HY-80 High-Yield Submarine Hull Steel Plate from United States
HY-80 is a nickel-chromium-molybdenum alloy steel plate, 800 mm wide, used for naval submarine hull construction with a yield strength of 80 ksi. Its multi-element alloy composition (nickel, chromium, molybdenum) qualifies it as other alloy steel, but it does not meet stainless steel criteria. As a hot-rolled flat product not further worked, it is classified under tariff item 7225.99.00 as 'Other'.
Duty Rate — United States → Canada
Rate breakdown
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- GAC
Steel · Required
Global Affairs Canada: GAC Steel (Carbon Steel) requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Within Range 7225000000–7229999999).
CBSA Single Window matching criteria, unknown
Import Tips
• Due to its military-grade nature, verify any export or import permits required by Canadian authorities
• Provide detailed alloy composition and heat treatment records to support classification
• The width exceeds 600 mm, so heading 72.25 applies; ensure it is not further worked beyond hot-rolling