Alloy Steel Surface Casing for Offshore Oil Rigs from United States
This is a heavy-walled welded alloy steel surface casing with a 24-inch outer diameter, used in offshore oil drilling to seal upper borehole sections against formation fluids. It is classified under tariff item 7305.20.00 as casing of a kind used in drilling for oil or gas, with an external diameter exceeding 406.4 mm and welded construction.
Duty Rate — United States → Canada
Rate breakdown
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- GAC
Steel · Required
Global Affairs Canada: GAC Steel (Carbon Steel) requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Within Range 7304000000–7306999999).
CBSA Single Window matching criteria, unknown
Import Tips
• For offshore use, ensure the casing meets Canadian petroleum industry standards (e.g
• API 5CT) and provide material test certificates to CBSA
• Verify the external diameter exceeds 406.4 mm; otherwise, classification shifts to heading 7306
• Consider using a customs broker familiar with oil and gas equipment to handle any technical classification questions