For Hard-Facing, Wear-facing or Overlay Applications

LoTherme-622

AWS: SFA

EN ISO CODE:

Unique alloy for intense hot media like on Clinker/Sinter Breaker Hammer, Grate-Bars to withstand the extreme Abrasion/Erosion coupled with hi-temperatures up to 800 C.

Approvals

CHARACTERSTICS

LoTherme-622 is a specifically formulated SMAW electrode to combat & extend the life of components subjected to severe hi-temperature Abrasion up to 800 C of the mineral heat. Highly alloyed deposit retains the hardness at elevated temperature. The rich micro-carbides resists extensively the severe abrasion/erosion & moderate impact.

Applications :

Major applications, that are subjected to intense high temperature abrasion/erosion, includes Cement Industry Clinker breaker hammers, hard facing areas of Pre-heater fans, Coke oven & Sinter handling areas in Steel plants, such as Sinter-deck, Sinter-breaker hammers and Grizzly / Grate-bars.

WELD METAL HARDNESS:

61 to 67 HRC (Two Layers on carbon steel)

58 to 63 HRC (Single layer on carbon steel)

Welding Technique :

The fatigued metal is to be removed before commencement of welding. Short arc with stringer bead is recommended. When higher thickness of deposit is required, use LoTherme-352 on Carbon steel and LoTherme 457 on Hadfield steel, as barrier layers. While pre- heat is required for higher carbon steel base metal, pre-heat should not be done on Hadfield steels. Re-dry electrodes to min. 200 C for one hour before use for optimum results.

Current Conditions : DC (+)