Hobart 18-1 H4
AWS A5.1: E7018-1 H4
Hobart 18-1 H4 is a basic-coated electrode designed for the welding of 490 N/mm2 grade steel. It offers an excellent welder appeal as well as an excellent impact toughness at low temperatures. Hobart 18-1 H4 also comes with a low diffusible hydrogen content of less than 4ml/100g.