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CLASSIFICATION: E80T1-Ni1C, E80T1-Ni1M per AWS A5.29, ASME SFA 5.29

Select 81-Ni1 is a gas-shielded electrode intended for single and multiple pass horizontal fillet and flat position welding of carbon and low alloy steels requiring a minimum tensile strength of 80,000 psi and good CVN toughness at subzero temperatures.

APPLICATIONS: Select 81-Ni1 is the ideal selection for welding steels combining moderate tensile strength and excellent CVN toughness, such as ASTM A572 Gr60, A302, A575, and A734. These steels are used in mining machinery, offshore platforms, shipbuilding and earthmoving equipment.

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

SHIELDING GAS: 100% CO2, 35-50 cfh

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Offers moderate tensile strength weldments.
  • Good subzero CVN values.
  • Rutile slag system provides good welder appeal and bead geometry.
TYPICAL MECHANICAL PROPERTIES (CO2)
Ultimate Tensile Strength (psi) 86,400
Yield Strength (psi) 73,700
Percent Elongation 27
CVN (ftlb f) @ -20° F 30

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn P S Si Ni
CO2
.05 1.10 .010 .010 .25 .98

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