Stainless Steel Blind Flange 150# Class
A 150# class blind flange of stainless steel used to seal pipe ends in oil and gas pipelines. It prevents flow and allows future access, classified under HTS 7307.21.5000 as other stainless steel flanges. Not a wire product due to its large cross-section.
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 not stainless steel (cast iron or ductile iron)
Non-steel or cast iron flanges classify under flanges of other materials in the same heading.
If incorporating quick-connect coupler systems
Specialized coupler flanges may fall under other stainless fittings, not pure flanges.
If imported as unfinished castings
Unmachined cast pipe fittings classify under tubes/pipes of stainless steel, not finished fittings.
Not sure which classification is right?
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Import Tips & Compliance
• Provide pressure class markings and ASME B16.5 compliance docs to match exact statistical reporting
• Declare nominal pipe size (NPS) accurately to avoid undervaluation penalties
• Watch for country-of-origin rules; many stainless flanges face additional tariffs from EU or Asian origins
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.
Stainless Steel Long Weld Neck Flange
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Super Duplex SAF2507 Flange
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321 Stainless Steel Flange
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