321 Stabilized Stainless Superheater Tube from Japan
Titanium-stabilized 321 stainless welded tubes designed for superheater service in fossil fuel boilers, with wall thickness exceeding 1.65 mm. Prevents sensitization during high-temperature exposure. HTS 7306.40.50.15 designation for superheater applications.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include stabilization heat treatment certificates from accredited labs
• Document maximum operating temperature and pressure ratings
• Ensure declaration matches exact statistical dimensions for accurate duty assessment