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This directory combines historical reference rows with separately labelled national sources. Read the source title, observation date, printed units and conditions on each entry. National source observations do not establish all measures applicable to a shipment.

United States Customs Tariff for HS Code 730424

Steel, stainless; seamless, casing and tubing, of a kind used in drilling for oil or gas

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.

Official schedule and source documentation

Official entries matching 730424

7304.24.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing:

Threaded or coupled

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
28%
Official source for this code

7304.24.30.10

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled › Having an outside diameter less than 215.9 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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.30.20

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled › Having an outside diameter less than 215.9 mm:

Having a wall thickness of 12.7 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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.30.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled › Having an outside diameter of 215.9 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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.30.40

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm:

Having a wall thickness of 12.7 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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.30.45

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled

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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.30.80

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Threaded or coupled

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 7304.24.30 — read its printed duties and notes

Threaded or coupled

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 28%
Open parent line in the official schedule
Official source for this code

7304.24.40

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing:

Other

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
8.5%
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.10

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Other › Having an outside diameter less than 215.9 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.20

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Other › Having an outside diameter less than 215.9 mm:

Having a wall thickness of 12.7 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Other › Having an outside diameter of 215.9 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.40

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › Other › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm:

Having a wall thickness of 12.7 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.50

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › 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

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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.40.80

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Casing: › 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 7304.24.40 — read its printed duties and notes

Other

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 8.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7304.24.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel:

Tubing

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 code

7304.24.60.15

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Tubing › Having an outside diameter not exceeding 114.3 mm:

Having a wall thickness not exceeding 9.5 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 7304.24.60 — read its printed duties and notes

Tubing

  • 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

7304.24.60.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Tubing › Having an outside diameter not exceeding 114.3 mm:

Having a wall thickness exceeding 9.5 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 7304.24.60 — read its printed duties and notes

Tubing

  • 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

7304.24.60.45

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Tubing

Having an outside diameter exceeding 114.3 mm but less than 215.9 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 7304.24.60 — read its printed duties and notes

Tubing

  • 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

7304.24.60.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Tubing

Having an outside diameter of 215.9 mm or more 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 7304.24.60 — read its printed duties and notes

Tubing

  • 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

7304.24.60.75

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: › Other, of stainless steel: › Tubing

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 7304.24.60 — read its printed duties and notes

Tubing

  • 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
WITS 2023 historical MFN average

Reported average: 0%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 3 of 3. Excluded from the average: 0.

Reported ad-valorem range: 0%–0%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 730424: 0.00% (2023 MFN average)

The source reports an indicative HS6 MFN average of 0.00% (2023 MFN average) for Steel, stainless; seamless, casing and tubing, of a kind used in drilling for oil or gas.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

Browse chapter 73Search parent HS 730424Request import report

Customs tariff summary

Country
United States
HS / tariff code
730424
Description
Steel, stainless; seamless, casing and tubing, of a kind used in drilling for oil or gas
Chapter
73 —
Heading
7304
Subheading
730424
Indicative MFN HS6 average
0.00% (2023 MFN average)
VAT / tax
Check local VAT and excise rules for the import destination.
Unit / basis
Not listed in this tariff line
Source / vintage
WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

0.00% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code
730424
Chapter
73 —
Heading
7304
Subheading
730424

Compare HS code 730424 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 730424United Arab EmiratesSearch parent HS 730424OmanSearch parent HS 730424QatarSearch parent HS 730424KuwaitSearch parent HS 730424BahrainSearch parent HS 730424

Related HS Codes (Heading 7304)

HS CodeDescriptionDuty
730411Iron or steel (excluding cast iron); seamless, line pipe of a kind used for oil or gas pipelines, of stainless steel0.00% (2023 MFN average)WITS 2023 historical MFN average
730419Iron or steel (excluding cast iron or stainless steel); seamless, line pipe of a kind used for oil or gas pipelines0.00% (2023 MFN average)WITS 2023 historical MFN average
730422Steel, stainless; seamless, drill pipe, of a kind used in drilling for oil or gas0.00% (2023 MFN average)WITS 2023 historical MFN average
730423Iron or steel (excluding cast iron or stainless steel); seamless, drill pipe, of a kind used in drilling for oil or gas0.00% (2023 MFN average)WITS 2023 historical MFN average
730429Iron or steel (excluding cast iron or stainless steel); seamless, casing and tubing, of a kind used in drilling for oil or gas0.00% (2023 MFN average)WITS 2023 historical MFN average
730431Iron or non-alloy steel (excluding cast iron); seamless, cold-drawn or cold-rolled, tubes, pipes and hollow profiles of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730439Iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730441Steel, stainless; cold-drawn or cold-rolled (cold-reduced), tubes and pipes of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730449Steel, stainless; (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730451Steel, alloy (not stainless steel); seamless, cold-drawn or cold-rolled (cold-reduced), tubes, pipes and hollow profiles of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730459Steel, alloy (not stainless steel); (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section0.00% (2023 MFN average)WITS 2023 historical MFN average
730490Iron or steel (excluding cast iron); seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 73040.00% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.