Ferrocolumbium (Ferro-Niobium) 65% Nb from Japan
Ferrocolumbium alloy with 65% niobium (columbium), essential for micro-alloying high-strength low-alloy steels. HTS 7202.99.8040 designates it as 'Other' ferroalloy consistent with Chapter 72 iron-based additions not elsewhere specified.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Verify niobium content with certified assays; use anti-rust packaging—no allowances for discoloration per Chapter rules; differentiate from pure niobium under Chapter 81 in declarations