Thin-Wall 321 Stainless Steel Tubing from United States
Thin-wall 321 stainless steel tubing is a welded tube with a circular cross-section, made from grade 321 stainless steel which contains more than 0.5% nickel. It has a wall thickness of less than 1.65 mm, qualifying it under tariff item 7306.40.00 for other welded stainless steel tubes. This tubing offers excellent resistance to intergranular corrosion at high temperatures, making it suitable for aerospace and chemical processing applications.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Verify the grade 321 composition and nickel content with a mill certificate to support classification
• Confirm the wall thickness is below 1.65 mm
• If the tubing is for aerospace use, ensure compliance with Transport Canada regulations