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CLASSIFICATIONS: E81T1-Ni2C/E81T1-Ni2M per AWS A5.29, ASME SFA 5.29, MIL-81T1-Ni2C and MIL-81T1-Ni2M per MIL-E-24403/1

APPROVALS: ABS 3YSA (CO2/C25), MIL-81T1-Ni2C and MIL-81T1-Ni2M

Select 810-Ni2 is an excellent selection for welding steels which require good CVN toughness and tensile strength in the range of 80,000-100,000 psi. Select 810-Ni2 is designed for single and multiple pass welding of carbon and certain low alloy steels in all positions.

APPLICATIONS: Select 810-Ni2 is a fine choice for welding steels such as ASTM A572, A575 and A734. Its combination of strength and CVN toughness makes Select 810-Ni2 ideal for applications such as offshore platform construction, shipbuilding, earthmoving and mining machinery.

DIAMETERS: .045", .052", 1/16", 5/64"

SHIELDING GAS: 100% CO2, 75-80% Ar/balance CO2, 35-50 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Excellent low temperature CVN toughness.
  • High welder appeal.
  • Very little spatter.
TYPICAL MECHANICAL PROPERTIES
75% Ar/
25% CO2
CO2
Ultimate Tensile Strength (psi) 90,000 87,000
Yield Strength (psi) 80,000 73,000
Percent Elongation 22 26
CVN (ftlb f) @ -40° F 40 50

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn P S Si Ni
75 Ar/25 CO2
.04 .90 .010 .010 .30 2.40
CO2
.05 .83 .010 .010 .29 2.40

RECOMMENDED WELDING PARAMETERS*
  Optimum Range
Diam. Position Amps Volts WFS Amps Volts
5/64" Flat 390 29 250 240-430 26-33
  Overhead 250 26 135 240-300 25-28
  Vertical up 250 25 135 240-290 24-26
1/16" Flat 350 29 300 150-400 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

* With CO2 shielding gas. For 75Ar/25CO2 decrease voltage by 1 to 1.5 volts.