ASTM A519 4140 Seamless Mechanical Tubing from Canada
4140 chrome-moly seamless mechanical tubing, 100mm OD x 16mm wall, for machinery shafts and axles. Falls under HTS 7304.59.80.25 as other seamless alloy steel tubes with wall thickness exceeding 12.7mm and OD 38.1-114.3mm. Offers excellent strength for heavy equipment components.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify mechanical tubing vs pressure tubing in commercial invoice to prevent boiler tube assumptions
• Document surface condition (hot finished vs cold drawn) as it affects alternative classifications