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F7A4-EM12K SAW Flux/Wire Combination for High Tensile Steels (CHW-S12/CHF101)

CHF101 is fluoride-basic sintered flux and its basicity is about 1.8. The weld metal of this flux/wire combination shows fine appearance and it has satisfactory low temperature toughness. It is suitable to weld structures made by equivalent tensile strength mild steels or low alloy steels, such as ship structures, boilers, pressure vessels, as well as LPG cylinders.

Type of Flux: Agglomerated (sintered)

Type of Current: DCEP or AC

Notice:

  • To avoid rust the wire must be kept in dry condition and keep the package in good condition also before welding.
  • The flux should be re-baked at 300℃ – 350℃ for 1.5 – 2 hours before use.
  • The surfaces to be welded must be cleaned away impurities of oil contamination, rust, moisture and so on.
  • The welding conditions mentioned above for reference only and it is better to do a welding procedure qualification according to project before put it into formal welding.

F7A4-EM12K Chemical Composition (%)

 CMnSiSPCrNiCu
CHW-S12 Welding Wire (EM12K)0.0930.0980.230.0070.0100.0120.020.065
Deposited Metal0.0521.250.490.0090.0180.0090.0120.05

Mechanical Properties of Deposited Metal (AW)

 Tensile Strength Rm (MPa)Yield Strength ReH (MPa)Elongation A5 (%)-30℃ Impact Value (J)
Standard480-660≥400≥22≥27
Typical52543032100
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