AWS A5.22 E2594T1-1
2594 T1-1 all-position superduplex stainless steel flux cored electrodes aree quivalent to Zeron 100 (UNS S32760) used to weld 25%Cr, 9%Ni, 4%Mo, Cu duplex stainless steels.
Typical application is Paper & Pulp, chemical plant/shipbuilding as well as sea water & nuclear plant industries and base metals such as S32900, 2507 (UNS S32750), S32550, S31260(DP-3), S32750, J93380 or other proprietary duplex stainless steels. It has rutile type of flux with asmooth running arc low spatter generation, easy slag removal and good weld soundnessthat deposits very high tensile strength, with resistance to stress, corrosion, cracking and pitting.It may also be used to weld carbon and low alloy steels to duplex as well as root runs on UNS S32205 & J92250. Welding Shielding gas 100% CO2 or Ar+20~25% CO2 Weld metal should have very good resistance to stress corrosion cracking and pitting with an austenite & 40-55 % ferrite matrix.
TYPICAL WIRE CHEMISTRY (%)
Typical mechanical properties of weld metal (C02 shielding gas)
Yield Strength (psi)
Ultimate Tensile Strength (psi)
Elongation in 2" (%)