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Lincoln Electric  |  SKU: ED034420

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

$9,000.00
UltraCore® 712C from Lincoln Electric is a versatile E71T-12 choice with consistently high impact toughness values.
AWS / Classification: E71T-12C-JH8, E71T1-C1A4-CS2-H8

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DETAILS

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

For tank and shipbuilding applications using straight CO2, UltraCore 712C is a versatile E71T-12 choice with consistently high impact toughness values — even with a notch offset of 2.5mm from weld centerline.

Features

  • Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 100% CO2 shielding gas
  • Premium arc performance and bead appearance
  • ProTech® foil bag packaging

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

For tank and shipbuilding applications using straight CO2, UltraCore 712C is a versatile E71T-12 choice with consistently high impact toughness values — even with a notch offset of 2.5mm from weld centerline.

Features

  • Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 100% CO2 shielding gas
  • Premium arc performance and bead appearance
  • ProTech® foil bag packaging

Includes
What's Included
  • (1) 50 lb Spool

Specifications
CONFORMANCE
CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.20 E71T-12C-JH8, E71T-1C-JH8, E71T-9C-JH8
AWS AWS A5.36 E71T1-C1A4-CS2-H8
ABS ABS - Part 2 3YSA H10
CWB CSA W48 E491T1-C1A4-CS1-H8 (E491T-9J-H8)
DNV-GL DNV - 2.9 III YMS H10
LR LR - Chapter 11 3YS H10
MECHANICAL PROPERTIES
Classification Shielding Gas Polarity Yield Strength @ 0.2% Offset, MPa (ksi) Tensile Strength, MPa (ksi) Elongation, % Charpy V-Notch, J (ft-lbs) @ -40°C (-40°F)
E71T-12C-JH8 Requirement 100% CO2 DC+ 400 (58) min. 480-620 (70-90) 22 min. 27 (20) min.
E71T-1C-JH8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T-9C-JH8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T1-C1A4-CS2-H8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
Typical Result, As-welded 100% CO2 DC+ 520 (75) 570-620 (82-89) 22 30-138 (22-102)
DEPOSIT COMPOSITION
Classification Shielding Gas Polarity %B %C %Cr %Cu %Mn %Ni %P %S %Si %V Diffusible Hydrogen, mL/100g Weld Metal
E71T-12C-JH8 Requirement 100% CO2 DC+ 0.12 max. 1.60 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T-1C-JH8 Requirement 100% CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T-9C-JH8 Requirement 100% CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T1-C1A4-CS2-H8 Requirement 100% CO2 DC+ 0.12 max. 1.60 max. 0.030 max. 0.030 max. 0.90 max. 8 max.
Typical Result 100% CO2 DC+ 0.0036-0.006 0.03-0.05 0.06 max. 0.06 max. 1.28-1.47 0.36-0.43 0.020 max. 0.012 max. 0.34-0.43 0.03 max. 2-5.1
TYPICAL OPERATING PROCEDURES
Diameter Shielding Gas Polarity CTWD, mm (in.)⁽¹⁾ Wire Feed Speed, m/min (in/min) Voltage, volts Approx. Current, amps Melt-off Rate, kg/hr (lb/hr) Deposition Rate, kg/hr (lb/hr) Efficiency, %
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 4.4 (175) 24-29 115 1.8 (3.9) 1.5 (3.4) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 6.4 (250) 25-30 140 2.5 (5.6) 2.2 (4.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 7.6 (300) 26-31 155 3.1 (6.8) 2.6 (5.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 8.9 (350) 26-31 170 3.6 (7.9) 3.1 (6.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 10.2 (400) 26-31 185 4.1 (9.0) 3.5 (7.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 11.4 (450) 27-32 200 4.6 (10.1) 4.0 (8.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 12.7 (500) 27-32 215 5.1 (11.3) 4.4 (9.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 14.0 (550) 28-33 230 5.6 (12.4) 4.9 (10.8) 85-88
0.045 in (1.1 mm) As-Welded with 100% CO2 DC+ 25 (1) 15.2 (600) 28-33 245 6.1 (13.5) 5.3 (11.7) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 3.8 (150) 24-29 140 2.1 (4.7) 1.7 (3.8) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 5.1 (200) 25-30 160 2.9 (6.3) 2.4 (5.2) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 6.4 (250) 26-31 180 3.5 (7.8) 3.0 (6.5) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 7.6 (300) 26-31 205 4.3 (9.4) 3.6 (7.9) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 8.9 (350) 27-32 225 5.0 (11.0) 4.2 (9.2) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 9.5 (375) 27-32 235 5.3 (11.7) 4.5 (9.9) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 10.8 (425) 27-32 255 6.0 (13.3) 5.1 (11.2) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 12.1 (475) 28-33 275 6.8 (14.9) 5.7 (12.6) 85-88
0.052 in (1.3 mm) As-Welded with 100% CO2 DC+ 25 (1) 12.7 (500) 28-33 290 7.1 (15.6) 6.0 (13.3) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 3.8 (150) 23-28 200 2.9 (6.4) 2.4 (5.3) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 4.4 (175) 24-29 215 3.4 (7.5) 2.9 (6.3) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 5.1 (200) 24-29 230 3.9 (8.5) 3.3 (7.2) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 5.7 (225) 24-29 245 4.4 (9.6) 3.7 (8.1) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 6.4 (250) 25-30 255 4.8 (10.6) 4.1 (9.1) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 7.6 (300) 25-30 285 5.8 (12.7) 4.9 (10.9) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 8.3 (325) 26-31 300 6.3 (13.8) 5.4 (11.9) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 8.9 (350) 26-31 310 6.7 (14.8) 5.8 (12.8) 85-88
1/16 in (1.6 mm) As-Welded with 100% CO2 DC+ 25 (1) 10.2 (400) 27-32 340 7.7 (16.9) 6.7 (14.7) 85-88
LECO Diameter 0.052 in (1.3 mm)
LECO Package 50 lb Spool
Diameter (in) 0.052

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

For tank and shipbuilding applications using straight CO2, UltraCore 712C is a versatile E71T-12 choice with consistently high impact toughness values — even with a notch offset of 2.5mm from weld centerline.

Features

  • Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 100% CO2 shielding gas
  • Premium arc performance and bead appearance
  • ProTech® foil bag packaging

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

For tank and shipbuilding applications using straight CO2, UltraCore 712C is a versatile E71T-12 choice with consistently high impact toughness values — even with a notch offset of 2.5mm from weld centerline.

Features

  • Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft·lbf) at -40°C (-40°F)
  • Designed for welding with 100% CO2 shielding gas
  • Premium arc performance and bead appearance
  • ProTech® foil bag packaging

The ultimate welding setup

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Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool for high-deposition welding, excellent arc stability, and heavy-duty structural applications.
Lincoln Electric

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

$9,000.00

Lincoln ED034420 UltraCore 712C flux-cored FCAW-G welding wire, 0.052 inch diameter, 50 lb spool.

For tank and shipbuilding applications using straight CO2, UltraCore 712C is a versatile E71T-12 choice with consistently high impact toughness values — even with a notch offset of 2.5mm from weld centerline.

Features

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