Atom Arc 8018
Atom Arc 8018 electrodes deposit 1% Ni weld metal. They are used primarily to weld high-tensile steels in the 70-80 ksi (483-552 MPa) tensile strength range, especially where notch toughness at temperatures as low as -40°F (-40°C) is required.
Industries
- Bridge Construction
- Industrial and General Fabrication
- Mobile Equipment
- Petrochemical
- Pipeline
- Power Generation
- Ship/Barge Building
Welding Process
- SMAW/MMA (Stick)
Typical Charpy V-Notch Properties
| Impact Value | Testing Temperature | |||
| as welded | ||||
| 168 J (124 ft-lb) | -29 degC (-20 degF) | |||
| 154 J (114 ft-lb) | -40 degC (-40 degF) | |||
| stress relieved | ||||
| 175 J (129 ft-lb) | 8 hr | 621 degC (1150 degF) | -29 degC (-20 degF) | |
| 156 J (115 ft-lb) | 8 hr | 621 degC (1150 degF) | -40 degC (-40 degF) | |
Typical Tensile Properties
| Condition | Stress Relieved | As Welded |
| Tensile Strength | 560 MPa (81 ksi) | 585 MPa (85 ksi) |
| Yield Strength | 485 MPa (70 ksi) | 510 MPa (74 ksi) |
| Elongation | 30 % | 30 % |
| Testing Time | 8 hr | |
| Testing Temperature | 621 degC (1150 degF) |
Deposition Data
| Current | Deposition Rate | Diameter | Deposition Efficiency (%) | Optimal Amps |
| 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 (2.6 lb/h) | 3.2 mm (1/8 in.) | 71.6 % | 120 A |
| 90-160 A | 1.2 kg/h (2.7 lb/h) | 3.2 mm (1/8 in.) | 70.9 % | 140 A |
| 130-220 A | 1.7 kg/h (3.8 lb/h) | 4.0 mm (5/32 in.) | 73.5 % | 170 A |
| 200-300 A | 2.2 kg/h (4.9 lb/h) | 4.8 mm (3/16 in.) | 76.4 % | 200 A |
| 200-300 A | 2.4 kg/h (5.4 lb/h) | 4.8 mm (3/16 in.) | 74.6 % | 250 A |
| 130-220 A | 1.1 kg/h (3.1 lb/h) | 4.0 mm (5/32 in.) | 75 % | 140 A |
Classifications
| Grade | E8018-C3 H4R |
| Name | AWS A5.5 |
Approvals
| Approvals |
ABS 3Y/AWS A5.5: E8018-C3 CWB CSA W48 E5518-C3 LR 4Y40M(H10) QPL-22200/1 MIL-8018-C3 |
| 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 | Cr | Cu | Mn | Mo | Nb | Ni | P | S | Si | V | ||||
| 0.045 % | 0.06 % | 0.139 % | 1.08 % | 0.12 % | 0.003 % | 0.91 % | 0.01 % | 0.01 % | 0.31 % | 0.009 % | ||||
Part Numbers and Accessories
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