Alloy Steel Reducing Coupling
A reducing coupling fitting made from alloy steel (non-stainless) that connects pipes of different diameters, ensuring seamless transitions in piping networks. It qualifies for HTS 7307.99.50.60 as an other alloy steel pipe fitting for pressure applications. Essential in petrochemical plants for size adaptations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel material
Stainless reducing couplings are headed under 7307.92 for material differentiation in steel fittings.
If cast iron or non-alloy steel
Cast versions or non-alloy steel couplings fall under 7307.11/7307.19, excluding alloyed compositions.
If supplied as unfinished tubes rather than fittings
Unmachined alloy steel tubes classify in 7304 as raw pipes, not completed fittings per Chapter 73 notes.
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Import Tips & Compliance
• Document exact dimensions (e.g
• 4" to 2" reduction) and NPS schedule to match statistical reporting requirements
• Test for alloy content (e.g
• chromium under 11.5%) to distinguish from stainless and support classification
Related Products under HTS 7307.99.50.60
Alloy Steel Tee Pipe Fitting
A T-shaped pipe fitting of alloy steel (except stainless) that allows a pipe branch connection perpendicular to the main line, ideal for hydraulic systems. Classified under HTS 7307.99.50.60 for other alloy steel tube/pipe fittings not specified elsewhere. Used in construction and manufacturing for fluid distribution.
Alloy Steel Cross Pipe Fitting
A cross-shaped fitting of alloy steel (except stainless) enabling four-way pipe connections, used in complex industrial manifolds. Falls under HTS 7307.99.50.60 for other alloy steel tube/pipe fittings. Applied in high-pressure steam systems.
Alloy Steel Union Pipe Fitting
A union fitting made of alloy steel (non-stainless) allowing easy disconnection of pipes without cutting, with swivel nut design. Fits HTS 7307.99.50.60 as other alloy steel tube fittings. Vital for maintenance in HVAC systems.
Alloy Steel Nipple Pipe Fitting
Short threaded nipple fitting from alloy steel (non-stainless), connecting two pipes or fittings closely. HTS 7307.99.50.60 covers this as other alloy steel fitting. Used in instrumentation and machinery.
Alloy Steel Wye Pipe Fitting
Y-shaped wye fitting of alloy steel (except stainless) for splitting flows in piping, common in sewer and ventilation. Under HTS 7307.99.50.60 as other alloy steel tube fittings. For municipal infrastructure.
Alloy Steel Flange Adapter Fitting
Adapter fitting with one flanged end and one pipe end, made of alloy steel (non-stainless), for flange-to-pipe transitions. HTS 7307.99.50.60 for other alloy steel fittings. Used in power plants.