188F agglomerated semi-basic flux for SAW

188F is a semi-basic agglomerated flux for carbon and low alloy steel welding, in single or multipass technique, and single or multiwire applications.
The weld metal, produced in combination with corresponding wire electrodes, offers good mechanical properties also at low temperature.
Good slag removal in fillet and groove welds.
Particularly suitable for longitudinal and spiral welding of pipes, also in combination with wire Mo, Ni, Ti, B alloyed.
Welding current: DC or AC, in single or multi-wire up to 1200 A. per wire.
Applications:
Boiler works, piping mills, shipbuilding, structural steel works, off-shore, tanks and pressure vessels.
Available in 25 kgs bag

Flux Main Chemical Composition:
CaO+CaF2+MgO=39, MnO+FeO=9, SiO2=20, Al2O3+TiO2+ZrO2=30
Basicity Index: 1.3 ca.

Filo S1
Typical Chemical Properties (As Welded)
C 0.03-0.06, Mn 0.6-1.0, Si 0.10-0.50, Cu <0.35, S 0.020, P 0.025
Typical Mechanical Properties
Tensile Strength AW >440 MPa, SR >420 MPa
Yield Strength AW >350 MPa, SR >330 MPa
Elongation in 2" AW >22%, SR >22%
CVN temp. -20°C AW >80 J, SR >80 J
CVN temp.-30°C AW >27 J, SR >27 J
(AW= As Welded, SR= Stress Relieved at 620°C x 1h)

Filo S2
Typical Chemical Properties (As Welded)
C 0.03-0.05, Mn 1.00-1.60, Si 0.20-0.60, Cu <0.35, S 0.020, P 0.025
Typical Mechanical Properties
Tensile Strength AW >510 MPa, SR >490 MPa
Yield Strength AW >420 MPa, SR >400 MPa
Elongation in 2" AW >22%, SR >22%
CVN temp. -20°C AW >100 J, SR >110 J
CVN temp. -40°C AW >27 J, SR >40 J
(AW= As Welded, SR= Stress Relieved at 620°C x 1h)

Filo S3Si
Typical Chemical Properties (As Welded)
C 0.03-0.05, Mn 1.30-1.80, Si 0.20-0.40, Cu <0.35, S 0.020, P 0.025
Typical Mechanical Properties
Tensile Strength AW >530 MPa - SR >510 MPa
Yield Strength AW >440 MPa - SR >420 MPa
Elongation in 2" AW >22% - SR >22%
CVN temp. -40°C AW>60 J - SR >60 J
CVN temp. -51°C AW>27 J - SR >27 J
(AW= As Welded, SR= Stress Relieved at 620°C x 1h)

AWS EA2 wire
Typical Chemical Properties (As Welded)
C 0.04-0.08, Mn 1.10-1.40, Si 0.20-0.60, Mo 0.50, Cu <0.35, S 0.020, P 0.025
Typical Mechanical Properties
Tensile Strength AW >570 MPa - SR >590 MPa
Yield Strength AW >490 MPa - SR >400 MPa
Elongation in 2" AW >20% - SR >20%
CVN temp. -20°C AW>90 J - SR >50 J
CVN temp. -30°C AW>27 J - SR >27 J
(AW= As Welded, SR= Stress Relieved at 620°C x 1h)

AWS EA3 wire
Typical Chemical Properties (As Welded)
C 0.04-0.08, Mn 1.70-2.00, Si 0.20-0.60, Mo 0.50 Cu <0.35, S 0.020, P 0.025
Typical Mechanical Properties (As Welded)
Tensile Strength >630 MPa
Yield Strength >540 MPa
Elongation in 2" >19 %
CVN temp. -20°C >90 J
CVN temp. -30°C >50 J

AWS EG-G wire
Typical Chemical Properties (As Welded)
C 0.03-0.06, Mn 1.20-1.60, Si 0.30-0.70, Cu 0.4, Ni 0.75, Cr 0.30, S 0.020, P 0.025
Typical Mechanical Properties (As Welded)
Tensile Strength >510 MPa
Yield Strength >420 MPa
Elongation in 2" >22 %
CVN temp.-30°C >27 J

Re-baking performed at 350°C for two hours in a vented oven, to obtain diffusible hydrogen 5 ml/100 gr max