Atom Arc 12018
Atom Arc 12018 is recommended for use in fabrication of low-alloy, high tensile steels where welds of 120 ksi (830 MPa) minimum tensile strength are required. Atom Arc 12018 is typically used to weld forging, casting plate and pressure vessels.
Industries
- Automotive
- Industrial and General Fabrication
- Mobile Equipment
- Railcars
Welding Process
- SMAW/MMA (Stick)
Typical Charpy V-Notch Properties
| As Welded | |
| Impact Value | 26 ft-lb |
| Impact Value | 35 J |
| Testing Temperature | -60 °F |
| Testing Temperature | -51 °C |
Typical Tensile Properties
| Condition | Elongation | Reduction in Area | Tensile Strength | Yield Strength |
| As Welded | 18 % | 56 % | 920 MPa (133 ksi) | 830 MPa (120 ksi) |
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 |
| 130-220 A | 1.1 kg/h (3.1 lb/h) | 4.0 mm (5/32 in.) | 75 % | 140 A |
Classifications
| Classifications |
ASME SFA 5.5 : AWS A5.5 : E12018M H4R |
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 | ||||
| 0.047 % | 0.63 % | 0.092 % | 1.88 % | 0.23 % | 0.005 % | 1.94 % | 0.01 % | 0.01 % | 0.35 % | 0.010 % | ||||