Bohler SAS 2-UP description: SAW wire/flux-combination for multi-pass welding of stainless steel grades like 1.4541 / 347. Smooth beads, easy slag removal without any slag residues and good welding characteristics even for fillet welds are very much appreciated by users. Suited for service temperatures from -196°C to +400°C. BOHLER BB 202 is a fluoride-basic agglomerated flux providing, a low flux consumption and a low hydrogen weld metal.