For Stainless Steels Alloys
LoTherme-409
AWS: SFA
EN ISO CODE:
Low heat input stainless steel electrode for similar and dissimilar applications.
Approvals
CHARACTERSTICS
- A highly crack resistant weld deposit which displays good corrosion and scaling resistance.
- On horizontal fillet welds, produce more of spray arc and a finer rippled weld bead. The weld metal is of radiographic quality.
- Electrode can be used in horizontal, vertical up, and overhead positions.
- Detachability of slag is very easy.
Applications
LoTherme-409 is ideally suited for repair welding SS 309L class in wrought or cast form. It can also used for welding dissimilar metals, such as joining SS304L to carbon steel, welding the clad side of SS304L clad steels, and applying stainless steel sheet lining to carbon steel shells.
Typical Mechanical Properties of All Weld Metal
Ultimate Tensile Strength : 570 MPa
Elongation (L=4d) : 40%
Welding Technique
Re-dry the electrodes at 300-350°C for one hour. Clean the weld area free of rust, oil, grease, paint, or any other surface contamination. To ensure minimal heat input, use short arc and stringer bead technique.
Current Conditions : DC (+) / AC
Size (mm) Dia x Length | 5x350 | 4x350 | 3.15x350 | 2.5x350 |
| Current Range (Amps) | 140-170 | 100-130 | 70-100 | 50-70 |
