E7018 a carbon steel welding electrode with Fe powder and low-hydrogen potassium coating, which is permitted for all positions welding work. AC/DC both can be applied. It has good welding performance with smooth arc, low spatter level and effortless slag removal ability. The deposited metal has high deposition efficiency and good mechanical properties.
The product is applicable for efficient welding of important structures of carbon steel and low alloy steel.
Before welding, the welding electrode should be baked at 350℃ for 1 hour for ready use.
Impurities such as rust, oil stain and moisture must be cleared off of the work piece before welding.
Operating with short arc and narrow gap when welding.
| Chemical Composition (%) | |||||||||
| Chemical Composition | C | Mn | Si | S | P | Ni | Cr | Mo | V |
| Example value | 0.077 | 1.07 | 0.54 | 0.005 | 0.014 | 0.011 | 0.028 | 0.007 | 0.016 |
| Mechanical Properties of Deposited Metal | ||||
| Test Item | Rm (N/mm2) | Rel (N/mm2) | A (%) | KV2(J) -30°C |
| Example value | 550 | 455 | 32 | 156 |
| Reference Current (DC) | ||||
| Diameter | Φ2.5 | Φ3.2 | Φ4.0 | Φ5.0 |
| Amperage | 60 ~ 100 | 80 ~ 140 | 110 ~ 210 | 160 ~ 230 |
