SelectAlloy 625-AP Close Window
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CLASSIFICATIONS: ENiCrMo3T1-1, ENiCrMo3T1-4 per AWS A5.34

SelectAlloy 625-AP is an all position, gas-shielded, flux cored electrode primarily used for welding alloys 625, 601, 802 and 9% nickel to themselves and to steel. It is also widely used for surfacing steel and for joining other nickel-based alloys to steel.

APPLICATIONS: SelectAlloy 625-AP, with its nickel-chromium-molybdenum weld deposit, makes it a smart choice for surfacing, producing a corrosion resistant deposit for harsh environments. This electrode is utilized to clad steel when exceptional corrosion resistant is required such as chloride-contaminated cooling water in heat exchangers as well as offshore and marine environments. SelectAlloy 625-AP is extensively used to join the 9% nickel steels utilized in LNG storage and conveyance equipment and join steel to nickel-base alloys.

DIAMETERS: .045", 1/16"

SHIELDING GAS: 100% CO2, 75-80% Ar/20-25% CO2, 30-40 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Excellent welder appeal.
  • Well suited for all position welding.
  • Provides shiny bead, free from slag with outstanding tie-up to base metal.
TYPICAL MECHANICAL PROPERTIES
 
75% Ar/
25% CO2
Ultimate Tensile Strength (psi) 117,000
Yield Strength (psi) 74,000
Percent Elongation 33
CVN (ft lb f) @ -320°F 70

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn Ni Cr Mo Fe Nb
75Ar/25CO2
.03 .15 Bal 20.70 8.70 0.6 3.70

TYPICAL WELDING PARAMETERS (Ar-25% CO2) *
  Optimum Range
Diam. Position Amps Volts WFS Amps Volts
.045" Flat 190 27 400 125-215 24-28
  Overhead 155 24 320 125-175 23-26
  Vertical Up 155 24 320 125-175 23-26
1/16" Flat 200 26 225 150-230 23-28
  Overhead 175 24 175 150-190 23-25
  Vertical Up 175 24 175 150-190 23-25


Use 1/2-5/8" Contact tip to work distance.
* For
CO2 shielding raise voltage by 1/2 - 1 volt.