Description
Characteristics:
LFC-811Ni2 is a titania type flux-cored wire.Use 100% CO₂ shield gas. It is designed for welding 590 N/mm² grade high tensile steel for low temperature.With good weldability ,stable arc, less spatter, good bead appearance and good impact toughness down to -40°C.
Applications:
It is suitable for welding on construction machinery, bridge,storage thanks and piping.
Notes on Usage:
1. Use DC(+) polarity.
2 .Use 100% CO₂ shielding gas.
3. Pre-heat at 50-150℃ is required depending on steels, plate thickness and restraint.
4. Proper heat input can obtain required impact value.
5. Maintain interpass temperature under 150°C in multipass welding is good for mechanical property.
Classification:
AWS A5.29 E81T1-Ni2C
EN EN758 T 46 4 2Ni P C1 H10
Welding Position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Ni |
| 0.05 | 1.1 | 0.40 | 0.016 | 0.016 | 2.55 |
Typical mechanical properties of weld metal
| YP N/mm2 | TS N/mm2 | EL % | IV -40°C J |
| 540 | 630 | 26 | 50 |
Sizes and recommended current range ( DC+)
| Diameter (mm) | 1.2 | 1.6 |
| Voltage(Volt) | 25-40 | 25-40 |
| Current(Amp) | 130-300 | 200-400 |
| Stick out(mm) | 15-25 | 15-25 |
| Flow rate(l/min) | 15-25 | 15-25 |
| Weight per spool(kg) | 15 | 15 |
