5-1/2 Inch M-65 Coupled Casing
M-65 grade seamless steel casing with integral couplings, 5-1/2 inch OD, 11.2 mm wall, for production tubing in oil wells. Classified under HTS 7304.29.10.10 for threaded/coupled, small thin-wall seamless nonalloy casing in drilling operations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If precision mechanical tubes
High-precision finishing moves to 7306.19 mechanical tubes.
If as drill tubing, not casing
Tubing function vs casing distinguishes within 7304.19.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Submit coupling specifications separately if premium connections used
• Ensure heat number traceability from MTC for quality assurance audits
• File entries under bonded warehouse if immediate use uncertain
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