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For Stainless Steels Alloys

LoTherme-409

Low heat input stainless steel electrode for similar and dissimilar applications.

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.
  • Use short arc, stringer beads, and low currents.
  • Avoid buildup of heat during welding.
  • Remove slag with stainless steel wire brush.
Current Conditions : DC (+) / AC
Size (mm)
5x350
4x350
3.15x350
2.5x350
Current Range (Amps)
140-170
100-130
70-100
50-70