DETAILS
Our 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.
Features
- Capable of producing weld deposits with impact toughness exceeding 27 J (20 ft·lbf) at -40°C (-40°F)
- Designed for welding with 75-80% Argon/balance CO2 shielding gas
- Premium arc performance and bead appearance
- ProTech® foil bag packaging
Disclaimers
Service Information
You May Also Need
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-12M-JH8, E71T-1M-JH8, E71T-9M-JH8 |
| AWS | AWS A5.36 | E71T1-M21A4-CS2-H8 |
| ABS | ABS - Part 2 | 4YSA H10 |
| CWB | CSA W48 | E491T1-M21A4-CS1-H8 (E491T-9MJ-H8), E491T1-M21A4-CS2-H8 (E491T-12MJ-H8) |
| DNV-GL | DNV - 2.9 | IV YMS H10 |
| LR | LR - Chapter 11 | 4YS 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-12M-JH8 Requirement | 75-80% Ar, balance CO2 | DC+ | 400 (58) min. | 480-620 (70-90) | 22 min. | 27 (20) min. |
| E71T-1M-JH8 Requirement | 75-80% Ar, balance CO2 | DC+ | 400 (58) min. | 480-660 (70-95) | 22 min. | 27 (20) min. |
| E71T-9M-JH8 Requirement | 75-80% Ar, balance CO2 | DC+ | 400 (58) min. | 480-660 (70-95) | 22 min. | 27 (20) min. |
| E71T1-M21A4-CS2-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+ | 500-570 (72-82) | 570-620 (82-89) | 22-29 | 36-165 (26-122) |
DEPOSIT COMPOSITION
| Classification | Shielding Gas | Polarity | %B | %C | %Mn | %P | %S | %Si |
Diffusible Hydrogen
mL/100g Weld Metal |
|---|---|---|---|---|---|---|---|---|---|
| E71T-12M-JH8 Requirement | 75-80% Ar, balance CO2 | DC+ | 0.12 max. | 1.60 max. | 0.03 max. | 0.03 max. | 0.90 max. | 8.0 max. | |
| E71T-1M-JH8 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-JH8 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-M21A4-CS2-H8 Requirement | M21-ArC | DC+ | 0.12 max. | 1.60 max. | 0.030 max. | 0.030 max. | 0.90 max. | 8 max. | |
| Typical Result | 75% Ar, 25% CO2 | DC+ | 0.0038-0.006 | 0.03-0.06 | 1.36-1.53 | 0.015 max. | 0.012 max. | 0.32-0.36 | 2-6 |
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) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 4.4 (175) | 20-25 | 140 | 1.8 (4.0) | 1.6 (3.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 5.7 (225) | 21-26 | 150 | 2.3 (5.1) | 2.0 (4.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 7.0 (275) | 22-27 | 165 | 2.8 (6.3) | 2.5 (5.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.3 (325) | 22-27 | 190 | 3.4 (7.4) | 2.9 (6.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.9 (350) | 23-28 | 205 | 3.6 (8.0) | 3.2 (7.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 10.2 (400) | 24-29 | 230 | 4.1 (9.1) | 3.6 (8.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 11.4 (450) | 25-31 | 245 | 4.7 (10.3) | 4.1 (9.0) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 12.1 (475) | 26-32 | 265 | 4.9 (10.8) | 4.3 (9.5) | 86-88 |
| 0.045 in (1.1 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 13.3 (525) | 27-33 | 280 | 5.4 (12.0) | 4.7 (10.4) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 3.8 (150) | 20-25 | 150 | 2.0 (4.5) | 1.8 (3.9) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 4.4 (175) | 21-26 | 165 | 2.4 (5.2) | 2.1 (4.6) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 5.1 (200) | 22-27 | 190 | 2.7 (6.0) | 2.4 (5.2) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 5.7 (225) | 23-28 | 215 | 3.1 (6.7) | 2.7 (5.9) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 6.4 (250) | 24-29 | 235 | 3.4 (7.5) | 2.9 (6.5) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 7.6 (300) | 25-30 | 255 | 4.1 (9.0) | 3.5 (7.8) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.3 (325) | 27-31 | 275 | 4.4 (9.7) | 3.8 (8.5) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.9 (350) | 28-32 | 295 | 4.7 (10.5) | 4.1 (9.1) | 86-88 |
| 0.052 in (1.3 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 11.4 (450) | 29-34 | 330 | 6.1 (13.5) | 5.3 (11.7) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 3.8 (150) | 21-26 | 200 | 2.9 (6.3) | 2.5 (5.5) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 4.4 (175) | 22-27 | 215 | 3.3 (7.4) | 2.9 (6.4) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 5.1 (200) | 22-28 | 235 | 3.8 (8.4) | 3.3 (7.3) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 5.7 (225) | 24-29 | 265 | 4.3 (9.5) | 3.7 (8.2) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 6.4 (250) | 25-30 | 285 | 4.8 (10.5) | 4.2 (9.2) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 7.6 (300) | 26-31 | 315 | 5.7 (12.6) | 5.0 (11.0) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.3 (325) | 27-32 | 335 | 6.2 (13.7) | 5.4 (11.9) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 8.9 (350) | 28-33 | 365 | 6.7 (14.7) | 5.8 (12.8) | 86-88 |
| 1/16 in (1.6 mm) | 75-80% Ar / balance CO2 | DC+ | 25 (1) | 10.2 (400) | 29-34 | 415 | 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. |