Description
Characteristics:
LFC-811A1 is a 0.5% Molybdenum alloyed flux cored wire which prevents deterioration in tensile strength after stress relief and extended service temperature. With good weldability ,stable arc and efficiency in all position welding.
Applications:
It is suitable for welding high-strength and matching creep-resisting steels.
Notes on Usage:
1. Use DC(+) polarity.
2 .Use 100% CO2 shielding gas.
3. Pre-heat at 100-200oC and PWHT at 600-650°C.
Classification:
AWS A5.29 E81T-A1C
Welding Position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Mo |
| 0.05 | 0.75 | 0.35 | 0.014 | 0.005 | 0.55 |
Typical mechanical properties of weld metal
| YP N/mm² | TS N/mm² | EL % | PWHT |
| 570 | 620 | 26 | 620°C x1hr |
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 |
