USITC 2026 HTS Revision 19
26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.
Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.
Original source definitions and general notes
Official schedule and source documentation7304.59.10.00
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other:
Suitable for use in the manufacture of ball or roller bearings
Source units: kg
- Column 1 — General
- Free
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- 34%
Official source for this code7304.59.20
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other:
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General
- Free
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- 35%
Official source for this code7304.59.20.30
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
Of heat-resisting steel
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.40
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter less than 38.1 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.45
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.55
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter exceeding 114.3 mm but less than 190.5 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.60
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.70
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.20.80
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters › Other:
Having an outside diameter exceeding 406.4 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.20 — read its printed duties and notes
Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.60.00
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other:
Of heat-resisting steel
Source units: kg
- Column 1 — General
- Free
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- 36%
Official source for this code7304.59.80
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other:
Other
- Column 1 — General
- Free
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- 35%
Official source for this code7304.59.80.10
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other
Having an outside diameter less than 38.1 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.15
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm:
Having a wall thickness less than 6.4 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.20
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm:
Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.25
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm:
Having a wall thickness exceeding 12.7 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.30
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm:
Having a wall thickness less than 12.7 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.35
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm:
Having a wall thickness of 12.7 mm or more but less than 19 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.40
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm:
Having a wall thickness of 19 mm or more
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.45
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm:
Having a wall thickness less than 12.7 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.50
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm:
Having a wall thickness of 12.7 mm or more but less than 19 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.55
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm:
Having a wall thickness of 19 mm or more
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.60
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm:
Having a wall thickness less than 12.7 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.65
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm:
Having a wall thickness of 12.7 mm or more but less than 19 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.70
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm:
Having a wall thickness of 19 mm or more
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code7304.59.80.80
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Other: › Other: › Other
Having an outside diameter exceeding 406.4 mm
Source units: kg
- Column 1 — General
- No amount printed on this row; not a confirmed zero.
- Column 1 — Special (eligibility required)
- No amount printed on this row; not a confirmed zero.
- Column 2
- No amount printed on this row; not a confirmed zero.
Parent tariff line 7304.59.80 — read its printed duties and notes
Other
- Column 1 — General: Free
- Column 1 — Special (eligibility required): No amount printed.
- Column 2: 35%
Open parent line in the official schedule Official source for this code