Cast Iron Pressure Sewer Pipe Class 52 DN250
High-strength cast iron pressure pipe, inside diameter 250 mm (9.84 inches), Class 52 rating for pressurized sewer force mains. Push-on joint design with protective linings. Fits HTS 7303.00.00.60 for cast iron pressure pipes under 356 mm ID.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing 3.5%+ nickel as alloy cast iron
Alloy cast pipes with specific Ni content are classified under heading 7307 for tube/pipe fittings.
If refractory cast iron for high-temperature pressure use
Refractory ceramic pipes of cast iron shift to Chapter 69.
If centrifugally cast but not pressure-rated
Non-pressure centrifugally cast pipes remain under 7301.
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Import Tips & Compliance
• Include joint type (push-on/bell-spigot) and lining specs (cement/epoxy) in import docs to avoid reclassification
• Obtain material test certificates confirming ductile iron composition per ISO 1083
Related Products under HTS 7303.00.00.60
Ductile Iron Pressure Water Pipe DN200
A seamless ductile cast iron pipe with an inside diameter of 200 mm (7.87 inches), designed for high-pressure water distribution systems. It features a cement mortar lining and external bituminous coating for corrosion resistance. Classified under HTS 7303.00.00.60 as pressure pipe of cast iron with inside diameter less than 356 mm.
AWWA C151 Ductile Iron Pressure Pipe 8-inch
8-inch (203 mm ID) ductile iron pressure pipe meeting AWWA C151 standards for municipal water transmission under pressure. Features polyurethane internal lining. HTS 7303.00.00.60 applies to cast iron pressure pipes <356 mm diameter.
Ductile Iron Fire Hydrant Pressure Pipe DN150
DN150 (6-inch, 159 mm ID) ductile cast iron pipe for underground fire hydrant supply lines under pressure. Corrosion-resistant exterior coating. Covered by HTS 7303.00.00.60 for small-diameter cast iron pressure pipes.
Class 50 Ductile Iron Pressure Pipe 12-inch
12-inch nominal (305 mm ID) Class 50 ductile iron pressure pipe for irrigation and municipal pressure mains. Double cement-lined with seal-coated exterior. HTS 7303.00.00.60 for cast iron pressure pipes under 14 inches ID.
Centrifugally Cast Iron Pressure Pipe DN100
DN100 (4-inch, 109 mm ID) centrifugally cast ductile iron pressure pipe for high-pressure service lines. Polyethylene encased for extra protection. Qualifies under HTS 7303.00.00.60 as small ID pressure pipe of cast iron.
Ductile Iron Pressure Pipe for Pump Discharge 10-inch
10-inch (254 mm ID) ductile iron pipe rated for pump discharge pressures up to 350 psi. Flanged ends optional, cement lined. HTS 7303.00.00.60 covers this cast iron pressure pipe size.