Inomaxx® TIG (R1ArH2) weld process mixture is classified in group R1 according to ISO14175. The best gas mixture for TIG welding austenitic stainless steel. Contains 2% Hydrogen in Argon. Generally suitable for TIG & Plasma welding of austenitic stainless steels. Supplied in a 30 litre Integra® cylinder at 300 bar. Integra® cylinders are 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.