Use of SA479 as a flange material

[ME231]

Have any of you had experiences making flanges out of SA479 material?
Does the code allow for it?
Thanks in advance!

 

[nickelkid]

Isn't the product form of SA-479 Bar?

 

[ME231]

yes it is

 

[Shmulik]

VIII-1 prohibits making hubbed flanges out of Rolled Bar Stock Material: App. 2-2 (d)(1): "Hubbed flanges may be machined from a hot rolled or forged billet or forged bar….."
App. 2-2 (d)(2): "Hubbed flanges [except as permitted at (1) above] shall not be machined from plate or bar stock material unless the material has been formed into a ring……"

thread794-206784

 

[ME231]

Wonder why ASME prevents use of annealed material for making flanges. It seems only hot-rolled or forgings are permissible. If one were to use the lower strength of annealed material in one's designs, why does ASME prevent one from using it??? Strange!