Wednesday, June 9, 2010

[MW:5494] Difference between ASTM and API pipes

Hi,
 
Any body can tell what is major differences between ASTM and API pipes.  Whay we can not use A 106 Gr.B in  place of API 5L Gr. B.  Why ASTM spec. pipes are not used for pipe lines.  Is there any supply conditions are diffrerent or test required are different.
 
please share your ideas.
 
Regards
 
N.V. PRASAD
Welding engineer, Velosi

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