Alloy 20Cb-3 Sheet
Flat-rolled sheet of Carpenter 20Cb-3 high-nickel alloy steel (Ni 32-38%, Cr 19-21%), width ≥600 mm, for sulfuric acid handling equipment. HTS 7225.99.0010 covers this acid-resistant high-nickel flat product. Balances austenitic structure with stabilized composition.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If Ni content doesn't meet high-nickel threshold
Verification of nickel percentage determines specific vs general alloy steel heading.
If electrolytically coated
Coated flat-rolled products receive separate classification per further working note.
If width <600 mm or silicon-electrical
Dimension and electrical steel provisions separate from wide high-nickel plates.
Not sure which classification is right?
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Import Tips & Compliance
• Include ASTM specification references (B463) in entry docs to validate alloy classification
• Separate shipments by alloy type to avoid commingling with non-high-nickel products
• Pre-inspect for surface treatments that could trigger 'further worked' reclassification
Related Products under HTS 7225.99.00.10
Incoloy 800H Flat-Rolled Sheet
Flat-rolled sheet of Incoloy 800H, a high-nickel alloy steel containing over 30% nickel, 20% chromium, and iron balance, with width exceeding 600 mm. Classified under HTS 7225.99.0010 due to its high-nickel alloy composition and flat-rolled form not fitting other specific alloy categories. Used primarily in heat exchangers and furnace components for high-temperature corrosion resistance.
Hastelloy C-276 Plate
Flat-rolled plate of Hastelloy C-276 high-nickel alloy steel (Ni 57%, Mo 16%, Cr 16%), width over 600 mm, used in chemical processing equipment. Falls under HTS 7225.99.0010 as high-nickel alloy steel flat products not cold-rolled or further specified. Offers superior resistance to corrosive environments.
Inconel 625 Hot-Rolled Sheet
Hot-rolled flat sheet of Inconel 625 (Ni 58%, Cr 20-23%, Mo 8-10%), width 600 mm or more, for aerospace and marine turbine components. HTS 7225.99.0010 applies to this high-nickel alloy steel not cold-formed or further worked. Provides exceptional strength and oxidation resistance at elevated temperatures.
Monel 400 Flat Plate
Flat-rolled plate of Monel 400 high-nickel alloy (Ni 65%, Cu 30%), over 600 mm wide, for valves and pumps in seawater applications. Classified in HTS 7225.99.0010 as high-nickel alloy steel flat product meeting width criteria. Known for excellent corrosion resistance in marine environments.
Incoloy 825 Mill Plate
Universal mill plate of Incoloy 825 high-nickel alloy (Ni 38-46%, Cr 19.5-23.5%), width 600-1250 mm, thickness ≥4 mm, per U.S. Note (b). HTS 7225.99.0010 for this flat-rolled high-nickel product not in coils. Ideal for oil & gas sour service applications.