Flux type: Calcium-Silicate
ISO 14174: S A CS 1 75 AC
(EN 760: SA CS 1 75 AC)
Agglomerated, semi-basic, Calcium-Silicate flux with Manganese support
for SA-overlay welding and shape-forming using single or multiwire
(TWIN-ARC) processes. BF 8.1 is particularly designed for the repair of
worn pistons for large ship diesel engines.
The weld bead exhibits a flat smooth surface with good wetting and self-lifting slag detachability without residuals even at high intermediate welding temperatures above 300 °C. Stable chemical flux reactions and constant operating characteristics over a wide current range, also when welding AC, are advantages of this flux. Low consumption as well as low humidity are additional features of BF 8.1 together with low sensitivity to arc-blow and high resistance to porosity.
BF 8.1 is to be welded DC (+ or –) or AC in combination with non-alloyed
and low-alloyed wires for overlay and build-up welding of
heat-treatable, low-alloy steels which require preheat and interpass
temperatures above 300 °C up to 500 °C.
Especially applied for recondition welding / form-welding of worn piston ring grooves and the surface of piston crowns.
Characteristic chemical constituents
Agglomerated Welding Flux BF 8.1
- Brand: BAVARIA SCHWEISSTECHNIK
- Product Code:Flux BF 8.1
- Availability:In Stock