Ferrocolumbium (Ferro-Niobium) 65% Nb from China
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 — China → United States
17.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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