A387 Grade 11 Heat-Resistant Alloy Steel Plate from United States
ASTM A387 Grade 11 is a chromium-molybdenum alloy steel plate with a width exceeding 600 mm, used for elevated-temperature service in refinery and pressure vessel applications. Its chromium content of 1% to 1.5% by weight qualifies it as other alloy steel, but it does not meet the 10.5% chromium threshold for stainless steel. The product is hot-rolled and not further worked, placing it under tariff item 7225.99.00 as 'Other' flat-rolled alloy steel.
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
• Keep the mill certificate showing chromium and molybdenum percentages to support classification as other alloy steel
• Verify that the plate width exceeds 600 mm; otherwise, heading 72.26 applies
• Consider whether the product qualifies for preferential duty treatment under a trade agreement