Oxygen

Oxygen (O2) comprises 21 percent of the earth’s atmosphere and supports life. The presence of oxygen makes combustion possible. Colorless, odorless and tasteless, high purity oxygen (99.5 %) is used to support oxy-fuel cutting operations. Oxygen may be added in controlled amounts to GMAW shielding gases. Oxygen is also used as the plasma cutting gas (with Hafnium electrodes) on carbon steel.

oxygen cylinder

Oxygen Cylinder Transportation Information

Chemical FormulaO2
Minimum Purity99.5%
Cylinder CGA Outlet540
701 (greater than 3,000 psig)
MSDSP-4638
CAS Number7782-44-7
UN Number1072
US DOT NameOxygen, Compressed
US DOT LabelNonflammable Gas, Oxidizer
US DOT Class2.2 Nonflammable Gas

Oxygen Cylinder Information

Cylinder StyleVolume (ft3/m3)Pressure at 70°F (21C°) (psig/kPa)Part Number
T337/9.352640/18202OX T
K249/6.912200/15168OX K
oxygen dewar

Cryogenic Liquid Oxygen Transportation Information

Chemical FormulaO2
Minimum Purity99.5%
Normal Boiling Point-297°F (-183C°)
Cylinder CGA Outlet440 (Liquid)
MSDSP-4637
CAS Number7782-44-7 (R)
UN Number1073
US DOT NameOxygen, Refrigerated Liquid
US DOT LabelNonflammable Gas, Oxidizer
US DOT Class2.2 Nonflammable Gas

Cryogenic Liquid Oxygen Dewar Information

Cylinder StyleVolume (ft3)Pressure (psig)Part Number
160 Liter4,580230OX LC160-230
200 Liter5,110230OX LC200-230
230 Liter5,440230OX LC230-230
250 Liter6,250230OX LC250-230