Low Hydrogen/Low Alloy Electrodes
- Gas Equipment
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PREV
- Plasma Transferred Arc & Laser Cladding (PTA)
- Specialty Alloys
- Equipment & Accessories
- Covered (Stick) Electrodes (SMAW)
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ATOM ARC 8018-SR
Atom Arc 8018-SR is an all-position low hydrogen electrode. The moisture resistance and welder appeal is similar to other Atom Arc electrodes. Atom Arc 8018-SR was developed to maintain 80 ksi (552 MPa) after 50 hours stress relieving.
Industries
- Power Generation
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 | 29 % | 75 % | 1150 °F | 8 hr | 85 ksi | 71 ksi |
| Stress Relieved | 32 % | 78 % | 1150 °F | 50 hr | 82 ksi | 69 ksi |
| Stress Relieved | 30 % | 76 % | 1150 °F | 20 hr | 85 ksi | 72 ksi |
Typical Charpy V-Notch Properties
| Condition | Impact Value | Stress Relieved Testing Temp | Stress Relieved Testing Time | Testing Temperature |
| Stress Relieved | 108 ft-lb | 1150 °F | 8 hr | -50 °F |
| Stress Relieved | 106 ft-lb | 1150 °F | 20 hr | -50 °F |
| Stress Relieved | 114 ft-lb | 1150 °F | 50 hr | -50 °F |
| Stress Relieved | 160 ft-lb | 1150 °F | 8 hr | 60 °F |
| Stress Relieved | 172 ft-lb | 1150 °F | 20 hr | 60 °F |
| Stress Relieved | 165 ft-lb | 1150 °F | 50 hr | 60 °F |
Typical Weld Metal Analysis %
| weld metal analysis | |||||||||
| P | Mn | Cu | Mo | C | Nb | V | Si | Ni | Cr |
| 0.01 % | 1.12 % | 0.114 % | - | 0.075 % | 0.003 % | 0.009 % | 0.34 % | 0.90 % | 0.01 % |
| - | - | - | 0.26 % | - | - | - | - | - | - |
| Classifications: | ASME SFA 5.5; AWS A5.5; E8018-G H4R |
| Coating Type: | Low-hydrogen iron powder |
| CTOD-Tested: | False |
| Welding Current: | AC or DC+ |