UltraCore 712A80 is Lincoln's best running E71T-12 product because of its superior arc characteristics and high impacts in a variety of applications, including offshore, tank and pressure vessel fabrication. Robust impact toughness values even with a notch offset of 2.5 mm from weld centerline makes this a favorite for designers who need consistently high impacts weld after weld. Tensiles will not exceed 90 ksi to help reduce cracking tendency, and the new ProTech foil bag packaging system protects the wire from harmful moisture contamination
- Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft.-lbf) at -40 deg C
- Designed for welding with 75 - 80% argon/balance Co2 shielding gas
- Premium arc performance and bead appearance
- Protech packaging system
- All welding positions
- 40 - 50 cfh gas flow
- Mixed shielding gas
- 1.8 - 4.1 kg/hr (all position), 4.7 - 5.4 kg/hr (flat and horizontal) melt-off rate
- 86 - 88% efficiency
- 4.4 - 10.2 m/min (all position), 11.4 - 13.3 m/min (flat and horizontal) wire feed speed
- 20 - 29 volt (all position), 25 - 33 volt (flat and horizontal)
- 1.6 - 3.6 kg/hr (all position), 4.1 - 4.7 kg/hr (flat and horizontal) deposition rate
- 4 - 8mL/100 g diffusible hydrogen content
Lincoln UltraCore 712A80 ED031675 Mild Steel Flux-Cored Wire, Gas Shielded, Diameter: .045 Inch, Current Type: DC+, Amperage: 140 - 230 amp (All Position), 245 - 280 amp (Flat And Horizontal), Package: 33 lb Fiber Spool, AWS Class: AWS A5.20/A5.20M: 2005 - E71T-1M-JH8, E71T-9M-JH8, E71T-12M-JH8, Tensile Strength: 82 - 88 ksi (As Welded), Yield Strength: 73 - 80 ksi (As Welded), Elongation in 2" (%): 25 - 27% (As Welded), Charpy V-Notch: 166 - 186 J At -18 deg C, Welding Process: FCAW (Flux Core), Weld Metal Composition: 0.03 - 0.04% Carbon (C), 1.40 - 1.53% Manganese (Mn), 0.31 - 0.36% Silicon (Si), 0.01% Sulphur (S), 0.01% Phosphorus (P), 0.32 - 0.38% Nickel (Ni)
