DUAL SHIELD II 70T-12H4
Each of the new Dual Shield II H4 wires is an all-position flux cored wire that provides excellent low temperature toughness in both the as welded and/or stress relieved conditions (as applicable) when used with 75% Ar / 25% CO2. Each can produce diffusible hydrogen levels of 4 mL/100g over a wide range of welding parameters. Dual Shield II 70T-12H4 also provides the smooth arc and low spatter levels characteristic of other Dual Shield II wires. Dual Shield II 70T-12H4 can be used in construction, heavy equipment fabrication, offshore oil components, shipbuilding, and railcar. Weld metal analysis is similar to E7018.
Industries
- Bridge Construction
- Civil Construction
- Mobile Equipment
- Industrial and General Fabrication
- Railcars
- Ship/Barge Building
Welding Process
- FCAW (Flux Core)
Typical Tensile Properties
| 75% Ar - 25% CO2 | ||||||
| Condition | Elongation | Reduction in Area | Tensile Strength | Yield Strength | Testing Temperature | Testing Time |
| As Welded | 27 % | 71 % | 80 ksi | 72 ksi | - | - |
| Stress Relieved | 30 % | 73 % | 78 ksi | 68 ksi | 1150 °F | 2 hr |
Typical Charpy V-Notch Properties
| 75% Ar - 25% CO2 | ||||
| Condition | Impact Value | Test Condition Temp | Test Condition Time | Testing Temperature |
| Stress Relieved | 76 ft-lb | 1150 | 2 | -20 °F |
| As Welded | 62 ft-lb | - | - | -40 °C |
| As Welded | 79 ft-lb | - | - | -20 °F |
Typical Weld Metal Analysis
| 75% Ar - 25% CO2 | ||||
| P | Mn | C | S | Si |
| 0.012 % | 1.18 % | 0.049 % | 0.007 % | 0.37 % |
| Approvals: | ABS; CWB; CSA W48 E491T-12MJ-H4; DNV-GL; LR |
| Classifications: | ASME SFA 5.36; ASME SFA 5.20; AWS A5.36; E71T1-M21P2-CS2-H4; AWS A5.36; E71T1-M21A4-CS2-H4; AWS A5.20; E71T-1MJ-H4/T-9MJ-H4/T-12MJ-H4 |
Approvals are based on factory location. Please contact ESAB for more information.