API610 low temperature

[adula29]

Continuing. My question was referring to the requirements of ASME and API610. API610 refers to ASME VIII if we have low temperatures. I have not found any requirements for martensitic cast steels for example GX8CrNi12 (according to the European stendardów and recommended by API610 for pressure casings). What ASME sets for this type of cast steels it comes to Imact Test.
I found only for carbon steels and austenitic stainless steel

 

[adula29]

Please help.
I have a big problem with this material, and interpretation ASME in this case.

 

[adula29]

No replies?
If ASME doesn't say about High alloy steels it is true that for e.g. Chromium cast steel we use UG-84? But what with yield strength?
Test procedures, size, location, and orientation of the specimens should be the same as required in UG-84 hut what for Cv [J] - this same or lower?

 

[adula29]

Any suggestions?