Select 910-B3L Close Window
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CLASSIFICATION: E91T1-B3LC per AWS A5.29, ASME SFA 5.29

Select 910-B3L is a low alloy steel electrode intended for single and multiple pass, all position welding of certain 2 1/4 percent chromium and 1 percent molybdenum steel plate and pipe, where lower carbon levels are required in the weld deposit.

APPLICATIONS: Select 910-B3L is well suited to weld thin-walled A335-P22 pipe for use in the as-welded condition or for applications where low hardness is necessary. These materials are used in the fabrication of boilers, heat exchangers and pressure vessels.

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

SHIELDING GAS: 100% CO2, 35-50 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Superb welder appeal and excellent mechanical properties.
  • Smooth arc transfer with low spatter and fast freezing slag.
  • Improved ductility and lower hardness than typical higher carbon grades.

    TYPICAL MECHANICAL PROPERTIES
     
    SR 1 Hr. at 1275° F
    CO2
    Ultimate Tensile Strength (psi) 94,200
    Yield Strength (psi) 81,400
    Percent Elongation 22

    TYPICAL DEPOSIT COMPOSITION
    Wt% C Mn P S Si Cr Mo
    CO2
    .03 .70 .010 .010 .30 2.20 1.03

    RECOMMENDED WELDING PARAMETERS
      Optimum Range
    Diam. Position Amps Volts WFS Amps Volts
    1/16" Flat 350 29 350 150-400 22-34
      Overhead 225 26 170 150-310 22-28
      Vertical up 225 25 170 150-280 22-27
    .052" Flat 300 28 440 100-330 19-32
      Overhead 200 26 245 150-310 21-28
      Vertical up 200 25 245 150-280 21-27
    .045" Flat 250 28 450 100-300 21-32
      Overhead 200 26 300 150-280 21-29
      Vertical up 200 25 300 100-230 21-28
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