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UltraCore, 33 LB fiber spool

Diameters / Packaging

Diameters
 33 lb Spool
 50 lb Spool
0.045 in (1.1 mm) ED031669
0.052 in (1.3 mm) ED031670
1/16 in (1.6 mm) ED031671 ED031846

UltraCore® 71A75 Dual Flux-cored (FCAW-G) Wire

Flux-Cored Gas-Shielded (FCAW-G) | ED031670

CLASSIFICATIONS:
E71T-9C-H8
E71T-9M-H8
E71T1-C1A2-CS1-H8
E71T1-M21A2-CS1-H8

UltraCore® 71A75 Dual from Lincoln Electric is a general purpose wire that gives you the flexibility to use either straight CO2 or 75% Argon/25% CO2 gas.

Diameter

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  • 0.045 in (1.1 mm)
  • 0.052 in (1.3 mm)
  • 1/16 in (1.6 mm)

Package

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  • 33 lb Spool

DETAILS

A general purpose wire that gives you the flexibility to use either straight CO2 or 75% Argon/25% CO2 gas. It delivers a stable arc, low spatter, and a smooth bead appearance for general fabrication applications.

Features

  • Fast freezing slag for out-of-position welding
  • Designed for welding with either 100% CO2 or 75% Argon/25% CO2 shielding gases
  • Premium arc performance and bead appearance
  • ProTech® foil bag packaging
  • Available to meet Buy America. Choose a Buy America MTS product from the list of Available Types or contact a Lincoln Electric representative

Service Information

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BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.20 E71T-1C-H8, E71T-1M-H8, E71T-9C-H8, E71T-9M-H8
AWS AWS A5.36 E71T1-C1A2-CS1-H8, E71T1-M21A2-CS1-H8
CWB CSA W48 E491T1-C1A3-CS1-H8 (E491T-9-H8), E491T1-GA3-CS1-H8 (E491T-9M-H8), E491T1-M21A3-CS1-H8 (E491T-9M-H8)

MECHANICAL PROPERTIES

Classification Shielding Gas Polarity Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
% 		Charpy V-Notch
J (ft-lbs) @ -20°C (0°F) 		Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F)
E71T-1C-H8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T-1M-H8 Requirement 75-80% Ar, balance CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T-9C-H8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T-9M-H8 Requirement 75-80% Ar, balance CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T1-C1A2-CS1-H8 Requirement 100% CO2 DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
E71T1-M21A2-CS1-H8 Requirement M21-ArC DC+ 400 (58) min. 480-660 (70-95) 22 min. 27 (20) min.
Typical Result, As-welded 100% CO2 DC+ 510 (74) 560-640 (81-92) 23 34-133 (25-98) 28-123 (21-91)
Typical Result, As-welded 75% Ar, 25% CO2 DC+ 530 (77) 580-640 (84-92) 23 31-96 (23-71) 36-119 (26-88)

DEPOSIT COMPOSITION

Classification Shielding Gas Polarity %B %C %Mn %P %S %Si Diffusible Hydrogen
mL/100g Weld Metal
E71T-1C-H8 Requirement 100% CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T-1M-H8 Requirement 75-80% Ar, balance CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T-9C-H8 Requirement 100% CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T-9M-H8 Requirement 75-80% Ar, balance CO2 DC+ 0.12 max. 1.75 max. 0.03 max. 0.03 max. 0.90 max. 8.0 max.
E71T1-C1A2-CS1-H8 Requirement 100% CO2 DC+ 0.12 max. 1.75 max. 0.030 max. 0.030 max. 0.90 max. 8 max.
E71T1-M21A2-CS1-H8 Requirement M21-ArC DC+ 0.12 max. 1.75 max. 0.030 max. 0.030 max. 0.90 max. 8 max.
Typical Result 100% CO2 DC+ 0.0037-0.006 0.03-0.05 1.17-1.45 0.020 max. 0.011 0.40-0.52 3-6.2
Typical Result 75% Ar, 25% CO2 DC+ 0.0041-0.006 0.03-0.05 1.35-1.60 0.020 max. 0.010 0.51-0.62 4-7.1

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) 75% Ar / 25% CO2 DC+ 25 (1) 4.4 (175) 20-25 135 1.8 (4.0) 1.6 (3.5) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 6.4 (250) 21-26 150 2.6 (5.7) 2.3 (5.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 7.6 (300) 22-27 165 3.1 (6.8) 2.7 (6.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 8.9 (350) 23-28 190 3.6 (8.0) 3.2 (7.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 10.2 (400) 24-29 205 4.1 (9.1) 3.6 (8.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 11.4 (450) 25-30 225 4.7 (10.3) 4.1 (9.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 12.7 (500) 26-31 245 5.2 (11.4) 4.5 (10.0) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 14.0 (550) 27-32 265 5.7 (12.5) 5.0 (10.9) 86-88
0.045 in (1.1 mm) 75% Ar / 25% CO2 DC+ 25 (1) 15.2 (600) 27-33 285 6.2 (13.7) 5.4 (11.9) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 3.8 (150) 20-25 155 2.0 (4.5) 1.8 (3.9) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 5.1 (200) 21-26 165 2.7 (6.0) 2.4 (5.2) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 6.4 (250) 22-27 190 3.4 (7.5) 2.9 (6.5) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 7.6 (300) 23-28 215 4.1 (9.0) 3.5 (7.8) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 8.9 (350) 24-29 235 4.7 (10.5) 4.1 (9.1) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 9.5 (375) 25-30 255 5.1 (11.2) 4.4 (9.8) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 10.8 (425) 27-31 275 5.8 (12.7) 5.0 (11.1) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 12.1 (475) 28-33 295 6.4 (14.2) 5.6 (12.4) 86-88
0.052 in (1.3 mm) 75% Ar / 25% CO2 DC+ 25 (1) 12.7 (500) 29-35 325 6.8 (15.0) 5.9 (13.0) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 3.2 (125) 20-25 195 2.4 (5.3) 2.1 (4.6) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 4.4 (175) 21-26 215 3.3 (7.4) 2.9 (6.4) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 5.1 (200) 22-27 235 3.8 (8.4) 3.3 (7.3) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 5.7 (225) 23-28 265 4.3 (9.5) 3.7 (8.2) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 6.4 (250) 24-29 285 4.8 (10.5) 4.2 (9.2) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 7.6 (300) 25-31 315 5.7 (12.6) 5.0 (11.0) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 8.3 (325) 25-32 335 6.2 (13.7) 5.4 (11.9) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 8.9 (350) 26-33 365 6.7 (14.7) 5.8 (12.8) 86-88
1/16 in (1.6 mm) 75% Ar / 25% CO2 DC+ 25 (1) 10.2 (400) 28-35 405 7.6 (16.8) 6.6 (14.6) 86-88

NOTES

Note
⁽¹⁾ To estimate ESO, subtract 1/4 in. (6.0 mm) from CTWD.