Key facts
- HS subheading
- 7306.30
- Duty (MFN)
- Free
- National lines
- 18
- Tariff
- United States
- Chapter
- 73: Articles of iron or steel
Summary
The United States tariff splits HS 7306.30 (other, welded, of circular cross-section, of iron or non-alloy steel) into 18 national lines: 7306.30.10.10 (internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit), 7306.30.10.90 (other), 7306.30.30.00 (tapered steel pipes and tubes principally used as parts of illuminating articles), 7306.30.50.10 (suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawn) and 14 others. Every United States line under 7306.30 is free of general (MFN) duty.
United States lines under 7306.30
The United States tariff splits HS 7306.30 (other, welded, of circular cross-section, of iron or non-alloy steel) into 18 national lines: 7306.30.10.10 (internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit), 7306.30.10.90 (other), 7306.30.30.00 (tapered steel pipes and tubes principally used as parts of illuminating articles), 7306.30.50.10 (suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawn) and 14 others.
Every United States line under 7306.30 is free of general (MFN) duty.
- 7306.30.10.10Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduitDuty: Free
- 7306.30.10.90OtherDuty: Free
- 7306.30.30.00Tapered steel pipes and tubes principally used as parts of illuminating articlesDuty: Free
- 7306.30.50.10Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawnDuty: Free
- 7306.30.50.15Other, cold-drawnDuty: Free
- 7306.30.50.20Other, cold-rolled (cold-reduced) with a wall thickness not exceeding 2.54 mmDuty: Free
- 7306.30.50.26With an outside diameter not exceeding 50.8 mmDuty: Free
- 7306.30.50.27With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mmDuty: Free
- 7306.30.50.28Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduitDuty: Free
- 7306.30.50.31With an outside diameter not exceeding 50.8 mmDuty: Free
- 7306.30.50.33With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mmDuty: Free
- 7306.30.50.35Tube and pipe hollows for redrawingDuty: Free
- 7306.30.50.41With an outside diameter not exceeding 50.8 mmDuty: Free
- 7306.30.50.43With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mmDuty: Free
- 7306.30.50.56With an outside diameter not exceeding 50.8 mmDuty: Free
- 7306.30.50.57With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mmDuty: Free
- 7306.30.50.85GalvanizedDuty: Free
- 7306.30.50.90OtherDuty: Free
In other countries
No other national tariff on border.bot has live lines under 7306.30 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 7306.30?
The United States tariff splits HS 7306.30 (other, welded, of circular cross-section, of iron or non-alloy steel) into 18 national lines: 7306.30.10.10 (internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit), 7306.30.10.90 (other), 7306.30.30.00 (tapered steel pipes and tubes principally used as parts of illuminating articles), 7306.30.50.10 (suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawn) and 14 others.
What is the duty on HS 7306.30 in the United States?
Every United States line under 7306.30 is free of general (MFN) duty.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: