Coreshield 71T-8 OS
Coreshield 71T-8 OS is a self-shielded flux cored wire designed to weld critical structural applications such as TKY joints for offshore construction, pipe structures, bridges and storage tanks. It is designed to provide excellent low temperature impact toughness down to -40 degrees C. whilst maintaining great arc characteristics, high welder appeal and easy slag removal in all welding positions.
Typical Charpy V-Notch Properties
| As Welded | |
| Impact Value | 127 ft-lb |
| Impact Value | 172 J |
| Shielding Gas | AWS |
| Testing Temperature | -40 °F |
| Testing Temperature | -40 °C |
Typical Tensile Properties
| Condition | Elongation | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 28 % | AWS | 521 MPa (76 ksi) | 429 MPa (62 ksi) |
Deposition Data
| Current | 160-250 A |
| Deposition Rate | 2.4-5.1 lb/h |
| Deposition Rate | 1.1-2.3 kg/h |
| Diameter | 5/64 in. |
| Diameter | 2.0 mm |
| Voltage | 18-23 V |
| Wire Feed Speed | 55-102 in./min |
| Wire Feed Speed | 1.4-2.6 m/min |
Classifications
| Weld Metal |
SFA/AWS A5.29 : E71T8-Ni1 J H8 EN ISO 17632-A : T42 4 1Ni Y 1 |
Approvals
| Approvals |
ABS E71T8-Ni1 J H8 CE EN 13479 CWB CSA W48-18 DNV IV Y40MS |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | C-Mn-Ni-Al |
| Diffusible Hydrogen | <8 |
| Welding Current | DC- |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| Al | C | Mn | Ni | P | S | Si | ||||||||
| AWS DC- | ||||||||||||||
| 0.92 % | 0.06 % | 1.05 % | 0.93 % | 0.006 % | 0.003 % | 0.15 % | ||||||||
Part Numbers and Accessories
ESAB EQUIPMENT WARRANTIES ARE VALID ONLY WHEN PURCHASED THROUGH AN ESAB AUTHORIZED DEALERSHIP.