ANSI B16.9 1

[nuke1973]

Welded seam fittings are covered by ANSI B16.9 standards? Or they must be seamless?

 

[metengr]

If you review ASME/ANSI B16.9, this pertains to wrought butt welding fittings that could be welded or seamless. Under paragraph 5), Material, wrought fittings are covered under the following material specifications - ASTM A 234, A 403, A 420, A 815, B 361, B 363, and B 366. For example, Standard Specification ASTM A 420 deals with welded or seamless carbon or low alloy steel fittings.

 

[metengr]

Note; Standard Specification for Welded or Seamless carbon or low alloy steel fittings is A 234, not A 420.

 

[nuke1973]

Thank you very much metengr.

Your answer helped me too much.

nuke1973