Steel Blind Flange
A solid steel disc used to seal the end of a pipe system, preventing flow and allowing for future expansion. It is categorized under HTS 7307.91.50 as an 'other' flange of iron or steel, essential for pressure testing and maintenance.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.5% | +75.0% | 80.5% |
| 🇲🇽Mexico | 5.5% | +50.0% | 55.5% |
| 🇨🇦Canada | 5.5% | +50.0% | 55.5% |
| 🇩🇪Germany | 5.5% | +50.0% | 55.5% |
| 🇯🇵Japan | 5.5% | +50.0% | 55.5% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy or stainless steel
Higher alloy content moves classification to stainless or alloy-specific flange subheadings.
If imported in sets with bolts
Flanges sold with bolts and nuts as a complete assembly may be treated as a set under different provisions.
If considered pipe tubing ends
Incomplete or unfinished flange-like ends on tubes may classify under seamless pipe headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include hydrostatic test reports to demonstrate pressure resistance during import valuation
• Classify based on nominal pipe size (NPS) to avoid reclassification in statistical reporting
• Beware of common pitfalls like incorrect flange facing type (raised vs flat) affecting duty assessment
Related Products under HTS 7307.91.50
Forged Steel Weld Neck Flange
A forged carbon steel flange designed with a tapered hub and welded neck for high-pressure piping systems in industrial applications. It falls under HTS 7307.91.50 as a steel flange not specified elsewhere, used to connect pipes securely in refineries and power plants.
Carbon Steel Slip-On Flange
A slip-on carbon steel flange that slides over the pipe end and is welded in place, commonly used in low-pressure applications like water systems. Classified under HTS 7307.91.50 as an 'other' iron or steel flange for general piping connections.
Galvanized Steel Socket Weld Flange
A galvanized socket weld flange for corrosion resistance in outdoor piping, where the pipe is inserted into a socket and fillet welded. Falls under HTS 7307.91.50 as an other steel flange for robust connections in chemical plants.
Plate Steel Flange
A cost-effective flange cut and machined from steel plate stock, suitable for non-critical low-pressure services. It is included under HTS 7307.91.50 as an other iron or steel flange for general utility piping.
Lap Joint Steel Flange
A two-piece steel flange system with a stub end for easy alignment and rotation in alloy pipe systems. Classified under HTS 7307.91.50 as an other flange ideal for frequent disassembly.
Steel Reducing Flange
A steel flange that connects pipes of different diameters, maintaining pressure integrity in transition points. It is covered by HTS 7307.91.50 as an other iron or steel flange for size adaptation.