Black Malleable Iron Threaded Sleeve Coupling
Malleable iron threaded sleeve for joining pipes in fire sprinkler or steam systems, featuring a black oxide finish. HTS 7307.92.30 applies to this iron-based threaded sleeve (coupling) pipe fitting. Its ductility allows for bending without breaking.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functions as threaded bend component
Bend-integrated sleeves classify as threaded bends, not pure sleeves.
If imported as unfinished tube section
Incomplete threading makes it a steel tube, not finished fitting.
If stainless steel malleable equivalent
Material change to stainless shifts to dedicated stainless heading.
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Import Tips & Compliance
• Certify compliance with ASTM A197 for malleable iron to pass customs inspection
• Declare exact iron composition; alloyed versions may shift to steel classifications
• Use HS invoice description matching 'threaded sleeve' to prevent valuation disputes
Related Products under HTS 7307.92.30
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Industrial Threaded Steel Long Sweep Sleeve
Extended length steel threaded sleeve for smooth flow transitions in chemical processing pipes. Classified HTS 7307.92.30 as threaded sleeve coupling. Minimizes turbulence.
Galvanized Steel Threaded Pipe Sleeve
A threaded sleeve coupling made of galvanized iron or steel, used to join two threaded pipes end-to-end in plumbing systems. It falls under HTS 7307.92.30 as a threaded sleeve (coupling) for tube or pipe fittings of iron or steel. The zinc coating provides corrosion resistance for outdoor or wet environments.
Carbon Steel NPT Threaded Coupling Sleeve
Threaded sleeve coupling of carbon steel with NPT (National Pipe Thread) ends, designed for connecting black iron pipes in gas or water lines. Classified under HTS 7307.92.30 for its role as a threaded sleeve in steel pipe fittings. Commonly used in residential and industrial piping.
Schedule 40 Steel Threaded Straight Sleeve
Schedule 40 wall thickness steel sleeve with internal threads for straight pipe connections in irrigation systems. Falls under HTS 7307.92.30 as a threaded sleeve coupling of iron or steel. Meets ANSI B1.20.1 standards for pressure applications.
Brass-Plated Steel Threaded Pipe Coupler Sleeve
Steel sleeve with brass plating and female NPT threads on both ends for corrosion-prone water lines. Classified in HTS 7307.92.30 despite plating, as base material is steel for threaded sleeve fittings. Enhances durability in decorative plumbing.