Dear mr Richard

I am doing flange leakage analysis for A 694 F52 material in caesar.This is for ASME B31.8.I don't find the allowable stress value for the the material.The connecting pipe is API 5L Gr 52.Shall I take 52000PSI as allowable ?

regards

Sha.

I would recommend you use the allowable for the flange material. If necessary, contact the vendor you'll be acquiring the flange from and ask them for the data.

Dear Mr Richard

Can you tell me why the allowable value for this material not available in the caesar flange database.it is a pipeline(B31.8)flange( comes from pig receiever),I checked with B16.5, this material is not coming under the group.I refered the ASTM A694 standard, the yield strenght is given as 52ksi for A694 F52.I am not very sure what allowable value to be fed into Ceasar.Do I have to follow B31.8 to find the allowable value.I hope that caesar database has only B16.5 group material stress value. And also why we have to approach the vendor to get the value ? And this standard value should be refered from the respective standard only and not from the vendor ? . if I am wrong ,please advice me.

regards

Sha.

The CAESAR II material databases don't contain every material from every Code. We took what we thought were the most commonly used materials and put those in the databases. If you need to use a material that isn't in one of our databases, you can (usually) use our "Material Database Editor" and add what you need. (Note I said "usually", there are some database that we haven't developed an Editor for. In this instance, you will have to manually define the material properties in the input.)

Contacting your vendor is necessary if you can't find the data you need in the applicable Code. You should also verify your data with your "Materials Specialist", to make sure everyone along the way has made the proper decisions and selections.

Dear Mr Richard,

Thanks for the reply

regards

Sha.