Martensitic Stainless Steel Electrode with High Strength for increased resistance to cavitation erosion.
LoTherme-444L especially designed for the fabrication and repair welding of hydro turbine components made of soft martensitic SS 13% Cr-4%Ni alloyed steels and cast steel. Suitable for reclamations of ASTM CA6NM casting, Continuous Casting Rolls, etc.
LoTherme-444L is well suited welding electrode for joining and building up on corrosion resistant martensitic Cr - Ni steels and the corresponding cast steels. The welding deposit has an increased resistance against cavitations and erosion also at working temperatures up to 350°C.
ULTIMATE TENSILE STRENGTH : 79 kgf/mm2
ELONGATION (L=4d) : 17 %
Hardness As Welded : 330 - 400 BHN
CVN IMPACT STRENGTH (@RT) : 60 Joules
Weld the electrode slightly inclined with a short arc. Re-drying 2-3 hours at 250-300°C. For wall thickness more than 10mm, preheating base metal to 150°C is recommended.
|Current Range (Amps)||150-180||110-150||80-110||60-90|