Gas for stainless and aluminium

  1. TechnicAl

    TechnicAl Member

    Messages:
    8,256
    Location:
    Rotherham
    i quite like Argonox as a shield....either 1 or 2 oxy....it can be used with mild steel and stainless mig and many gas shielded fcw....the results are good....its probably expensive

    it was often used for stainless before the argon 2.5 co2.....now the cynic in me thinks it was the gas people who made the change and not the users.....backpurge will probably put me right
     
    Brad93 likes this.
  2. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    I’ve run 2% oxygen on stainless. Works nice. Can’t say I thought it was better or worse that 2.5% CO2.

    In Argoshield universal which is 12% CO2, the oxygen is 2%.
     
  3. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
  4. Think the O2 mix was superseded by the CO2 mix due to reduced surface oxide formation, personally don’t rate the 2% O2 mix for stainless but think it’s great for mild steel sheet metalwork when your main objective is cosmetics rather than weld strength
     
  5. Bluemotion

    Bluemotion Member

    Messages:
    140
    Location:
    Holmfirth
    Looks like I need to be a mathematician to follow you lot over blended gases
     
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