Oxygen 3.5

High purity laser assist gas for the laser cutting of mild steel


Oxygen 3.5 can enable even higher cutting speeds and greater thicknesses at lower pressure and flow rate than industrial grade oxygen (2.5) when cutting carbon steel.


  • Used at the point in the cutting process where the laser interacts with the material being cut

Product Summary

Gas composition

  • Oxygen ≥ 99.95%


Moisture ≤ 15 ppm

Available sizes


Size Product code Volume Weight (full)* Pressure Outlet connection Availability Cert. of Conformance
SG 205150 10.6m³ 67.3 20,000 kpa 10 Australia wide Download
12-pack 205512 156 m³ 1207 kg 25,000 kpa 10 Australia wide Download
Additional Details

Physical & chemical properties

Appearance Odour Flammability
AppearanceColourless gas OdourOdourless FlammabilityNon flammable

UN number


Hazard class

2.2, 5.1

Hazard symbol (GHS)

  • Non-flammable non-toxic gas 2.2
  • Oxidising agent 5.1