Ferroniobium Lumps Ultra-Low P/S from United States
Ferroniobium in lump form with a niobium content of 60-70% by weight, characterized by ultra-low phosphorus and sulfur levels (max 0.01% each) and a silicon content of 0.25%. It is used as an additive in electric arc furnace steelmaking to impart strength and toughness to high-strength low-alloy steels.
Duty Rate — United States → Canada
Import Tips
• Ensure the product's chemical composition (niobium, phosphorus, sulfur, silicon) is documented in the commercial invoice to support classification under 7202.93.00
• Verify that the lumps meet the physical form criteria for ferro-alloys (pigs, blocks, lumps, or similar primary forms) to avoid reclassification
• Consult the CBSA's tariff classification advice service for binding rulings on borderline compositions