Minimum Ambient Temperature
Minimum Ambient Temperature
(OP)
Hello,
On the subject of minimum ambient temperature allowed for welding, I found two different requirements.
1 - Minimum allowed 0F (-18C), for Bridges etc., see
http:// www.thruwa y.state.ny .us/busine ss/design- manual/app endixf.pdf
2 - Minimum allowed 32F (0C), for Piping, Pressure Vessels etc., see
http://www.wbdg.org/ccb/NASA/NASAASC/NS15055.pdf
Questions:
Is the above specified also in major Code requirements?
Are the requirements based on experience or on scientific inquiry?
Thanks,
Goahead
On the subject of minimum ambient temperature allowed for welding, I found two different requirements.
1 - Minimum allowed 0F (-18C), for Bridges etc., see
http://
2 - Minimum allowed 32F (0C), for Piping, Pressure Vessels etc., see
http://www.wbdg.org/ccb/NASA/NASAASC/NS15055.pdf
Questions:
Is the above specified also in major Code requirements?
Are the requirements based on experience or on scientific inquiry?
Thanks,
Goahead





RE: Minimum Ambient Temperature
http://homepage3.nifty.com/yurioka/exp.html
Minimum temperature and preheat requirements for welding on pressure retaining items are also referenced in the National Board Inspection Code (2004 Edition), Appendix B.