Atom Arc 7018-Mo
Atom Arc 7018-Mo electrodes contain 1/2% Mo as alloy addition. They are recommended for welding low-alloy, high tensile steels of 50 ksi (345 MPa) minimum yield strength and also 1/2% Molybdenum steels and pipes. They are widely employed in the fabrication and erection of boilers, pressure piping and tubing and other pressure vessel applications.
Industries
- Civil Construction
- Industrial and General Fabrication
- Mobile Equipment
- Power Generation
Welding Process
- SMAW/MMA (Stick)
Typical Charpy V-Notch Properties
| stress relieved | ||||
| 20 hr | ||||
| 8 hr | ||||
| 8 hr | ||||
| 13 hr | ||||
Typical Tensile Properties
| Condition | Stress Relieved | Stress Relieved | Stress Relieved | As Welded |
| Tensile Strength | 607 MPa (88 ksi) | 587 MPa (85 ksi) | 607 MPa (88 ksi) | 600 MPa (87 ksi) |
| Yield Strength | 524 MPa (76 ksi) | 504 MPa (73 ksi) | 518 MPa (75 ksi) | 530 MPa (77 ksi) |
| Elongation | 28 % | 29 % | 29 % | 27 % |
| Testing Time | 8 hr | 20 hr | 1 hr | |
| Testing Temperature | 620 degC (1150 degF) | 620 degC (1150 degF) | 620 degC (1150 degF) |
Deposition Data
| Current | Deposition Rate | Diameter | Deposition Efficiency (%) | Optimal Amps |
| 130-220 A | 1.7 kg/h (3.8 lb/h) | 4.0 mm (5/32 in.) | 73.5 % | 170 A |
| 90-160 A | 1.2 kg/h (2.6 lb/h) | 3.2 mm (1/8 in.) | 71.6 % | 120 A |
| 200-300 A | 2.4 kg/h (5.4 lb/h) | 4.8 mm (3/16 in.) | 74.6 % | 250 A |
| 200-300 A | 2.2 kg/h (4.9 lb/h) | 4.8 mm (3/16 in.) | 76.4 % | 200 A |
| 70-100 A | 0.8 kg/h (1.7 lb/h) | 2.4 mm (3/32 in.) | 66.3 % | 90 A |
| 90-160 A | 1.2 kg/h (2.7 lb/h) | 3.2 mm (1/8 in.) | 70.9 % | 140 A |
| 250-350 A | 3.3 kg/h (7.2 lb/h) | 5.6 mm (7/32 in.) | 74 % | 300 A |
| 250-350 A | 2.9 kg/h (6.5 lb/h) | 5.6 mm (7/32 in.) | 75 % | 250 A |
| 130-220 A | 1.4 kg/h (3.1 lb/h) | 4.0 mm (5/32 in.) | 75 % | 140 A |
Classifications
| Classifications |
ASME SFA 5.5 : AWS A5.5 : E7018-A1 H4R |
Approvals
| Grade | AWS A5.5: E7018-A1 |
| Society | ABS |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Coating Type | Low-hydrogen iron powder |
| 0 | |
| Welding Current | AC or DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Mn | Mo | P | S | Si | |||||||||
| 0.04 % | 0.80 % | 0.55 % | 0.012 % | 0.01 % | 0.40 % | |||||||||
| 0.012 % | 0.40 % | |||||||||||||
Part Numbers and Accessories
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