Impact tests required on austenitic ferritic duplex steel
Impact tests required on austenitic ferritic duplex steel
(OP)
Are impact tests required on austenitic ferritic duplex steel,as attachment bracket plate of leg which essential to the structural integrity when weld to preesure part,when the MDMT is +32°F or colder, and the thickness limit of UHA-51(d)(3)(a) in Section VIII, Division 1 is exceeded? thks !





RE: Impact tests required on austenitic ferritic duplex steel
RE: Impact tests required on austenitic ferritic duplex steel
Regards,
Mike
RE: Impact tests required on austenitic ferritic duplex steel
RE: Impact tests required on austenitic ferritic duplex steel
Regards,
Mike
RE: Impact tests required on austenitic ferritic duplex steel
UHA-51(d)(3)(a) provides some exemptions from impact test for austenitic ferritic duplex. However, from your description of the material it is not exempt, as based on thickness and need structural integrity. Because it is not exempt, impact testing will be required per the main paragraph.
You may be able to exempt with UHA-51(g) as based on low calculated stress ratio.