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CLASSIFICATION: E70C-6M per AWS A5.18, ASME SFA 5.18

APPROVALS:
     ABS 3SA, 3YSA

     CWB E491C-6, 6M-H4 (CO2/C5)

Select 70C-6LS is a carbon steel, gas-shielded, composite metal cored electrode which produces substantially fewer slag islands than typical metal cored wires. Intended for single and multiple pass welding of carbon and certain low alloy steels, Select 70C-6LS is utilized where a minimum tensile strength of 70,000 psi is required.

APPLICATIONS: Select 70C-6LS is well suited to applications where better bead appearance and less postweld cleanup are desired. The absence of slag and spatter facilitates painting after welding. It can be used to weld sheet metal and thin plate and pipe. Typical applications would be thin walled tanks, certain structural steel and earthmoving equipment.

DIAMETERS: .035", .045", .052", 1/16"

SHIELDING GAS: 75-95% Ar/balance CO2, 35-50 cfh

WELDING POSITIONS: All Positions

CHARACTERISTICS:

  • Minimizes “slag islands”, reducing cleanup time
  • Outstanding weld bead appearance with excellent tie-in.
  • Smooth spray arc transfer with virtually no spatter.
  • Better sidewall fusion.
  • Greater tolerance of mill scale and rust.
  • Smaller diameter electrodes can be used for all position welding by utilizing short circuit (short arc) or pulse arc transfer.

    TYPICAL MECHANICAL PROPERTIES
     
    75% Ar/ 25% CO2
    Ultimate Tensile Strength (psi) 81,500
    Yield Strength (psi) 64,500
    Percent Elongation 27
    CVN (ftlb f) @ -20° F 32

    TYPICAL DEPOSIT COMPOSITION
    Wt%
    C
    Mn
    P
    S
    Si
    75 Ar/25 CO2
    .05 1.54 .007 .010 .60

    TYPICAL WELDING PARAMETERS: Metal Cored - Argon/Carbon Dioxide
      Operating Range Optimum
    Diam. Amps
    (DCEP)
    WFS
    (in/min)
    Volts ESO Amps WFS Volts
    .035" 160-250 350-750 24-35 1/2-3/4" 200 550 29-30
    .045" 180-330 240-600 25-33 1/2-1" 255 410 29-30
    .052" 220-460 220-620 25-35 1/2-1" 300 350 29-30
    1/16" 240-520 175-500 26-37 3/4-1 1/4" 360 300 29-30

    TYPICAL SHORT ARC PARAMETERS
    (for out of position welding)
    Diam. Amps WFS Volts
    .035" 100 145 15-16
    .045" 140 150 16-17
    .052" 125 120 17-18

    * Welding parameters are for 75% Ar/25% CO2. At higher levels of argon the voltage should be gradually decreased; 1/2-1 volt for 85% Ar/15% CO2, 1-1 1/2 volts for 90% Ar/10% CO2 and 1-2 volts for 95% Ar/5% CO2.

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