Shieldpro 22

Shieldpro 22 (formerly Supagas Supa-alloy H5) is a high performance gas used for the welding of stainless steel, nickel and alloys

Ar / H2

Shieldpro 22 mixtures has the addition of hydrogen, which improves performance in the areas of welding speed, penetration, profile, surface appearance, metallurgical benefits etc. This in turn improves the two major areas of concern in a welding process - quality and economics.


  • Ideal for TIG welding of stainless steel, nickel and alloys 2mm and above
  • Hydrogen addition gives higher welding speed due to hotter and more constricted arc
  • Austenitic steels only
  • Increased deposition rates
  • Reduced oxides
  • Improved weld profile

Product Summary

Gas composition

  • Argon 95%
  • Hydrogen 5%

Compressed gas sizes

UN number: 1956

Download safety data sheet


Size Product code Volume / m³ Weight (full) / kg Pressure / kPa Outlet connection Availability
SG 264150 10.6 81.8 20,000 Type 30 NZ wide
12-pack 264512 127.5 1196.8 20,000 Type 20 NZ wide
Additional Details

Physical & chemical properties

Appearance Odour Flammability
AppearanceColourless gas OdourOdourless FlammabilityFlammable

Hazard class


Hazard symbol (GHS)

  • Flammable gas 2.1
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