Select EM12KS

Carbon Steel / Submerged Arc / Flux Shielded

Resources

Features

  • Intended for single and multiple pass welding of carbon and certain low alloy steels, and can be substituted anywhere that a solid EM12K electrode is used.
  • Produces a weld deposit chemistry similar to EM12K solid wire electrodes.
  • Higher deposition rates than solid wire when run at the same current level.
  • Exhibits a broader and shallower bead profile than when using solid wire, reducing the tendency for burn through.
  • Capable of running directly over root passes with proper procedure – eliminating requirement for a hot pass.
  • Easy slag removal – reduces post weld cleanup time.
  • Arcflux BF-10MW is the recommended flux, although other active and neutral fluxes can be used in place of this.

Standard Diameters

in (mm)
  • 5/64 (2.0)
  • 3/32 (2.4)
  • 1/8 (3.2)
  • 5/32 (4.0)

Welding Positions

Flat and Horizontal

Shielding Gas

  • Arcflux BF-10MW
  • Arcflux BF-3.5
  • Arcflux BF-1
  • Arcflux BF-5.1

    Polarity

    Direct Current Electrode Positive (DCEP)

    Conformances

  • ASME SFA 5.17
    • EC1
    • F7A2-EC1-H8 (ARCFLUX BF-1)
    • F7A6-EC1 (ARCFLUX BF 5.1)
    • F7A6-EC1-H8 (ARCFLUX BF 3.5)
    • F7A8-EC1-H8 (ARCFLUX BF-10 MW)
  • AWS A5.17
    • EC1
    • F7A2-EC1-H8 (ARCFLUX BF-1)
    • F7A6-EC1 (ARCFLUX BF 5.1)
    • F7A6-EC1-H8 (ARCFLUX BF 3.5)
    • F7A8-EC1 (ARCFLUX BF-10 MW)
  • AWS D1.8
    • 3/32 in (2.4 mm), (ARCFLUX BF 3.5)
    • 3/32 in (2.4 mm), (ARCFLUX BF-10 MW)
    • 5/32 in (4.0 mm), (ARCFLUX BF 3.5)
    • 5/32 in (4.0 mm), (ARCFLUX BF 3.5)
    • Approvals
    Agency Approval Flux Diameter(s)
    in (mm)
    ABS 4YM H5 ARCFLUX BF-10 MW 1/16 (1.6) – 3/16 (4.8)
    CWB E49A5-EC1-H8 ARCFLUX BF 3.5 3/32 (2.4) – 3/16 (4.8)
    CWB F49A3-EC1-H8 ARCFLUX BF-1 5/64 (2.0) – 5/32 (4.0)
    CWB F49A5-EC1-H8 ARCFLUX BF-10 MW 5/64 (2.0) – 5/32 (4.0)
    TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Flux C Cu Mn P S Si
    ARCFLUX BF 3.5 0.08 0.07 1.72 0.021 0.011 0.58
    ARCFLUX BF 5.1 0.08 0.04 1.31 0.022 0.015 0.41
    ARCFLUX BF-1 0.07 0.10 1.39 0.026 0.019 0.66
    ARCFLUX BF-10 MW 0.09 0.08 1.30 0.014 0.008 0.36
    Typical Mechanical Properties
    Flux Tensile Strength
    ksi (MPa)    		 Yield Strength
    ksi (MPa)    		 Elongation
    (%)    		 WeldCondition PWHTTemp Charpy V-Notch
    -20 °F ft⋅lb (-29 °C J)    		 Charpy V-Notch
    -60 °F ft⋅lb (-51 °C J)    		 Charpy V-Notch
    -80 °F ft⋅lb (-62 °C J)
    ARCFLUX BF 3.5 87 (600) 71 (490) 24 As-Welded – – 59 (80) –
    ARCFLUX BF 5.1 77 (531) 62 (428) 31 As-Welded – – 78 (106) –
    ARCFLUX BF-1 84 (579) 70 (483) 24 As-Welded – 35 (47) – –
    ARCFLUX BF-10 MW 79 (545) 68 (469) 32 As-Welded – 170 (231) – 122 (165)
    Recomended Welding Parameters
    Diameter
    in (mm)    		 Flux Position Wire Feed Speed
    in/min (m/min)    		 Amps Volts Contact Tip to Work Distance
    in (mm)
    5/64 (2.0) ARCFLUX BF-10 MW Flat & Horizontal 100 (2.5) 200 27.0 3/4 – 1 (19 – 25)
    5/64 (2.0) ARCFLUX BF-10 MW Flat & Horizontal 180 (4.6) 300 27.5 3/4 – 1 (19 – 25)
    5/64 (2.0) ARCFLUX BF-10 MW Flat & Horizontal 260 (6.6) 400 28.0 3/4 – 1 (19 – 25)
    3/32 (2.4) ARCFLUX BF-10 MW Flat & Horizontal 60 (1.5) 250 27.5 1 – 1 1/4 (25 – 32)
    3/32 (2.4) ARCFLUX BF-10 MW Flat & Horizontal 85 (2.2) 350 28.0 1 – 1 1/4 (25 – 32)
    3/32 (2.4) ARCFLUX BF-10 MW Flat & Horizontal 130 (3.3) 450 29.0 1 – 1 1/4 (25 – 32)
    1/8 (3.2) ARCFLUX BF-10 MW Flat & Horizontal 55 (1.4) 350 28.5 1 – 1 1/4 (25 – 32)
    1/8 (3.2) ARCFLUX BF-10 MW Flat & Horizontal 75 (1.9) 450 29.5 1 – 1 1/4 (25 – 32)
    1/8 (3.2) ARCFLUX BF-10 MW Flat & Horizontal 100 (2.5) 550 30.5 1 – 1 1/4 (25 – 32)
    5/32 (4.0) ARCFLUX BF-10 MW Flat & Horizontal 50 (1.3) 450 30.0 1 – 1 1/4 (25 – 32)
    5/32 (4.0) ARCFLUX BF-10 MW Flat & Horizontal 65 (1.7) 550 31.0 1 – 1 1/4 (25 – 32)
    5/32 (4.0) ARCFLUX BF-10 MW Flat & Horizontal 80 (2.0) 650 32.0 1 – 1 1/4 (25 – 32)

    Packaging (lbs (kg))

    33 (15) Spools, 60 (27.2) Coils, 500 (226.8) Round Drum, 800 (362.9) Hex Drum, 900 (408.2) Hex Drum

    *Some packaging options may not be available depending on diameter and product. Special package options may be available upon request.