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CLASSIFICATION: E81T1-K2M per AWS A5.29, ASME SFA 5.29

APPROVALS: ABS 4YSA, CWB E81T1-K2MJ-H4, DNV 4 YMS (All C25)

Select 812-K2 is intended for single and multiple pass welding of low alloy steels, in all positions, where moderate tensile strength and exceptional low temperature CVN values are required.

APPLICATIONS: Select 812-K2 is an excellent electrode for applications where all position capability, excellent mechanical properties and low diffusible hydrogen levels are required. This electrode is well suited to applications such as low temperature storage tanks, offshore drilling rigs, shipbuilding and construction machinery.

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

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

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Excellent CVN toughness values down to -75°F.
  • Positive, stable, easy to control arc.
  • Low spatter emission.
  • Slag freezes rapidly and offers complete coverage.

    TYPICAL MECHANICAL PROPERTIES
    75% Ar/25% CO2
    As Welded
    SR 3HR
    @ 1150°
    Ultimate Tensile Strength (psi) 92,000 91,000
    Yield Strength (psi) 84,000 78,900
    Percent Elongation 24 25
    CVN (ftlb f) @ -20° F 114  
                      @ -50° F   58
                      @ -60° F 62  
                      @ -75° F 59  

    TYPICAL DEPOSIT COMPOSITION
    Wt% C Mn P S Si Ni
    75 Ar/25 CO2
    .06 1.20 .010 .010 .22 1.60

    RECOMMENDED WELDING PARAMETERS
      Optimum Range
    Diam. Position Amps Volts WFS Amps Volts
    1/16" Flat 350 29 300 150-380 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
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