Bohler FOX SAS 4-A description: Rutile electrode, stabilised stainless steel. Preferably used for Ti or Nb stabilised 1.4571 / 1.4580 / 316Ti CrNiMo steel grades. BOHLER FOX SAS 4-A is noted for its superior welding characteristics and metallurgy. It can be used on AC or DC. Other characteristics include high current carrying capacity, minimum spatter formation, self releasing slag, smooth and clean weld profile, safety against formation of porosity due to moisture resistant coating and packaging into hermetically sealed tins. The fully alloyed core wire ensures the most reliable corrosion resistance. Resistant to intergranular corrosion up to +400C.