Grade 347H Seamless Feedwater Heater Tube
Stabilized 347H seamless alloy tube, 120 mm OD, for feedwater heaters resisting intergranular corrosion after welding. ASME-approved for power plant closed feedwater systems. Fits 7304.59.20.55 criteria: alloy steel, circular seamless, heater-suitable, specified diameter.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If threaded or with fittings
Tube fittings or connected assemblies classify under 7307.
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Import Tips & Compliance
• Include grain size verification for H-grade; ensure clean bill of lading free of oil contamination
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