Longgang Economic Development Zone, Xindu District, Xingtai, Hebei, China.

Where they fit in your BOF

• Charge mix with scrap to stabilize heat balance and reduce slopping.
• Early blow carburant for kinetic decarburization and temperature control.
• Trim carbon near endpoint when you want predictable pickup without dust.

Advantages we keep hearing: steadier endpoint C, fewer fines loss to off-gas, faster meltdown vs. loose blends, and simpler logistics (one SKUs beats two bags and a prayer).

Vendor snapshot (indicative)

Customization and QC

Fe-C Composite Pellets for BOF can be tailored: carbon 10–25%, size 8–30 mm, low-S/low-P blends for stricter lines, and anti-dusting coatings. Typical tests: ISO 3082 sampling, ISO 4700 CCS, ISO 3271 tumble/abrasion, ASTM E1019/ISO 15350 for C/S analytics, XRF chemistry (ISO 9516). COA and third-party inspection on request.

Mini case notes

• 200-t BOF, Southeast Asia: switched 30% of trim carbon to composites; reported 0.2–0.3 min reduction in tap-to-tap and 1.1% less dust carryover (plant data, 3 months).
• 180-t BOF, EU: higher scrap heat (25%→32%) stabilized using 20% composite pellets in charge; endpoint C scatter tightened by ≈0.03%C.

Customer feedback? “Less mess on the scrap conveyor” and “carbon pickup is boring now”—which, to be honest, is exactly what you want.

For sourcing or trials, the factory in Xingtai, Hebei, is straightforward to work with on pilots and data exchange. I guess that’s why repeat orders keep happening.

References

1. ISO 4700: Iron ore pellets — Determination of crushing strength.
2. ISO 3271: Iron ores — Determination of tumble and abrasion indices.
3. ASTM E1019 / ISO 15350: Determination of carbon and sulfur in iron and steel by combustion.
4. worldsteel & AIST, Basic Oxygen Furnace Practice and Process Control (technical notes, 2020–2023).