Dear Expert,
-- We are doing a weld joint with following base metal combination:
SM490 weld to railway (alloyed, high tensile material)
I used E7016 for this welding, after 4 hours, crack was observed on the weld toe,
however there is no crack on the weldment, thus I assume this is cold crack.
Crack was noticed on the railway material, not on SM490A material.
Welding condition:
Baking was done 300-350degC x 1hr
thickness: 16mm both material
Preheat: 200degC
Post heating: 250degC x 1hr
Can anyone advise how to solve this crack defects
Best regards,
Pravin Poornachandran
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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