Product classification
HS code for Stainless steel drill pipe: 7304.22
Steel, stainless, seamless, drill pipe, of a kind used in drilling for oil or gas.
Classification of stainless steel drill pipe under HS 7304.22
Stainless steel drill pipe is classified under HS code 7304.22. This classification is found in Chapter 73 (Articles of iron or steel) and heading 7304, which covers tubes, pipes, and hollow profiles, seamless, of iron or steel. The specific subheading 7304.22 is reserved for drill pipe of a kind used in drilling for oil or gas, made of stainless steel. The 'seamless' requirement is critical; these pipes are manufactured without a welded seam, typically through a process of piercing a solid billet to ensure maximum strength and pressure resistance. In the context of oil and gas extraction, stainless steel is often selected for its resistance to hydrogen sulfide and carbon dioxide, which are common in 'sour' drilling environments. The classification follows GRI 1, as the product is explicitly named in the subheading. The pipe must meet specific metallurgical standards for stainless steel (minimum 10.5% chromium) to qualify for this code rather than the general steel drill pipe codes.
- Covers
- Seamless stainless steel drill pipes
- Heavy-weight drill pipes (stainless)
- Stainless steel drill collars (if seamless)
- High-strength stainless steel tubing for oil exploration
- Also under 7304.22
- Tenaris stainless drill pipe
- Vallourec stainless drill pipe
- Sumitomo Metal Industries stainless drill pipe
- JFE Steel stainless drill pipe
- Sandvik stainless drilling tubes
Codes often confused with 7304.22
Common mistake. The most frequent misclassification is HS code 7304.23, which covers 'other' seamless drill pipes not made of stainless steel (such as carbon steel or other alloy steels). Another common error is 7305.20, which applies to drill pipes that are welded and have an external diameter exceeding 406.4 mm. Additionally, some importers mistakenly use 8431.43, which is for parts of boring or sinking machinery; however, according to Note 1(g) to Section XVI, tubes and pipes are excluded from Chapter 84 and must remain in Chapter 73.
Top exporters and importers of HS 730422 (the code used for stainless steel drill pipe), 2025
In 2025, the largest exporter of HS 730422 (the code used for stainless steel drill pipe) in UN Comtrade data was Norway, with 25% of world exports; the largest importer in UN Comtrade data was Türkiye, with 21% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 730422, not only stainless steel drill pipe.
Top exporters 2025 · share of world exports
- 1 Norway $17M 25% of world exports
- 2 United States $14M 21% of world exports
- 3 China $5.8M 8.4% of world exports
World total: $69M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Türkiye $22M 21% of world imports
- 2 United Kingdom $18M 17% of world imports
- 3 Myanmar $9.4M 8.9% of world imports
World total: $105M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for stainless steel drill pipe
Brazil classifies stainless steel drill pipe under NCM 7304.22.00: HS 7304.22 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about stainless steel drill pipe
What is the HS code for Stainless steel drill pipe?
The HS code for Stainless steel drill pipe is 730422 (Steel, stainless; seamless, drill pipe, of a kind used in drilling for oil or gas). The specific HS code for seamless stainless steel drill pipe used in oil or gas drilling is 7304.22.
How do I classify Stainless steel drill pipe for customs?
Stainless steel drill pipe is classified under HS code 730422 — Steel, stainless; seamless, drill pipe, of a kind used in drilling for oil or gas. This is a 6-digit subheading level code.
What if the drill pipe is welded instead of seamless?
If the stainless steel drill pipe is welded, it would be classified under heading 7305 (if large diameter) or 7306 (if smaller diameter), not 7304.22.
Which countries are the top exporters of stainless steel drill pipe (HS 730422)?
In 2025, the top exporters of HS 730422 (the code used for stainless steel drill pipe) in UN Comtrade data were Norway ($17M, 25% of world exports), the United States ($14M) and China ($5.8M). World exports came to about $69M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of stainless steel drill pipe (HS 730422)?
In 2025, the top importers of HS 730422 (the code used for stainless steel drill pipe) in UN Comtrade data were Türkiye ($22M, 21% of world imports), the United Kingdom ($18M) and Myanmar ($9.4M). World imports came to about $105M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Stainless steel drill pipe the same in all countries?
The base HS code 730422 for Stainless steel drill pipe is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for stainless steel drill pipe in Brazil?
In Brazil, stainless steel drill pipe (HS 730422) is classified under NCM 7304.22.00.