13-3/8 inch 13Cr Stainless Casing
Seamless 13% chromium stainless steel casing pipe, 13.375 inch OD, 10.92 mm wall thickness, corrosion-resistant for sour gas wells. HTS 7304.24.4050 applies to its seamless stainless steel construction for oil/gas drilling within the specified size parameters.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If electric resistance welded (ERW)
ERW stainless casing classifies under welded pipes 7306.40 rather than seamless 7304 series.
If used as tubing rather than casing
Drill tubing (production tubing) has separate subheading from casing within 7304.24.
If imported as unfinished stainless tube
Unworked stainless steel tubes not specifically for drilling fall under Chapter 72 base metals.
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Import Tips & Compliance
• Obtain NACE MR0175 certification for sour service applications common with 13Cr grades
• Label clearly as 'casing for oil/gas drilling' to avoid confusion with tubing (7304.24.6050)
• Customs may require dimensional inspection; ensure OD stays under 16 inches (406.4 mm)
Related Products under HTS 7304.24.40.50
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