LoTherme-600 ppt
                     LoTherme-600
Co-Cr-W-alloy of Cobalt Grade 1 for surfacing to resist 
high temperature wear.
Characteristics
• LoTherme-600 welds well in the horizontal 
position. Soft arc, smooth seam surface. It still 
retains great hardness at high temperatures, even 
at red heat, and recovers its original hardness 
after cooling.
Applications
• LoTherme-600 is the hardest of the cobalt-
containing alloys and is used mainly for severe 
friction wear, erosion and corrosion. It is very 
resistant to sliding stressing metal-to-metal, and 
is therefore recommended for pump bushes, 
screw conveyors, wear rings, guide rails, cutters, 
rolls.
Typical Mechanical Properties 
Of All Weld Metal
• AT ROOM TEMPERATURE : 45-55 HRC
• AT 600°C : 43-48 HRC
Welding Instructions
• Re-dry the electrodes at 250°C for one hour before 
use. Clean the weld zone of rust, scale and grease. 
Bigger work pieces are preheated to about 300°C. 
Keep the amperage as low as possible, so as to fuse 
the parent metal as little as possible. Guide the 
electrode vertically, keeping the arc short. Weave only 
slightly. Cool slowly in an oven or under asbestos. 
Machinable only by grinding.

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