Diameters / Packaging

Diameters	33 lb Spool
0.052 in (1.3 mm)	ED031670

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.

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

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

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.