5456-H321 Aluminum Alloy Shipbuilding Plate from United States
5456-H321 weldable alloy plate exceeding 6.3 mm for hull plating in marine vessels. The magnesium and chromium composition exceeds pure aluminum limits, classifying it as an alloy, and the unclad form fits this item.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Confirm the plate is unclad and exceeds 0.2 mm thickness
• Provide alloy composition certificates
• Be aware of potential anti-dumping duties on aluminum