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Table K-1 to Subpart K of Part 98—Electric Arc Furnace (EAF) CH<sub>4</sub> Emission Factors

Electric Arc Furnace (EAF) CH<sub>4</sub> Emission Factors

  1. CFR
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  3. Title 40
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  5. Chapter I
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  7. Part 98
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  9. Subpart K
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  11. Appendix Table K-1 to Subpart K of Part 98
CorpusDaily eCFR
Displayed edition2026-04-15
Last updated2026-04-15

Table K-1 to Subpart K of Part 98—Electric Arc Furnace (EAF) CH4 Emission Factors

Alloy product produced in EAFCH4 emission factor

(kg CH4 per metric ton product)
EAF Operation
Batch-chargingSprinkle-charging aSprinkle-charging and

>750 °C b
Silicon metal1.51.20.7
Ferrosilicon 90%1.41.10.6
Ferrosilicon 75%1.31.00.5
Ferrosilicon 65%1.31.00.5
a Sprinkle-charging is charging intermittently every minute.
b Temperature measured in off-gas channel downstream of the furnace hood.