HS code · 6-digit subheading
HS Code 7306.21 – Steel, stainless; casing and tubing of a kind used in drilling for oil and gas, n.e.c. in chapter 73, welded, (not seamless)
HS code 7306.21 is the 6-digit subheading for steel, stainless, casing and tubing of a kind used in drilling for oil and gas, n.e.c. in chapter 73, welded, (not seamless). It is used for stainless steel production tubing, corrosion-resistant casing strings, downhole injection tubing, geothermal well casing and sour service tubing.
What HS 7306.21 covers
This code covers welded stainless steel casing and tubing specifically used in oil and gas drilling operations, excluding seamless varieties and those classified elsewhere in Chapter 73. These specialized pipes are vital for constructing and completing oil and gas wells, particularly in corrosive downhole environments or where high-strength, corrosion-resistant materials are required to ensure well integrity and longevity. Key importers and exporters are countries with active oil and gas exploration and production sectors, including the USA, Canada, Norway, Saudi Arabia, and Brazil. The trade is driven by ongoing drilling activities, well workovers, and the development of challenging reservoirs. Buyers include exploration and production (E&P) companies, drilling contractors, and oilfield service providers. The "stainless steel" and "welded" attributes are critical, offering a cost-effective alternative to seamless stainless options while providing superior corrosion resistance compared to carbon steel in demanding well conditions.
- Covers
- Stainless steel production tubing
- Corrosion-resistant casing strings
- Downhole injection tubing
- Geothermal well casing
- Sour service tubing
- Completion string components
- Well liner pipes
- Examples
- Tenaris stainless OCTG (welded)
- Vallourec stainless casing (welded)
- Sumitomo Metal stainless tubing
- JFE Steel stainless well pipes
- Sandvik corrosion-resistant tubing
Codes often confused with 7306.21
Common mistake. This code is often confused with 730629 (non-stainless casing/tubing) or 730421 (seamless stainless casing/tubing) due to similar applications, but the key differentiators are the material (stainless steel), manufacturing method (welded), and specific use (oil/gas drilling casing/tubing).
Top exporters and importers of HS code 730621, 2025
In 2025, the largest exporter of HS code 730621 in UN Comtrade data was Malaysia, with 16% of world exports; the largest importer in UN Comtrade data was India, with 21% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Malaysia $3.7M 16% of world exports
- 2 China $3.6M 15% of world exports
- 3 France $3.0M 12% of world exports
World total: $24M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $9.4M 21% of world imports
- 2 Philippines $4.7M 10% of world imports
- 3 Spain $4.4M 9.7% of world imports
World total: $46M 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 7306.21
Brazil does not split HS 7306.21: its NCM code is 7306.21.00.
All Brazil NCM codes in heading 73.06 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
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 HS 7306.21
What is HS code 730621?
HS code 730621 is a 6-digit subheading in the Harmonized System that covers: Steel, stainless; casing and tubing of a kind used in drilling for oil and gas, n.e.c. in chapter 73, welded, (not seamless). This code covers welded stainless steel casing and tubing specifically used in oil and gas drilling operations, excluding seamless varieties and those classified elsewhere in Chapter 73. These specialized pipes are vital for constructing and completing oil and gas wells, particularly in corrosive downhole environments or where high-strength, corrosion-resistant materials are required to ensure well integrity and longevity. Key importers and exporters are countries with active oil and gas exploration and production sectors, including the USA, Canada, Norway, Saudi Arabia, and Brazil. The trade is driven by ongoing drilling activities, well workovers, and the development of challenging reservoirs. Buyers include exploration and production (E&P) companies, drilling contractors, and oilfield service providers. The "stainless steel" and "welded" attributes are critical, offering a cost-effective alternative to seamless stainless options while providing superior corrosion resistance compared to carbon steel in demanding well conditions.
What products fall under HS code 730621?
Stainless steel production tubing, corrosion-resistant casing strings, downhole injection tubing, geothermal well casing, sour service tubing, completion string components, well liner pipes
What are common misclassifications for HS code 730621?
This code is often confused with 730629 (non-stainless casing/tubing) or 730421 (seamless stainless casing/tubing) due to similar applications, but the key differentiators are the material (stainless steel), manufacturing method (welded), and specific use (oil/gas drilling casing/tubing).
Which countries are the top exporters of goods under HS code 730621?
In 2025, the top exporters of HS code 730621 in UN Comtrade data were Malaysia ($3.7M, 16% of world exports), China ($3.6M) and France ($3.0M). World exports came to about $24M, 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 goods under HS code 730621?
In 2025, the top importers of HS code 730621 in UN Comtrade data were India ($9.4M, 21% of world imports), the Philippines ($4.7M) and Spain ($4.4M). World imports came to about $46M, 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.
How is HS code 730621 structured?
HS code 730621 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (06) identify the heading, and digits 5-6 (21) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 730621?
In Brazil, HS code 730621 is NCM 7306.21.00. The last two digits are 00 because Brazil does not split this HS code further.