Argon Technical grade 4.8 (99.998%). A weld process mixture is classified in group I1 according to ISO14175. Known for its unique inerting properties, Argon is a popular welding gas for TIG welding of all weldable metals and alloys and MIG welding of aluminium and other reactive materials. Supplied in the new revolutionary digital 30 litre Integra® e² cylinder at 300 bar. The Integra® e² cylinder, not only provides essential gas information on the cylinder and via our App, the advanced technology also saves gas in 4 different ways. Our Integra® cylinder range is safer, smaller and lighter. The Integra® cylinder is designed to be used with a choice of Integra® flow optimisers (available separately) which ensure optimum weld results whilst reducing excessive gas usage too.