Argon
Hydrogen, rare gases and other non-metals. > Rare gases: > Argon > Argon
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Products classified under Tariff item 2804.21
Argon for Semiconductor Manufacturing
Hyper-pure argon (6N purity) in tonner cylinders for sputter deposition and plasma etching in wafer fabrication cleanrooms. This is elemental argon in gaseous form, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00Argon 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. This is elemental argon in gaseous form, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00Argon 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. This is elemental argon in gaseous form, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00High Purity Argon for Laboratories
Ultra-high purity argon (99.9999%) in small lecture bottles for analytical chemistry, spectroscopy, and inert atmosphere glove boxes. This is chemically defined pure argon gas, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00Industrial Grade Argon Gas
Pure argon gas, chemically defined as a rare gas with atomic number 18, supplied in high-pressure cylinders for industrial applications. This is elemental argon in gaseous form, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00Medical 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. This is pure argon rare gas, provided it is not pre-mixed or in a measured dose for retail sale as a medicament.
2804.21.00Spectroscopy Grade Argon
Argon gas with impurity levels below 1 ppm, packaged in 40L cylinders for inductively coupled plasma (ICP) spectroscopy elemental analysis. This is chemically defined pure argon, a rare gas of Chapter 28, and is not mixed with other substances.
2804.21.00Welding 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. This is pure argon, a rare gas of Chapter 28, and is not mixed with other substances.