Carbon steel schedule to be used

[qaengineer1969]

Can anybody help me and tell me what schedule Carbon Steel Pipe I need to use on High Pressure Air Lines at 40 Bar

 

[TGS4]

Depends on the Code of Construction, diameter, grade of carbon steel, etc.

Start with your Code of Construction. Follow that through.

 

[Duwe6]

Sch 40 will work, but I would use Sch 80 up to about 4"NPS. Then I would do an engineering eval using the code of construction. If no c-of-c is mandated, use ASME B31.3. It is excellent.