DSAW and SAW Difference

[zacharialamsyah]

Hi... Can anybody explain the differences between DSAW (Double Submerged ar welding) and SAW(Double Submerged ar welding) from their uses and advantages, disadvantages..because I cannot distinguish clearly the differences between them.

Thank you and appreciate for your comment and answer

Regards
ZA

 

[metengr]

Here is a general reference;

http://www.ryerson.ca/~rravindr/Submerged Arc welding of Mild Steel Pipes - Amrish Patel.pdf

When it comes to DSAW versus SAW, it boils down to pipe OD, wall thickness and tolerances. DSAW is commonly specified for heavy wall, large diameter piping used in gas transmission and high pressure fluid systems.