20 inch 94 ppf Super Duplex Stainless Oil Well Tubing
Super duplex stainless steel seamless tubing (20 inch OD) for intermediate casing in harsh subsea oil environments. API 5CT compliant for high collapse resistance in drilling operations. Large OD >406.4 mm places it in HTS 7304.24.60.75 for stainless oilfield tubing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cold-drawn and not heat-treated
Specific manufacturing processes for alloy steel tubing use 7304.41 suffixes.
If designed for gas compressor use in drilling
Specialized gas handling tubes classify under Chapter 84 machinery parts.
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
• Super duplex requires PREN >40 certification; include in MTRs for Customs verification
• Markings like API monogram, grade, OD must be clearly visible per API Spec 5CT
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