Description
Characteristics:
LKE-11018-H4 is a low hydrogen electrode for the welding of 690 N/mm² grade high tensile steel. With excellent crack resistance, good mechanical property and bead appearance.
Applications:
It is suitable for build-up welding before hardfacing. Proper base metals are forging cast iron, structural steel(HT70), pressure vessel(ASTM A225 Gr.C), carbon steel plate for mechanical fabrication(S45C),SAE 1345, ect..
Notes on Usage:
1.Dry the electrodes at 350-400°C for 60 minutes and keep at 100-150°C before use.
2.Preheat the plates at 100-150°C is before welding.
3.Keep the arc as short as possible.
4.Take the back-step method at the arc starting to prevent blowholes.
Classification:
AWS A5.5 E11018-H4
Welding position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Ni | Mo | Cr | V |
| 0.065 | 1.50 | 0.40 | 0.02 | 0.005 | 2.00 | 0.30 | 0.04 | 0.015 |
Typical mechanical properties of weld metal
| YP N/mm² | TS N/mm² | EL % | IV -50℃ J |
| 760 | 830 | 22 | 70 |
Sizes and recommended current range (AC or DC+)
| Diameter (mm) | 3.2 | 4.0 | 5.0 | |
| Length (mm) | 350 | 450 | 450 | |
| Amps | F | 120-150 | 160-200 | 180-240 |
| V&OH | 105-125 | 130-150 | – | |
| Weight per pack (kg) | 5 | 5 | 5 | |
| Weight per carton (kg) | 20 | 20 | 20 | |
