Chrome-Moly Steel Blind Flange 600# from Mexico
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 — Mexico → United States
15.5%
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
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