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CLASSIFICATION: EC2594 per AWS A5.22. ASME SFA 5.22

SelectAlloy 2594-C is a metal cored electrode having a nominal composition of 26% chromium, 9% nickel, 3% molybdenum, 0.6% tungsten and 0.25% nitrogen. The Pitting Resistance Equivalent is equal or greater than 40, making it an excellent choice for use in aqueous environments containing chlorides.

APPLICATIONS: SelectAlloy 2594-C is designed for welding duplex (2500 family) and super-duplex (wrought UNS S32750 and S32760 and cast UNS J93380 and J93404) materials in the chemical and fertilizer industries, energy generation, flue gas desulphurization and for many offshore applications including piping systems, pumps, valves and heat exchangers.

DIAMETERS: .045", 1/16"

SHIELDING GASES: 98% Ar/2% O2

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Operates with a smooth, spray arc transfer.
  • Produces little or no slag and virtually no spatter which minimizes cleanup.
  • Offers higher deposition rates and more controlled penetration than the equivalent solid electrode.
  • Operates at higher travel speeds.
  • Handles poor fitup.
TYPICAL MECHANICAL PROPERTIES
  98% Ar/
2% CO2
Ultimate Tensile Strength (psi) 123,000
Yield Strength (psi) 90,000
Percent Elongation 29

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn Si Ni Cr Mo N W
98Ar/2O2 .02 1.90 .60 8.90 25.80 3.10 .25 .60
Ferrite Number (WRC, 1992) - 49
PREN - 42

Typical Welding Parameters (98% Ar-2% O2)**
Diameter WFS (ipm) Amperage Voltage ESO (in.) Dep. Rate (lbs/hr)
.045" 250 180 21 1/2-5/8" 7.1
.045" 400 240 23 1/2-5/8" 11.3
.045" 500 280 25 1/2-5/8" 14.1
.045" 650 300 28 1/2-5/8" 18.4
 
1/16" 150 190 24 3/4-1" 7.7
1/16" 250 280 25 3/4-1" 12.8
1/16" 350 385 26 3/4-1" 17.9
1/16" 450 490 32 3/4-1" 23.1

** Optimum conditions are in boldface type.