EN 13445 external pressure calculations
EN 13445 external pressure calculations
(OP)
Hi,
I'm a little confused by the requirements of EN 13445 paragraphs 8.4.2 and 8.4.3. For shells made in non austenitic steel the nominal elastic limit is given by Rp0.2/T but for austenitic steel it's the same value divided by 1.25.
Could anyone help with an explanation as to why the nominal elastic limit for austenitic materials are 80% less than the equivalent non-austenitic material please?
Additionally for duplex/super duplex materials should I consider them as austenitic or non-austenitic?
Thanks in advance
I'm a little confused by the requirements of EN 13445 paragraphs 8.4.2 and 8.4.3. For shells made in non austenitic steel the nominal elastic limit is given by Rp0.2/T but for austenitic steel it's the same value divided by 1.25.
Could anyone help with an explanation as to why the nominal elastic limit for austenitic materials are 80% less than the equivalent non-austenitic material please?
Additionally for duplex/super duplex materials should I consider them as austenitic or non-austenitic?
Thanks in advance





RE: EN 13445 external pressure calculations
RE: EN 13445 external pressure calculations
I don't think so as EN 13445 paragraphs 8.4.2 and 8.4.3 refer to Rp0.2T for both CS and SS. SS seems to be taking a hit and I don't understand why.
RE: EN 13445 external pressure calculations
I can not help you there. The Dutch Rules for Pressure Vessels do not make a distinction.