Premium Grade Ferroniobium FeNb65
FeNb65 ferroniobium grade with niobium 65±1.5%, P max 0.018%, S max 0.015%, Si max 0.35%, supplied as 10-60mm lumps. Precisely fits HTS 7202.93.4040 low-impurity ferroniobium specification per chapter definitions. Key additive for weldable structural steels.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ferroniobium with higher phosphorus/sulfur levels
Exceeds the <0.02% P or S limit, classified under other ferroniobium impurity specifications.
If still in niobium ore concentrate form
Unprocessed niobium ores remain in Chapter 26; ferroalloy production completes Chapter 72 classification.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Use internationally recognized standards (e.g
• ASTM E1019) for analysis methods in documentation
• Segregate high-purity from standard grades in same container to prevent cross-contamination claims
• Pre-notify CBP for large-volume shipments; ferroniobium often subject to additional steel import monitoring
Related Products under HTS 7202.93.40.00
High-Purity Ferroniobium 60% Niobium
Ferroniobium alloy containing approximately 60% niobium by weight, with less than 0.02% phosphorus, less than 0.02% sulfur, and less than 0.4% silicon, used primarily in high-strength low-alloy (HSLA) steel production. This product falls under HTS 7202.93.4040 due to its specific low impurity levels in phosphorus, sulfur, and silicon as defined in the chapter notes for ferroniobium classification. It is supplied in lump form for steelmaking furnaces.
Low-Impurity Ferroniobium 65% Nb
Premium ferroniobium with 65% niobium content, strictly controlled to under 0.015% phosphorus, 0.01% sulfur, and 0.3% silicon for specialty steel applications. Classified under HTS 7202.93.4040 for meeting the exact low phosphorus/sulfur/silicon thresholds for ferroniobium. Essential for pipeline and structural steels requiring superior toughness.
Ferroniobium Lumps Ultra-Low P/S
Lump-form ferroniobium with maximum 0.01% phosphorus and sulfur, 0.25% silicon, containing 60-70% niobium for electric arc furnace steelmaking. This matches HTS 7202.93.4040 criteria for low-impurity ferroniobium ferroalloys. Used in automotive and aerospace steel alloys.
HSLA Steel Ferroniobium Additive
Specialty ferroniobium optimized for HSLA steels, <0.01% P/S, 0.2% Si max, 68% Nb content in crushed 3-10mm size. Classified HTS 7202.93.4040 due to compliance with low phosphorus/sulfur/silicon limits for ferroniobium. Enhances strength-to-weight ratio in steel.