LOW TEMPERATURE SERVICE WELDING PROCEDURES

[cindys001]

CAN ANYONE PROVIDE A WELDING PROCEDURE WITH NO PRE-HEAT TREATMENT FOR WELDING PIPE FOR COLD (LOW) TEMPERATURE SERVICE?
THE PIPE MATERIAL WILL BE API 5L X52 OR DUPLEX SS.

 

[Rich2001]

thread794-99172 has some good information on welding duplex stainless steel. Also review the information on The Nickel Institute website

http://www.nidi.org

What is the wall thickness and expected ambient low temperature?

Some information from Lincoln Electric

http://www.lincolnelectric.com/knowledge/articles/content/hypipe4.asp

 

[sayee1]

Duplex does not require preheat in any case, air dryers needed only to expel mositure. API 5L x52 with no preheat is regular welding. What are the thicknesses involved, the process/consumables planned, the grade of the duplex, the temperature for the LOW TEMPERATURE SERVICE. Please provide more details.

Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
If it moves, train it...if it doesn't move, calibrate it...if it isn't written down, it never happened!