DETAILS
Designed specifically for use with high Argon mixed gas. Shipbuilders and structural fabricators like it because it runs well – it's our best running E71T-1 for high Argon gas blends,
Features
- Fast freezing slag for out-of-position welding
- Designed for welding with 75 - 85% Argon/balance CO2 shielding gas
- Premium arc performance and bead appearance
- ProTech® foil bag packaging
- Meets AWS D1.8 seismic lot waiver requirements
- Available to meet Buy America. Choose a Buy America MTS product from the list of Available Types or contact a Lincoln Electric representative
- Notes: AWS D1.8 structural steel seismic supplement test data can be found in the Lincoln Electric Certificate Center.
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
See test result disclaimer
CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.20 | E71T-1M-H8, E71T-9M-H8 |
| AWS | AWS A5.36 | E71T1-M21A2-CS1-H8 |
| ABS | ABS - Part 2 | 3YSA H10 |
| CWB | CSA W48 | E491T1-M20A3-CS1-H8 (E491T-9M-H8), E491T1-M21A3-CS1-H8 (E491T-9M-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) @ -20°C (0°F) |
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) |
|---|---|---|---|---|---|---|---|
| E71T-1M-H8 Requirement | 75-80% Ar, balance 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-M21A2-CS1-H8 Requirement | M21-ArC | DC+ | 400 (58) min. | 480-660 (70-95) | 22 min. | 27 (20) min. | |
| Typical Result, As-welded | 75% Ar, 25% CO2 | DC+ | 500 (73) | 570-650 (83-94) | 27 | 94-125 (69-92) | 28-165 (21-122) |
DEPOSIT COMPOSITION
| Classification | Shielding Gas | Polarity | %B | %C | %Mn | %P | %S | %Si |
Diffusible Hydrogen
mL/100g Weld Metal |
|---|---|---|---|---|---|---|---|---|---|
| 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-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-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 | 75% Ar, 25% CO2 | DC+ | 0.0051-0.007 | 0.03-0.06 | 1.35-1.63 | 0.015 max. | 0.011 max. | 0.46-0.63 | 2.5-8 |
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) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 4.4 (175) | 21-26 | 125 | 1.8 (4.0) | 1.6 (3.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 6.4 (250) | 22-27 | 150 | 2.6 (5.7) | 2.3 (5.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 7.6 (300) | 23-28 | 165 | 3.1 (6.8) | 2.7 (6.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 8.9 (350) | 23-29 | 190 | 3.6 (8.0) | 3.2 (7.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 10.2 (400) | 25-30 | 205 | 4.1 (9.1) | 3.6 (8.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 11.4 (450) | 26-31 | 225 | 4.7 (10.3) | 4.1 (9.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 12.7 (500) | 27-32 | 245 | 5.2 (11.4) | 4.5 (10.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 14.0 (550) | 28-33 | 265 | 5.7 (12.5) | 5.0 (10.9) | 86-88 |
| 0.045 in (1.1 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 15.2 (600) | 28-34 | 280 | 6.2 (13.7) | 5.4 (11.9) | 86-88 |
| 0.052 in (1.3 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 3.8 (150) | 21-26 | 150 | 2.0 (4.5) | 1.8 (3.9) | 86-88 |
| 0.052 in (1.3 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 5.1 (200) | 21-27 | 165 | 2.7 (6.0) | 2.4 (5.2) | 86-88 |
| 0.052 in (1.3 mm) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 10.8 (425) | 26-31 | 275 | 5.8 (12.7) | 5.0 (11.1) | 86-88 |
| 0.052 in (1.3 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 12.1 (475) | 27-32 | 295 | 6.4 (14.2) | 5.6 (12.4) | 86-88 |
| 0.052 in (1.3 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 12.7 (500) | 27-33 | 315 | 6.8 (15.0) | 5.9 (13.0) | 86-88 |
| 1/16 in (1.6 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 3.2 (125) | 20-25 | 185 | 2.4 (5.3) | 2.1 (4.6) | 86-88 |
| 1/16 in (1.6 mm) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance 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) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 7.6 (300) | 25-30 | 315 | 5.7 (12.6) | 5.0 (11.0) | 86-88 |
| 1/16 in (1.6 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 8.3 (325) | 26-31 | 335 | 6.2 (13.7) | 5.4 (11.9) | 86-88 |
| 1/16 in (1.6 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 8.9 (350) | 27-32 | 365 | 6.7 (14.7) | 5.8 (12.8) | 86-88 |
| 1/16 in (1.6 mm) | 75-85% Ar / balance CO2 | DC+ | 25 (1) | 10.2 (400) | 28-33 | 385 | 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. |