Hydrogen 4.0

Hydrogen is an extremely flammable gas that is lighter than air. This industrial grade hydrogen is available in a range of sizes either as a compressed gas or as a cryogenic liquid


Hydrogen 4.0 is used extensively in metal cutting and welding applications. It is also used to lift weather balloons to high altitude. Hydrogen molecules are small, making them ideal for leak detection. Hydrogen has a low viscosity and a high thermal conductivity making it ideal for filling inside turbo generators. In cryogenic liquid format, liquid hydrogen is often abbreviated to 'LH2'.


  • Component in welding mixtures
  • Metal cutting
  • Hydrogenation process for the production of margarine
  • Hydrodesulphurisation of fuel
  • Due to its small molecules, it is ideal for leak detection when used alongside hydrogen detectors
  • Prevents metal oxidation during heat treatment
  • Due to its low viscosity and high thermal conductivity, it is extensively used as a coolant gas in power generators
  • Fuel cells, eg for fuel cell electric vehicles
  • Lifting weather balloons to high altitude
Product Summary

Gas composition

  • Hydrogen ≥ 99.99%


Moisture ≤ 20 ppm
Oxygen ≤ 10 ppm

Compressed gas sizes

UN number: 1049

Download safety data sheet


Size Product code Volume / m³ Weight (full) / kg Pressure / kPa Outlet connection Availability
E 319122 4.1 20,000 Type 20 NZ wide
G 319150 8.8 20,000 Type 20 NZ wide
12-pack 319512 106 20,000 Type 20 NZ wide

Cryogenic liquid sizes

UN number: 1966


Contact us direct for more information about our bulk and cryogenic liquid range
Additional Details

Physical & chemical properties

Appearance Odour Flammability
AppearanceColourless gas OdourOdourless FlammabilityExtremely flammable

Hazard class


Hazard symbol (GHS)

  • Flammable gas 2.1
Have a question about a product?

Contact our professional team for questions about products, pricing, creating an account & more.

Contact us