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CLASSIFICATIONS: E81T1-GM per AWS A5.29, E81T1-M21A6-Ni1 and E71T1-M21P6-Ni1 per AWS A5.36

Select 8000-SR is a flux cored, low alloy steel electrode intended for single and multiple-pass welding of high strength, low alloy steels where excellent mechanical properties are required in both the as-welded and stress relieved conditions.

APPLICATIONS: Select 8000-SR is designed to weld steels requiring a minimum of 75,000 psi tensile strength and very good low temperature toughness. Unlike conventional flux cored wires, Select 8000-SR maintains good charpy v-notch values after long term stress relief while avoiding excessive hardening. Typical applications include vessels and piping.

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

SHIELDING GAS: 75-80% Ar/balance CO2, 40-55 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Very positive, smooth and stable arc transfer with good arc drive.
  • Low spatter emission.
  • Fast freezing slag removes easily.
  • Deep penetrating characteristics.
TYPICAL MECHANICAL PROPERTIES
 
As-Welded
SR 8 Hr. @ 1150°F
Ultimate Tensile Strength (psi) 82,000 77,000
Yield Strength (psi) 71,000 66,000
Percent Elongation 33 34
CVN (ftlb f) @ -40° F 82 101
                  @ -60° F 69 70

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn P S Si Ni Mo
.06 1.40 .009 .007 .27 .94 .16

TYPICAL WELDING PARAMETERS (Ar-25% CO2 ) *
  Optimum Range
Diam. Position Amps Volts WFS Amps Volts
1/16" Flat 350 28 350 150-400 22-33
  Overhead 225 25 180 150-310 22-28
  Vertical up 225 24 180 150-280 22-27
.052" Flat 300 27 440 100-330 19-31
  Overhead 200 25 245 150-310 21-28
  Vertical up 200 24 245 150-280 21-27
.045" Flat 250 27 450 100-300 21-31
  Overhead 190 25 305 150-280 21-29
  Vertical up 190 24 305 100-230 21-28

* For Ar-10% CO2 reduce the voltage by 1/2 -1 volt.