Martensitic Stainless Alloy Tube 15-inch OD from China
Seamless 15-inch (381 mm) OD martensitic alloy steel tube (13Cr-4Ni), 8 mm wall, for sour gas service tubing. Though high Cr, classified as 'other alloy' under HTS 7304.59.80.60 for seamless circular profile, OD range, thin wall. Stress corrosion cracking resistance in H2S environments.
Duty Rate — China → United States
35%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• Differentiate from austenitic stainless via microstructure reports
• Confirm no austenitic stabilizers (Ni<2.5%) for correct alloy heading
• Measure wall internally/externally for thinnest point compliance