Storing and Re-drying Low Hydrogen Electrodes

We have all heard about the dangers of hydrogen induced cracking.  Hydrogen induced cracking, or cold cracking, is caused when three conditions are present. First, we need a susceptible microstructure (base material related). Second, we need a high level of restraint (design related). And third, we need a threshold level of hydrogen (fabrication related).   Most […]

Mig Welding With S3 vs S6 Wire

Is ER70S-3 even necessary anymore?

One of the most frequently asked questions is if there is a valid reason to use an ER70S-3 (S3) mig wire versus the more commonly used ER70S-6 (S6) wire.    Both wires belong to AWS Specification A5.18 and can be used interchangeably in most applications because they provide almost identical mechanical properties.  There is subtle difference between the two […]