Low Hydrogen Electrodes
- Gas Equipment
- Arc Gouging (CAC-A) & Exothermic Cutting
- Welding Automation & Robotics
- Filler Metals
- Arc Welding Equipment
- Plasma
- Cutting Automation
- Steel Industry Products
- PPE & Accessories
PREV
- Plasma Transferred Arc & Laser Cladding (PTA)
- Specialty Alloys
- Equipment & Accessories
- Covered (Stick) Electrodes (SMAW)
- Gas-Shielded Flux-Cored Wires (FCAW)
- Self-Shielded Flux-Cored Wires (FCAW)
- Metal-Cored Wires (MCAW)
- TIG Rods (GTAW)
- MIG/MAG Wires (GMAW)
- Submerged Arc Wires & Fluxes (SAW)
- Repair and Maintenance
- Ceramic BackUp Tape
ATOM ARC 7018-SR
Atom Arc 7018-SR is an all-position low hydrogen electrode. The moisture resistance and welder appeal is similar to other Atom Arc electrodes. Atom Arc 7018-SR was developed to maintain 70 ksi (483 MPa) tensile strength after 16 hours stress relieving.
Industries
- Mobile Equipment
- Power Generation
- Civil Construction
- Industrial and General Fabrication
Welding Process
- SMAW/MMA (Stick)
Typical Tensile Properties
| Condition | Elongation | Reduction in Area | Stress Relieved Temperature | Stress Relieved Testing Time | Tensile Strength | Yield Strength |
| Stress Relieved | 35 % | 77 % | 1150 °F | 16 hr | 74 ksi | 59 ksi |
| Stress Relieved | 35 % | 76 % | 1150 °F | 8 hr | 76 ksi | 61 ksi |
| As Welded | 32 % | 76 % | - | - | 83 ksi | 68 ksi |
Typical Charpy V-Notch Properties
| Condition | Impact Value | Testing Temperature | Stress Relieved Testing Temp | Stress Relieved Testing Time |
| As Welded | 114 ft-lb | -20 °F | - | - |
| Stress Relieved | 133 ft-lb | -20 °F | 1150 °F | 8 hr |
| Stress Relieved | 185 ft-lb | -20 °F | 1150 °F | 16 hr |
Typical Weld Metal Analysis %
| weld metal analysis | |||||
| P | Mn | Mo | C | S | Si |
| 0.014 % | 1.30 % | 0.10 % | 0.06 % | 0.014 % | 0.30 % |
| Classifications: | ASME SFA 5.1; AWS A5.1; E7018 H4R |
| Coating Type: | Low-hydrogen iron powder |
| CTOD-Tested: | False |
| Welding Current: | AC or DC+ |