Threaded Alloy Steel Reducer Coupling 4x2 inch
Alloy steel (non-stainless) threaded reducer sleeve coupling transitioning from 4-inch to 2-inch pipe diameters in process piping. Falls under HTS 7307.92.3030 as a sleeve-type fitting despite size reduction, due to its coupling function and alloy material.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel version
Stainless reducers use 7307.23 for threaded stainless fittings, separated by material chapter notes.
If flanged rather than threaded
Flanged alloy steel fittings fall into 'other' non-threaded categories like 7307.99.
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Import Tips & Compliance
• Invoice must detail both end sizes and thread type; reducer function shouldn't misclassify as elbow
• Hydrostatic test certificates help prove pressure integrity for customs valuation
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