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Opslagtank, Thanks for your response. So this means that when I see mat'l no. format like 1.xxxx, it can be only one material in all european countries. On the other hand, mat'l no. in all EU countries have been harmonised into EN 10028/EN 13445-2. Do I understand it right?

Hi Experts, I have a little confuse with european material. Myself is just working with BS EN standard but the data I have is based DIN standard. The specified material is HII DIN 17175(1.0425). The question is "is number 1.0425 the same for all european material?" Can I apply this material...

Hi experts, Please anyone suggest me about API620, as I am quite new for this code. 1. How can I calculate nozzle neck thickness? According to the code, it specifies only min. thk of the neck but nowhere indicate the calculation method. 2. If the tank is subjected to partial vacuum, How can...

Hi experts, Please anyone suggest me about API620, as I am quite new for this code. 1. How can I calculate nozzle neck thickness? According to the code, it specifies only min. thk of the neck but nowhere indicate the calculation method. 2. If the tank is subjected to partial vacuum, How can...

Dear all I design a vessel using PVElite and feel like there is something not right. In Hydrostatic stress calculation, the test pressure shall be calculated from 1.3*MAWP*stress ratio according to UG-99b. In my case, a nozzle MAWP = 492 kPa while shell MAWP = 783 kPa and ellip head MAWP = 786...

Hi all Thanks for all useful responses. That's really help. Prasit

The vessel is not a stamped vessel. It is just design based on ASME Code. I know LDX 2101 is equivalent to S32101, however I can't find this material in the stress table. Thus, I have no idea which exteranl pressure chart shall be used for this material.

Hi Have anyone experienced designing an ASME vessel with unassigned material against external pressure? I am wandering which external pressure chart shall be used for unassigned material, especially LDX 2101. Please suggest.