HSLA Steel Ferroniobium Additive from Japan
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.
Duty Rate — Japan → United States
5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Reference specific steel standards (API 5L, ASTM A572) in import docs to justify classification
• Watch for partial alloying—must be >50% Fe/Nb to remain ferroalloy, not pure metal