Yes, depends on, if you think about piping or steel structure – and also the code you are using.
In Europe, all piping under PED (Pressure Equipment Directive, 97/23/EC) shall as a minimum have impact energy 27 J at the minimum design temperature of the piping. This is also implemented in the European piping code, EN 13480 and the European pressure vessel code, EN 13445.
For structural steel in accordance with Eurocode 3 (EN 1993), the basic requirement is stated in EN 1993-1-10. Typically it will be required to verify 27 J at min. design temperature, but the actual test temperature/energy is depending on the thickness of the material. A table in EN 1993-1-10 states for EN 10025 steels the actual conditions (temperature and energy) and to what temperatures they may be used, depending on the thickness of the steel plate or section/profile.
regards
Kristian
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sudhakar kuppuswamy
Sent: 16. juli 2011 20:04
To: materials-welding@googlegroups.com
Cc: pgoswami@quickclic.net
Subject: Re: [MW:11771] CVN Energy
Dear Harish,
Based on the international code 7standard, for a particular standards material there will be a value of energy to be absorbed and temperature at which the CVN test has to be done. refer the tables given in the required codes ,in case of ASME materials refer SEC 2 PART A and B for base material and PART C for welding consumables. You will get any idea.
Since impact properties of a material depends on chemical composition and final Heat treatment carried out during manufacturing, from my knowledge I don’t think there will be any specific formula to correlate . Generally CVN test is carried out on trial and error basis in manufactures industries .
On Sat, Jul 16, 2011 at 10:18 PM, Harish Kannepalli <harishkannepalli@gmail.com> wrote:
Dear Sir,
I have a very basic doubt since long time, posted in this forum also. How do we get the minimum energy requirements for CVN tests at a particular temperature? Is there any mathematical calculation to get this energy?
--
regards,
Harish.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
With regards,
Sudhakar.k
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment