DETAILS
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
Disclaimers
Service Information
Documentation
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-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 |
NOTES
| Note |
|---|
| ⁽¹⁾ To estimate ESO subtract 1/4 in. (6.0 mm) from CTWD |