Material Substitution

[pacha2003]

Hi,
For the fabrication of low temp. material flanges, my company wants to substitute A350 LF2 by AISI 4130 forgings.
Is this acceptable?

Thanks to every one

 

[Goahead]

Which is the binding Code?

http://www.welding-advisers.com/

 

[metengr]

Flanges for any pressure/temperature service application should fall under ASME B16.5 regardless. I would suggest you review ASME B16.5 for an appropriate material substitution.

 

[pacha2003]

The flanges are API 6A type 6B (5K)