QCJT
Industrial
- Feb 16, 2011
- 52
Gent's is it allowed to heat straighten the piping as per B 31.3? Production uses heat extensively to align the joints and we are talking about 304H steel 1.5" sch.40 size piping (pig tails). It's GTAW welding, so they simply use the rod tip to heat the existing weld and sometimes the joint comes into position without additional force applied, just due to thermal shrinkage but sometimes they also apply some force. Is this allowed by code?
