Dear Sir,
Would like to know the Allowable Stress for the material ASTM A691-1.25 CR CL22 (Carbon Steel). I am working on Power Piping and the working temperature and pressure are 450 C and 0.4 bar.In the CAESAR input spreadsheet there is no allowable stress values available for the above mentioned material. I also searched in the CAESAR material database and allowable stress value (Cold and Hot) is not available. Can it be referred from B31.1 Power Piping Code book.
Thanks in advance for your help and support.
Regards,
SAM.

“In times of stress, be bold and valiant.”

It most certainly can.. Appendix A should to the trick.

Sam,
I remember this material is available in B31.3. most probably it will be available in B31.1 also. check out Table A-1. this material is having 1.25 cr, so you will get the allowable details in "Low and Intermediate Alloy steel" column of Table A-1.
Take the allowable values from code for your temp limit and make your own material data base in caesar for this material. procedure for making new material data base is already available in Caesar Help menu.