Argon Technical grade gas cylinder 4.8 (99.998%). Known for its unique inerting properties. A welding gas meeting the requirements of I1 according to ISO14175, for TIG welding of all weldable metals and alloys and MIG welding of Aluminium and other reactive materials. Supplied in a 50 litre steel cylinder at 230 bar. - Argon Technical Grade Cylinder - 50 Litre - TIG ® MIG Welding - Air Products