Chrome-Moly Steel Blind Flange 600# from China
Blind flange constructed from ASTM A182 F11 chrome-moly alloy steel, 6-inch ID (152 mm), class 600, used to seal pipe ends in high-temperature refineries. HTS 7307.91.50.30 applies as it's an alloy steel flange (non-stainless) under 360 mm ID. Provides full sealing without internal bore.
Duty Rate — China → United States
40.5%
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
• Require heat treatment records for alloy verification; declare pressure class if relevant for valuation
• Pitfall: confusing with spectacle blinds which may be 7307.99 if not flanged