LoTherme-600
                     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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