3-1/2 Inch 25Cr Super 13Cr Casing
Seamless 25Cr super martensitic stainless casing, 3.5 inch OD, 9.5 mm wall thickness for CO2 injection wells. HTS 7304.24.40.10 due to stainless steel, small diameter, thin wall, and oil/gas drilling purpose.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported in square/rectangular hollow sections
Non-circular profiles classify under other hollow sections in 7306.60.
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Import Tips & Compliance
• Include PMI (positive material identification) test certificates for alloy verification
• Declare hydrostatic test pressures to confirm API-grade compliance
• Avoid bulk packaging misclassification by specifying individual joint lengths
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