What is Argon?

Argon is colorless, odorless, tasteless and nontoxic. Argon (Ar) is a noble gas that comprises 0.93 % of the earth’s atmosphere. Argon provides an inert and clean environment free from nitrogen and oxygen for annealing and rolling metals and alloys. In the casting industry, argon is used to flush porosity from molten metals to eliminate defects in castings. In the metal fabrication industry, argon is used to create an optimized atmosphere during open arc welding. Argon is frequently blended with carbon dioxide (CO2), hydrogen (H2), Helium (He) or Oxygen (O2) to enhance the arc characteristics or to facilitate stable metal transfer in Gas Metal Arc Welding (GMAW or MIG).

Industrial Argon

Chemimcal FormulaMinimum PurityCylinder CGA OutletMSDSCAS NumberUN NumberUS DOT NameUS DOT LabelUS DOT Class
Ar99.995%580
690 (greater than 3,000 psig)		P-45637440-37-11006Argon, compressedNonflammable gas2.2 Nonflammable Gas
Cylinder StyleVolume (ft3 / m3)Pressure at 70°F (21°C) (psig/kPa)Part Number
T335/9.302,640/18,202AR T
K248/6.882,200/15,168AR K

Industrial Argon, Cryogenic Liquid

Chemimcal FormulaMinimum PurityNormal Boiling PointLiquid Cylinder CGA OutletMSDSCAS NumberUN NumberUS DOT NameUS DOT LabelUS DOT Class
Ar99.997%-302°F (-185°C)295 (liquid)P-45647440-37-1 (R)1951Argon, Refrigerated LiquidNonflammable Gas2.2 Nonflammable Gas
Cylinder StyleVolume (ft3)Pressure at 70°F (21°C) (psig)Part Number
160 Liter4,460230AR LC160-230
200 Liter4,961230AR LC200-230
230 Liter5,290230AR LC230-230
250 Liter6,080230AR LC250-230
450 Liter Microbulk12,478350AR LC450-350
1000 Liter Microbulk28,225350AR LC1000-350
1500 Liter Microbulk42,950350AR LC1500-350