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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.5% | +35.0% | 40.5% |
| 🇲🇽Mexico | 5.5% | +10.0% | 15.5% |
| 🇨🇦Canada | 5.5% | +10.0% | 15.5% |
| 🇩🇪Germany | 5.5% | +10.0% | 15.5% |
| 🇯🇵Japan | 5.5% | +10.0% | 15.5% |
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 forged construction
Forged slip-on flanges qualify for the dedicated forged flange subheading.
If for retail sale in smaller sizes
Smaller flanges under 356mm may fall under threaded or other specific fittings if not industrial-grade.
If imported as parts of pumps
Flanges specifically for pump assemblies are classified by end-use under pump parts headings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Label flanges with size, class rating, and material grade to meet country of origin marking requirements
• Check for anti-dumping duties on certain carbon steel products from specific countries like China or India
• Ensure proper packing to prevent damage, as customs may inspect for flange warping or coating integrity
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.
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.
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.