Argon
Hydrogen, rare gases and other nonmetals: > Rare gases: > Argon
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2804.21.00.00
Industrial Grade Argon Gas
Pure argon gas, chemically defined as a rare gas with atomic number 18, supplied in high-pressure cylinders for industrial applications. It falls under HTS 2804.21.00.00 as argon, a nonmetal rare gas in the gaseous state. This classification applies to commercially pure argon used in manufacturing and welding.
Welding Grade Argon Cylinder
High-purity argon gas (99.999%) in 250 cubic foot steel cylinders, optimized for TIG and MIG welding to provide an inert shielding atmosphere. Classified under HTS 2804.21.00.00 as pure argon, a rare gas, excluding mixtures or processed gases. This ensures accurate tariff application for bulk industrial imports.
High Purity Argon for Laboratories
Ultra-high purity argon (99.9999%) in small lecture bottles for analytical chemistry, spectroscopy, and inert atmosphere glove boxes. It qualifies under HTS 2804.21.00.00 as chemically defined pure argon gas, per Chapter 28 definitions excluding organo-inorganic compounds.
Argon Gas for 3D Metal Printing
Pure argon gas supplied in large format cylinders for selective laser melting (SLM) in additive manufacturing, preventing oxidation during metal powder fusion. Falls under HTS 2804.21.00.00 as unprocessed rare gas argon, not as a mixture or preparation.
Medical Grade Argon Plasma Coagulation Gas
Sterile, ultra-pure argon gas in disposable cartridges for argon plasma coagulation (APC) devices used in endoscopy to control bleeding. Classified in HTS 2804.21.00.00 as pure argon rare gas, provided not pre-mixed or in final medical devices.
Argon Shielding Gas for Steel Fabrication
Commercially pure argon in 300 cu ft cylinders for GMAW welding in heavy steel fabrication, creating inert shield against atmospheric contamination. HTS 2804.21.00.00 applies to this elemental rare gas in gaseous form, per Chapter 28 notes.
Spectroscopy Grade Argon
Argon gas with impurity levels below 1 ppm, packaged in 40L cylinders for inductively coupled plasma (ICP) spectroscopy elemental analysis. It is classified under HTS 2804.21.00.00 as chemically defined pure argon, excluding doped electronic forms.
Argon for Semiconductor Manufacturing
Hyper-pure argon (6N purity) in tonner cylinders for sputter deposition and plasma etching in wafer fabrication cleanrooms. Falls precisely under HTS 2804.21.00.00 as elemental rare gas argon, unworked gaseous form.