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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If nickel content below high-nickel alloy threshold
Products of other alloy steel not specifically high-nickel fall under the residual 'Other' subheading.
If further worked with surface treatments like polishing or coating
Chapter notes define 'further worked' products (polished, coated, etc.) as classified in heading 7219 rather than 7225.
If width less than 600 mm
Flat-rolled alloy steel products under 600mm width are classified in 7226, not 7225.
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Import Tips & Compliance
• Provide mill test certificates confirming high-nickel alloy composition (Ni > 30%) to avoid reclassification
• Ensure accurate width measurement documentation as products under 600mm shift to Chapter 72 headings for narrower strips
• Declare exact chemical analysis to distinguish from tool steel or stainless steel categories in Chapter 72
Related Products under HTS 7225.99.00.10
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.
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.
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.