Stainless Steel Blind Flange 150# Class from China
A 150# class blind flange of stainless steel used to seal pipe ends in oil and gas pipelines. It prevents flow and allows future access, classified under HTS 7307.21.5000 as other stainless steel flanges. Not a wire product due to its large cross-section.
Duty Rate — China → United States
40.6%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide pressure class markings and ASME B16.5 compliance docs to match exact statistical reporting
• Declare nominal pipe size (NPS) accurately to avoid undervaluation penalties
• Watch for country-of-origin rules; many stainless flanges face additional tariffs from EU or Asian origins