4 Inch TP347H Stainless Steel Casing
Seamless TP347H high-temperature stainless steel casing with 4 inch (101.6 mm) OD and 10.5 mm wall for thermal recovery oil wells. Classified under HTS 7304.24.40.10 as stainless steel drilling casing with appropriate dimensions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with attached mechanical couplings
Permanently coupled ends classify as pipe fittings in 7307.23.
If having wall thickness over 12.7 mm
Thicker walls move to general stainless casing provisions.
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
• Specify UNS number (e.g
• S34709) in commercial invoice for precise stainless grade identification
• Ensure no plastic coating, as coated pipes may require 7306.90 classification
• Comply with Buy America requirements if for US projects by sourcing certified origins
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