Characteristics:
LKT-347 is a niobium-bearing rutile electrode for Ti and Nb stabilized 18Cr-8Ni steels. Good intergranular corrosion resistance and heat resistance can be obtained due to its Nb content.It is use for AISI 347, 321, 304L steels.
Applications:
It is suitable for welding of stainless steel piping, boiler and gas turbine.
Notes on Usage:
1.Dry the electrodes at 200-250 °C for 60 minutes and keep at 100-150 °C before use.
2.Use lower currents and keep the arc as short as possible
Classification:
AWS A5.4 E347-16
EN EN1600 E 19 9 Nb R 1 2
JIS Z3221 D347-16
Welding position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Cr | Ni | Nb |
| 0.04 | 1.30 | 0.60 | 0.020 | 0.015 | 19.50 | 9.10 | 0.60 |
Typical mechanical properties of weld metal
| TS N/mm² | EL % |
| 600 | 37 |
Sizes and recommended current range (AC or DC+)
| Diameter (mm) | 2.0 | 2.6 | 3.2 | 4.0 | 5.0 | |
| Length (mm) | 250 | 300 | 350 | 350 | 350 | |
| Amps | F | 30-55 | 50-85 | 80-120 | 100-150 | 140-180 |
| V&OH | 20-50 | 45-80 | 70-110 | 90-135 | – | |
| Weight per pack (kg) | 4/5 | 4/5 | 5 | 5 | 5 | |
| Weight per carton (kg) | 20 | 20 | 20 | 20 | 20 | |
