AWS A5.17 F7A2 EM12K welding fulx xiang welding  is an agglomerated aluminates basic flux, with little weld metal alloy pick-up of Mn and Si. Suitable for welding non-and low alloy steels with single and multiple wires application. Designed for two-run or multiple layers with both AC and DC technique. Has excellent slag detachability and good operation performance. Good mechanical properties at low temperatures can be achieved if it is combined with appropriate wire. It is suitable to be applied in fouowing industries.
Shipbuilding
Boiler and Pressure Vessel Pipemiii up to API-5L-X70 Low and High Tensile/Strength Steel Structural Fabrication Bridge Fabrication

AWS A5.17 F7A2 EM12K

EN ISO14171-A S42 3 AB S2Si

Characteristics and Application

Typical chemical Composition of Weld Metal (%)

Welding Positions:

Notes on usage:

1. The flux must be re-dried at a temperature of 300—350℃ for 1—2hr holding time when it is affected by moisture pick-up.
2. Adding proper quantity of new flux with the used one to maintain good quality of weld metal.

Mechanical Properties 

Welding Flux

Yield strength 460Mpa Tensile Strenght 530MPa Elongation 30% Charpy V-Notch -40℃ 40J

C 0.06 Mn 1.7 Si 0.4 P 0.03 S 0.01