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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for retail sale in simple shapes
Flat-rolled products of stainless/high-nickel steel in retail packs classified by end-use in 7219.
If grain-oriented electrical steel
Silicon-electrical steel alloys have separate provisions from high-nickel types.
If considered copper-nickel base alloy
High copper content may shift classification to Chapter 74 copper alloys.
Not sure which classification is right?
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Import Tips & Compliance
• Provide origin certificates showing non-high-strength steel specs to avoid 7225.99.3030 confusion
• Measure and declare exact dimensions; borderline widths trigger CBP verification
• Maintain traceability documentation for alloy composition throughout supply chain
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.
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.