Stainless Steel Long Weld Neck Flange
Extended hub long weld neck flange in stainless steel for high-temperature steam lines in power plants. Provides reinforcement for high-stress applications, under HTS 7307.21.5000 as other stainless flanges. Forged construction exceeds wire specs.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.6% | +35.0% | 40.6% |
| 🇲🇽Mexico | 5.6% | +10.0% | 15.6% |
| 🇨🇦Canada | 5.6% | +10.0% | 15.6% |
| 🇩🇪Germany | 5.6% | +10.0% | 15.6% |
| 🇯🇵Japan | 5.6% | +10.0% | 15.6% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If socket-weld type
Socket-weld stainless flanges have a dedicated subheading separate from other flanges.
If imported as welded pipe sections with flange
Prefabricated welded pipes with fittings classify under Chapter 73 pipes, not separate fittings.
If for steam turbine assemblies
Specialized end-use in turbines reclassifies under Chapter 84 machinery parts.
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
• Submit forging/heat treatment records to prove stainless integrity against counterfeiting claims
• Classify by ANSI pressure class (e.g
• 300#) for accurate duty assessment
• Avoid misclassification by specifying 'flange only' vs bundled with gaskets (which may create sets)
Related Products under HTS 7307.21.50.00
304 Stainless Steel Weld Neck Flange
A weld neck flange made from 304 stainless steel, designed for high-pressure piping systems in chemical processing plants. It connects pipes securely via welding and is classified under HTS 7307.21.5000 as a stainless steel flange, other than socket or threaded types. The 'wire' definition does not apply as this is a cast or forged fitting.
316L Stainless Steel Slip-On Flange
A slip-on flange crafted from 316L stainless steel, ideal for moderate-pressure applications in food and beverage processing. It slips over the pipe end and is fillet welded, fitting HTS 7307.21.5000 for other stainless steel flanges. Exceeds wire dimensions, qualifying as a pipe fitting.
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321 Stainless Steel Flange
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