HTS Chapter 73 covers articles of iron or steel – tubes and pipes, structures, fasteners, household articles, springs, chains. Section 232 steel covers most Chapter 73 goods plus the Section 232 derivatives expansion adds adjacent products.
This guide covers HTS Chapter 73 Iron and Steel Articles. HTS classification is the legal foundation of import duty calculation.
For SMB importers, the practical implementation depends on volume, sector, and operational structure.
Chapter 73 structure
Headings 7301-7325 (specific articles by type). Pipes and tubes (7303-7306), fasteners (7318), structures (7308), springs (7320).
Section 232 steel coverage
Most Chapter 73 articles fall within Section 232 steel scope. 25% rate applies (with country-specific exemptions and quotas).
Derivatives expansion
The 2025 derivatives expansion brought more Chapter 73 articles into scope. Component-level analysis identifies actual coverage.
USMCA qualification
USMCA-qualifying steel articles exempt from Section 122. Section 232 may still apply.
Frequently asked questions
When does this apply?
For SMB importers with active duty exposure or those evaluating mitigation options.
What documentation is required?
Standard CBP forms plus topic-specific supporting records. We review documentation as part of typical engagements.
What is the timeline?
Simple cases 2-4 weeks; complex setups 8-16 weeks.
What does this cost?
Project work: $5,000-$25,000 depending on complexity. Ongoing retainer for active operations.
How do I begin?
Book a 15-minute scoping call. We confirm fit and scope before any engagement.
Get started
Get a paid classification opinion or binding ruling support. Fixed-fee per HTS code.