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).

argon cylinder

Industrial Argon Gas Transportation Information

Chemimcal FormulaAr
Minimum Purity99.995%
Cylinder CGA Outlet580
690 (greater than 3,000 psig)
CAS Number7440-37-1
UN Number1006
US DOT NameArgon, compressed
US DOT LabelNonflammable gas
US DOT Class2.2 Nonflammable Gas

Argon Cylinder Information

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

argon dewar

Industrial Argon Cryogenic Liquid Transportation Information

Chemimcal FormulaAr
Minimum Purity99.997%
Normal Boiling Point-302°F (-185°C)
Liquid Cylinder CGA Outlet295 (liquid)
CAS Number7440-37-1 (R)
UN Number1951
US DOT NameArgon, Refrigerated Liquid
US DOT LabelNonflammable Gas
US DOT Class2.2 Nonflammable Gas

Industrial Argon Dewar Information

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