Welding electrodes used in Railway track ( main line, points & crossing)
Only H3 series of electrodes are approved by RDSO for reconditioning of points and crossing. List of approved sources for supply of electrodes is issued by RDSO periodically. Current list of approved sources of electrodes may be obtained from website of RDSO. Different electrodes are expected to provide different traffic carrying capacity. Following traffic carrying capacity have been stipulated
a) H3 class to achieve minimum service life of 15GMT.
b) H3A class to achieve minimum service life of 25GMT.
c) H3B class to achieve minimum service life of 35GMT.
d) H3C class to achieve minimum service life of 50GMT.
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