HEAT TREATMENT PER UHA-44

[FSB01]

We have a 3/4" thk plate that we are rolling to 16" OD. material is SS 304. Per UHA 44 and strain is about 5%, and UHA 44 table is listing 304 material to be good up to 20% of strain.
Everything looks OK, however, my problem is design temperature of 250°C. UHA-44 table is referring to temperatures above 580°C. Am I missing something?

 

[SnTMan]

FSB01, what makes you think you are missing something?

Regards,

Mike

 

[FSB01]

Well, it is UHA 44 Table. Design temperature range listed in the table is above 580°C. My design temp. is quite lower. Is there some other reference for cold forming of SS 304?

 

[SnTMan]

FSB01, you are not required to stress relieve. You are not prohibited from it either.

Regards,

Mike