Description
Characteristics:
LSF-121T is a wire flux combination, Suitable for welding single and multiple wires application. Designed for two-runs or multiple layers with both AC and DC technique. Has excellent slag detach ability and good operation performance. Good mechanical properties at low temperatures can be achieved if it is combined with appropriate wire. It is suitable to be applied in following industries.
Applications:
Typical applications include pressure vessels, H beam, pipe-mill application, shipbuilding and general steel structure.
Notes on Usage:
1. Dry the flux at 350℃ for 6 min. 120 minutes before use.
2. Suitable for multi-pass welding of thick plates.
Classification:
AWS A5.17 F7A6-EM12K
Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S |
| 0.07 | 1.26 | 0.3 | 0.015 | 0.010 |
Typical mechanical properties of weld metal
| YP N/mm2 | TS N/mm2 | EL % | IV -60ºC J |
| 415 | 525 | 31 | 70 |
Sizes and recommended current range ( DC+)
| Wire: Diameter (mm) | 2.4 | 3.2 | 4.0 |
| Wire: Weight per roll (kg) | 25 | 25 | 25 |
| Flux: Weight per bag(kg) | 25 | 25 | 25 |
