Shielding Gases

Gases used for electric welding of metals normally consist of mixtures of various inert gases in different quantities.

Constituent gases in Irish Oxygen Shielding Mixture

ISO-14175 is the international standard which classifies the gases for welding.
Click here for table of welding gases, the ISO-14175 classification and their components.

Properties

These depend on the constituent elements in the mixture. However, most shielding gases are inert.

Uses

Shielding gas mixtures for electric welding.

Safety

Most inert gases in high enough concentrations may cause asphyxiation and death. For more detail on any hazards associated with a particular welding gas check the relevant Safety Data sheet.

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