E7018-1
Alloy Type: A5.1, CARBON STEEL Covered Arc Welding Electrodes
E7018 is a low-hydrogen iron powder type electrode that produces high quality x-ray welds. It can be used in all positions on AC or DC reverse polarity welding current. E7018/E7018-1 is recommended for welding medium grade carbon steels where no preheat is used, and on cold rolled steels normally exhibiting excessive porosity when welded with conventional electrodes.
Typical Applications: low-alloy structurals, low, medium and high carbon steels, offshore rigs and power plants, steel structures, tack welds for tubular wire applications
| AWS Class: E7018/E7018-1 | Certification: AWS A5.1/A5.1M:2004 |
| Alloy: E7018 | ASME SFA A5.1 |
| Welding Position: F, V, OH, H | Current:
AC-DCEP |
| Tensile Strength, kpsi: | 70 min |
| Yield Strength, kpsi: | 58 min |
| Elongation in 2” (%): | 22 min |
Typical Wire Chemistry as per AWS A5.1 (single values are maximum)
| C | Mn | Si | P | S | Ni | Cr | Mo | V | Combined Limit for Mn+Ni+Cr+Mo+V |
| 0.15 | 1.60 | 0.75 | 0.035 | 0.035 | 0.30 | 0.20 | 0.30 | 0.08 | 1.75 |
| Typical Welding Parameters | |||||
| Diameter | Process | Volt | Amps (flat) | Amps (V/OH) | |
| in | (mm) | ||||
| 3/32 | (2.4) | SMAW | 21-25 | 65-80 | 65-75 |
| 1/8 | (3.2) | SMAW | 21-25 | 90-110 | 80-95 |
| 5/32 | (4.0) | SMAW | 21-26 | 135-160 | 120-140 |
| 3/16 | (4.8) | SMAW | 22-26 | 160-210 | 140-160 |