Grade 91 Condenser Repair Tube 16.5" OD
Replacement seamless P91 tube, 419.1 mm OD, for condenser water boxes in fossil fuel plants. Enhanced weldability for field repairs. 7304.59.20.80 due to large OD, alloy composition, and condenser suitability.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If welded alloy steel >406.4mm OD
Welding method primary classifier; large OD welded alloy tubes under 7306.40.
If non-alloy steel equivalent
Material composition dictates; carbon steel versions without alloying elements use 7304.31.
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Import Tips & Compliance
• Include PWHT (post-weld heat treatment) procedure approvals for repair applications
• Avoid 'line pipe' misclassification by providing OEM condenser drawings showing tube specs
• Declare as 'OEM replacement part' to support specific use; bulk shipments risk general classification
Related Products under HTS 7304.59.20.80
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ASTM A335 P91 Large Diameter Boiler Pipe
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