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CLASSIFICATIONS:E91T1-K2CJ, E91T1-K2MJ per AWS A5.29, ASME SFA 5.29

This gas-shielded, flux cored electrode is intended for the welding of certain low alloy steels in all positions. The wire produces weld metal with improved low temperature toughness when compared to other electrodes of the same class.

APPLICATIONS:Select 920-K2 represents an outstanding choice when requirements necessitate 90,000 psi tensile strength and good subzero CVN toughness values. This electrode is utilized to weld HY-80, HY-100, ASTM A710, A514 and other similar high strength steels. These steels are used in the fabrication of naval vessels, offshore platforms and leg assemblies, earthmoving machinery and specialized structural applications.

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

SHIELDING GAS: 100% CO2, 75-80% Ar/balance CO2, 35-50 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Exhibits a spray-like arc transfer with very little spatter.
  • Provides a fast freezing slag which facilitates all position welding.
  • Slag volume is moderate and easily removed.
  • Produces good subzero CVN toughness.

    TYPICAL MECHANICAL PROPERTIES
     
    75% Ar/
    25%
    CO2
    CO2
    Ultimate Tensile Strength (psi) 101,000 95,500
    Yield Strength (psi) 89,000 87,000
    Percent Elongation 23 22
    CVN (ftlb f) @ -40° F 78 65
    CVN (ftlb f) @ -75° F 51 46

    TYPICAL DEPOSIT COMPOSITION
    Wt% C Mn P S Si Ni
    75 Ar/25 CO2
    .04 1.60 .010 .010 .25 1.90
    CO2
    .05 1.50 .010 .010 .21 1.90

    RECOMMENDED WELDING PARAMETERS*
      Optimum Range
    Diam. Position Amps Volts WFS Amps Volts
    1/16" Flat 350 29 300 150-400 22-34
      Overhead 225 26 160 150-310 22-28
      Vertical up 225 25 160 150-280 22-27
    .052" Flat 300 28 360 100-330 19-32
      Overhead 225 26 245 150-310 21-28
      Vertical up 225 25 245 150-280 21-27
    .045" Flat 250 28 282 100-300 21-32
      Overhead 200 26 265 150-280 21-29
      Vertical up 200 25 265 100-230 21-28

    * With CO2 shielding gas. For 75Ar/25CO2 decrease voltage by 1 to 1.5 volts.
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