AWF-50

Classification:

F7A2 – EM12K
F7A4 – EM12K
F7A2 – EM13K
F6A2 – EL12

Description and Applications

AWF-50 is an agglomerated aluminum-basic flux with a number of metallurgical behaviors which can be used in welding of low carbon, low alloy mild steel. Low silicon pick-up and a slight manganese pick-up are typical and therefore can be used with a low Mn electrode. Slag removal is excellent for butt and fillet (horizontal) welding at high speed along with a smooth weld bead and low porosities. The amount of diffusible hydrogen and oxygen deposited in the weld metal is less than 5ml/100g. Therefore the weld has excellent toughness at low temperatures exceeding 20ft-lb at -40F,-40C with EM12K wire.

Typical applications include: Pipe and other double ended application, storage tanks, AASHTO fracture critical application, and single and multiple Pass, steel with heavy scale or rust, fillet and butt welds.

TYPICAL COMPOSITION OF FLUX BY WEIGHT (Basicity Index 0.8)

SiO2+TiO2 MnO+Al2O3 CaO+Mg0 CaF2
20% 35% 20% 15%

TYPICAL MECHANICAL PROPERTIES (as welded)

YIELD (ksi) TENSILE (ksi) ELONGATION (%) CHARPY (ft-lbs @ -40°C)
≥58 79-95 ≥22% ≥34