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  1. jessecwi

    Root Cracking in carbon steel buttweld

    after replacing the flange, new 6010 electrodes ,the welder even got another welding machine. as he was swapping leads out he realized his ground was loose. so apparantly this may have been the root cause. we had no problems after all of this was done. the weld was pt'd all the way out and x...
  2. jessecwi

    Root Cracking in carbon steel buttweld

    I am having issues with the root cracking in sa 105 flange buttweld, 14" schedule 80,we welded root,ground root and pt root and cracks are showing up,we have preheated it and are still having issues.the original weld was welded at our fabrication facility with saw process, and we have had to cut...
  3. jessecwi

    Pre Heat Maintenace

    Thanks for the info, also the only reason the preheat is required on this particular weld application is because the flanges are 2 1/4 chrome overlayed with 347,we are just building up the original 347 overlay prior to refacing.
  4. jessecwi

    Pre Heat Maintenace

    Is preheat maintenance an essestial variable when you are not exceding the maximum interpass temperature? My GTAW P8 WPS states in QW-403 60 degree min preheat temp / 350 degree max interpass temp / preheat maintenance none. we will be welding 347ss overlay on existing 347ss overlay to build...

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