I rarely post here, but I always thank to have this forum which is full of valuable information and advices.

Today I'm posting to ask an advice on a procedure to carry out stress analysis job for a Russian refinery project with CAESAR-II.

In this project, some pipes are under ASTM and the others under GOST code.

Q1 : Is it permitted to do the analysis of ASTM pipes under B31.3 using CAESAR-II?
Q2 : Is there any way to do the analysis of GOST pipes with CAESAR-II?

Q1: Typically, ASTM refers to material properties, not a piping code. You are free to change or update material properties in CAESAR II. If you do that, make sure you document that fact. The stress computations performed to B31.3 (or any other Code) simply use the material data from your input.

Q2: CAESAR II doesn't incorporate any GOST Codes or Standards at this time. Can you advise exactly which one(s) you are interested in?

Q1 : Well understood. Thank you.
Q2 : By GOST codes, I meant especially "GOST 32388-2013 Process piping systems" and "SNiP 2.05.06-85 Gas & oil transmission and distribution piping systems". If CAESAR-II does not incorporate these codes, could you advice how I could carry out stress analysis?

See
http://www.truboprovod.ru/en/cad/soft/start.shtml

Hi, mariog,
I have also seen the website introducing "START" software.
I would like to ask a few questions ;

Q1. Is it right to understnad that I should use START software, instead of CAESAR-II, to calculate piping stress to meet russian codes and regulations?

Q2. If agreed between client and contractor, is it allowed to analysis piping stress using CAESAR-II with B31.3 code equations and incorporating material properties and allowable stresses of GOST code?

The only advice I can give you is to try to make things crystal clear into your Contract. As a part of this contract, you may be required to enter into a "partnership" with one of Russian Institutes.

Hi,

recently we had done pipe stress analysis project with one of our Russian clients, but at the time of agreement it was clearly mentioned that pipe stress analysis will be performed using ASME B 31.3 code and it was agreed that the local institute (from Russia) will perform a check on our calculation (as per GOST STD).
So far we did not received any comment of our analysis.

So Idea is to have a proper communication at the start of the project to clear the air.

Regards,
R.K.

Dear mariog and RK,

Thank you for your advices.
Now I am contacting the client regarding this issue.
I proposed that even GOST material is used, the analysis will be done using CAESAR-II and B31.3, including review by a local institute.

My new questions are :
1. How can I verify flange loadings, if it is GOST standard flange?
2. Where can I get a database of material properties (elastic modulus, allowable stress) of GOST material to be imported into CAESAR-II? Is it usually available from local institute?

I would appreciate it if someone could advice.

Hi Grant,

1. Can you be more specific about flange loading?
2. Ask from client regarding the material grade e.g. 03Х17Н14М3 can be used as 316L etc.

This data will be available with them.

Regards,
R.K.

Hi R.K.,

Thank you for your advice.

1. I asked if there were any methods approved by GOST in evaluating flange loadings, such as BPV section III, section III or equivalent pressure method. I will ask this query to russian engineering firms.
2. I will consult the client or russian engineering firms.

Regards,
Grant75