Description
Characteristics:
LKE-9018-B3 is an iron powder low hydrogen type electrode for low alloy heat resistance steel. The weld metal contains 2.25%Cr-1%Mo which the service temperature is at 550°C. Good creep rupture strength also can be obtained at high temperature.
Applications:
It is suitable for welding of piping steels (STPA24, A335-P22), boilers (STBA24), heat exchanger pipes (A182-F22, A336-F22)
Notes on Usage:
1.Dry the electrodes at 350-400°C for 60 minutes before use.
2.Keep the arc as short as possible.
Classification:
AWS A5.5 E9018-B3
EN EN1599 E CrMo2 B 3 2
JIS Z3223 DT2418
Welding position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Cr | Mo |
| 0.080 | 0.69 | 0.70 | 0.013 | 0.011 | 2.32 | 1.07 |
Typical mechanical properties of weld metal
| YP N/mm² | TS N/mm² | EL % | PWHT |
| 620 | 725 | 24 | 690°C x1hr |
Sizes and recommended current range (AC or DC+)
| Diameter (mm) | 3.2 | 4.0 | 5.0 | |
| Length (mm) | 350 | 400 | 400 | |
| Amps | F | 90-140 | 140-190 | 190-240 |
| V&OH | 80-120 | 120-160 | – | |
| Weight per pack (kg) | 5 | 5 | 5 | |
| Weight per carton (kg) | 20 | 20 | 20 | |
