Hello,
What could be a bolting grade which can be used at a design temperature of 350 [°C] complying with AD-2000.
I would need an "efficient" grade (high yield strength). Because we need to replace a bolt 12.9 by another grade on an existing vessel. So the room for bolt (studs) cannot be...
Hello,
Does anyone know if bolts class 12.9 can be used at a temperature of 350 [°C] with design code AD-2000?
As per first information, an inspector told us upper limit is 300 [°C].
Thanks a lot for your reply. If you can supply, I am interested in the reference you use to reply.
Regards
I am looking for a carbon steel similar to A516 grade 70 (plate) but in casting or forging or bar for a more massive part of the vessel.
Which nuance is common, and has same price and similar properties to A 516 grade 70?
Application is for pressure vessel.
Thanks for your help.
I have seen on a list that compere to a steel of reference AISI 304 or 316 machinibility is 45% (source engineering toolbox).
This value describes the ease with wich a steel can be machined.
For AISI 347 it is 36%. I wonder if this could cause some troubles to get surface roughness of Ra0.8 (we...
Does anyone know if it is allowed to use AISI 431 for pressure vessel with ASME VIII div 1? I cannot find this SS in the ASME II partD.
Is this alloy permitted by GB-150 (chinese pressure vessel design code)?
Thanks in advance for your help.
Hello,
We have a pressure vessel for a project that is working at low pressure (between - 0.3 bar and 0.1 bar) but at high temperature (design temperature is 1050 °C).
We have choosen the AISI 310 but vessel manufacturer can only design at max 800°C (with ASME VIII).
1/ Do you think this...
