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CLASSIFICATION: E80T1-B2C per AWS A5.29, ASME SFA 5.29

Select 81-B2 is a low alloy steel electrode for flux cored arc welding. This electrode is designed for single and multiple pass welding in the flat and horizontal positions of certain chromium-molybdenum steel and pipe grades, where 1 1/4% Cr and 1/2% Mo are required in the weld deposit.

APPLICATIONS: Select 81-B2 is an excellent selection to weld steels subject to high temperature service such as ASTM A387, Gr. 11 plate and A335 P11 pipe. These materials are employed in the fabrication of boilers, heat exchangers and pressure vessels.

DIAMETERS: .052", 1/16", 5/64", 3/32"

SHIELDING GAS: 100% CO2, 35-50 cfh

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Promotes spray-like arc transfer with very low spatter.
  • Bead profile exhibits minimum of convexity.
  • Resists creep and maintains strength at elevated temperatures.

    TYPICAL MECHANICAL PROPERTIES
      SR 1 Hr. at 1275° F
    CO2
    Ultimate Tensile Strength (psi) 91,000
    Yield Strength (psi) 81,500
    Percent Elongation 20

    TYPICAL DEPOSIT COMPOSITION
    Wt% C Mn P S Si Cr Mo
    CO2
    .06 .63 .010 .010 .57 1.12 .50

    RECOMMENDED WELDING PARAMETERS
      Operating Range Optimum
    Diam. Amps Volts WFS Amps Volts
    .052" 275 28 400 150-375 20-32
    1/16" 350 29 300 150-400 22-34
    5/64" 390 29 250 280-430 26-33
    3/32" 450 31 210 275-550 26-34
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