Hastelloy C-276 Cold-Rolled Seamless Pipe
Hastelloy C-276 seamless pipes are cold-rolled from high-nickel alloy steel (Ni-Mo-Cr with ~57% nickel) for extreme corrosion resistance in flue gas desulfurization. These circular cross-section hollow profiles are seamless and cold-reduced, qualifying under HTS 7304.51.50.05 for high-nickel alloy steel. Commonly used in pollution control and marine applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If hot-finished rather than cold-drawn/rolled
Hot-formed seamless tubes of high-nickel alloy classify under 7304.51.10, while cold-reduced go to 7304.51.50.
If further processed into hollow bars over 16mm cross-section
Chapter 72 covers semi-finished products; if not qualifying as 'tube/pipe', may shift there.
If threaded or fitted with connectors for retail sale
Tube/pipe fittings or threaded versions classify under 7307 as fittings, not base tubes.
Not sure which classification is right?
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Import Tips & Compliance
• Submit chemical analysis reports confirming high nickel content (>30%) to distinguish from standard alloy steels
• Label as 'cold-rolled seamless' with dimensions; pitfalls include misdeclaration as hot-finished leading to 7304.41
• Comply with NACE MR0175 for sour service if applicable, ensuring proper documentation for customs
Related Products under HTS 7304.51.50.05
Incoloy 825 Seamless Cold-Drawn Tube
Incoloy 825 is a high-nickel alloy steel (Ni-Fe-Cr alloy with >38% nickel) used for seamless cold-drawn tubes in corrosive environments like chemical processing. These tubes have a circular cross-section, are cold-rolled for precision, and fall under HTS 7304.51.50.05 due to their high-nickel composition and seamless construction. They are ideal for heat exchangers and piping in harsh industrial settings.
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