Alloy 20 Cold-Rolled Seamless Tube
Alloy 20 (Carpenter 20) high-nickel (~32% nickel) cold-rolled seamless tubes for sulfuric acid handling in chemical plants. Seamless, circular cross-section cold-reduced pipes under HTS 7304.51.50.05 for high-nickel alloy steel. Resist pitting and crevice corrosion.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If deemed stainless due to chromium levels
Chromium-dominant alloys classify as stainless under 7304.41.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• UNS N08020 certs essential; borderline nickel content needs lab verification
• Avoid bulk packing that mimics Chapter 72 blooms
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.
Greek Ascoloy Cold-Rolled Seamless Pipe
Greek Ascoloy high-nickel austentic alloy cold-rolled pipe for springs. HTS 7304.51.50.05.
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.
Inconel 718 Cold-Drawn Tube
Inconel 718 high-nickel alloy (~52% nickel) cold-drawn seamless tubes for oil & gas downhole tools and turbine components. These cold-rolled circular hollow profiles classify under HTS 7304.51.50.05 as seamless high-nickel steel pipes. Provide superior strength at cryogenic temperatures.
Hastelloy X Cold-Drawn Pipe
Hastelloy X seamless cold-drawn pipes from high-nickel (~47% nickel) alloy steel for gas turbine combustion zones. Cold-rolled circular profiles per HTS 7304.51.50.05. High-temperature oxidation resistance.
Incoloy 800H Seamless Tube
Incoloy 800H cold-drawn seamless tubes (~30-35% nickel) for ethylene furnace tubing. HTS 7304.51.50.05 high-nickel alloy steel.