Sunday, 1 March 2015

Which electrodes are very susceptible to causing porosity in the deposited welds if long arc employed?


  1. Basic
  2. Cellulosic
  3. Rutile
  4. None of the above

2 comments:

  1. Of course Basic because basic ( have the lowest level of hydrogen (less than 5 ml/100 g of weld metal). Need Careful control of baking and/or issuing of electrodes is essential to maintain low hydrogen status and avoid risk of cracking.

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