Nitrogen Gas for Welding Shielding from Mexico
Pure nitrogen in cylinders for laser welding and plasma cutting, providing shielding atmosphere. Classified in HTS 2804.30.00.00 as nonmetal nitrogen gas per Chapter 28 hierarchy.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Certify welding-grade purity (>99.99%); DOT 39 cylinders required
• Avoid classifying pure N2 with argon as welding mix under 2853