Alloy TP347H Boiler Tube OD 32mm from Japan
Seamless TP347H stabilized stainless alloy tube, 32 mm OD, for thick-walled boiler applications. Niobium stabilization prevents carbide precipitation in superheater service. 7304.59.20.40 for diameter and boiler suitability despite stainless alloy.
Duty Rate — Japan → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Stabilization element analysis required to distinguish from standard austenitics
• Bundle with stainless steel banding only; avoid carbon steel contamination