310 Stainless Steel Process Pipe 76mm OD
Welded 310 high-temperature stainless pipe, 76 mm OD, 4 mm wall, 19-22% nickel. Falls under HTS 7306.40.50.64 as welded circular stainless steel tube/pipe, OD ≤114.3 mm, thick wall, nickel <24%. For furnace and heat exchanger applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless and for boilers
Boiler-service seamless stainless tubes go to 7304.39, excluding welded types.
If outside diameter >114.3 mm
Larger OD welded stainless pipes classify in adjacent 7306.40.51 subheading.
If as components of heat exchangers
Assembled into machinery, shifts to Chapter 84 functional classification.
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Import Tips & Compliance
• High-nickel 310 requires detailed spectrometry reports to confirm <24% Ni for this subheading
• Cut lengths must be straight tubes; coiled imports may classify differently if over length limits
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