Welding in Cold Weather condition
Welding in Cold Weather condition
(OP)
Hello All,
Our client is connecting two screw piles by welding a collar (sleeve) into it. However they were doing this welding when outside temperature was around -30 0C below.
After our repeated screaming, contractor began to weld in a covered tent. Can anyone tell me where I can find answers to following questions;
1. Does the contractor requires to preheat the weld area? if so what temperature?
2. Does the inter-pass temperature has to be high? what temperature?
3. Does the contractor requires to use a blanket to wrap up weld area? at what temperature he has to cover with a blanket and remove?
4. What is the minimum temperature that welding cannot be done?
Thanks in advance.
Our client is connecting two screw piles by welding a collar (sleeve) into it. However they were doing this welding when outside temperature was around -30 0C below.
After our repeated screaming, contractor began to weld in a covered tent. Can anyone tell me where I can find answers to following questions;
1. Does the contractor requires to preheat the weld area? if so what temperature?
2. Does the inter-pass temperature has to be high? what temperature?
3. Does the contractor requires to use a blanket to wrap up weld area? at what temperature he has to cover with a blanket and remove?
4. What is the minimum temperature that welding cannot be done?
Thanks in advance.





RE: Welding in Cold Weather condition
2. See 1. above.
3. See 1. above.
4. See 1. above.
The Contractor must make a sound weld. How he does it is up to him and the Contract & Code requirements.
RE: Welding in Cold Weather condition
I'd say, if he follows a WPS that is covered by a PQR, that's as good as it gets. If not, you're guessing at best for the achieved quality.
RE: Welding in Cold Weather condition
Codes will not tell you why the provision is included in the code, but they are typically based on lessons learned from "bad experiences."
Best regards - Al
RE: Welding in Cold Weather condition