Rough Iron Orifice Flange
Forged iron flange pair for flow measurement with orifice plate, supplied rough post-forging. Used in oil/gas metering. 7307.91.10.00 for nonalloy, unmachined state.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy steel orifice types
Material alloying separates headings within flanges.
If including integral flow instruments
Instrument-integrated flanges become Chapter 90 articles.
If bulk industrial scrap/seconds
Imperfect forgings may classify as other steel fabrications.
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Import Tips & Compliance
• Pair with orifice plate documentation if shipped together to avoid set reclassification
• Highlight forging origin in commercial invoice
• Test for nonalloy purity to prevent alloy duty hikes
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