Description
Characteristics:
LFC-701 is a flux cored wire suitable for flat and horizontal position welding. With excellent stable arc, low spatter, good slag detachability and deposition rate. It has good porosity resistance for fillet welding of zinc-primer coated steels.
Applications:
It is widely used for shipbuilding, bridge construction, offshore structure and general fabrication.
Notes on Usage:
1. Use DC(+) polarity.
2. Use CO₂ as shielding gas.
3. Proper preheat at range 50-150°C and maintain interpass temperature under 150°C.
Classification:
AWS A5.20 E70T-1C
EN EN758 T 42 2 R C 3 H10
JIS Z3313 YFW-C50DM
Welding Position:
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S |
| 0.05 | 1.55 | 0.60 | 0.017 | 0.007 |
Typical mechanical properties of weld metal
| YP N/mm2 | TS N/mm2 | EL % | IV J | |
| 550 | 595 | 27 | -20°C | -30°C |
| 90 | 70 | |||
Sizes and recommended current range ( DC+)
| Diameter (mm) | 1.2 | 1.6 | ||
| Welding Position | F | HF | F | HF |
| Voltage(Volt) | 25-35 | 25-38 | 25-35 | 28-38 |
| Current(Amp) | 150-300 | 180-300 | 220-400 | 270-400 |
| Stick out(mm) | 15-25 | 15-25 | 20-20 | 20-30 |
| Flow rate(l/min) | 15-25 | 15-25 | 20-25 | 20-25 |
| Weight per spool(kg) | 15 | 15 | ||
