Impact testing as per ASME B31.3

[Babur Khan]

Dear experts, 
Please clarify for impact test requirements of below variables.
Construction code ASME B31.3
Material A106 Gr. B
The thickness of Pipe. 17.48 mm
Temperature Limit 0^ F (-17.78^ C)
PWHT yes.
Table A-1 refers to curve B
Table 323.2.2A minimum Temperature without Impact Testing for CS showing under curve B 9^ F ( 12.8^ C).
My Question is for above case Impact testing for WPS qualification is required?  

Regards,

Muhammad Babur Khan Lashari
Sr. QA/QC Inspector (Welding)

(CSWIP 3.1 / CWI II From PWI) 

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[Sudhakar Kuppuswamy]

In my opinion, for the below stated conditions, as per ASME B31.3, Impact test is applicable. I.e. supplementary essential variables for ASME Section 09 becomes essential variables. 

And, the qualified WPS thickness shall be T/2 to T+6mm, i.e. 8.74 mm to 23.48 mm in your case.

Regards,

Sudhakar K

Welding Engineer 

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[pradip kumar Sil]

Can you pls give reference for qualification thickness in this case

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[Babur Khan]

Dear Mr. Kumar,

Base metal thickness is 3.73 to 17.48mm

Muhammad Babur Khan

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[Sudhakar Kuppuswamy]

You may please refer to Table 323.3.1 Impact Testing Requirements for Metals of ASME B31.3, Chapter 3.

Below is the snapshot, Refer A.5 

 

Regards,

Sudhakar K

Welding Engineer

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[حرف راز‎]

Dear sudhakar k,

very good reference but how can you relate this to WPS 

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[Khaled lamraoui]

Dear experts. I need your help please. I have sa 335 p91 as base material used in power plant does this require impact test for preparation of pQR or not? Ps: used for high temperature applications 600 degree. Can you please give a detailed explanation. Khaled lamraoui.

[anand gupta]

As per code for high temp impact test no need. 

Impact need for low temp only. 

Regards 

A p gupta 

Sent from Yahoo Mail on Android

On Fri, 2 Aug 2019 at 13:34, Khaled lamraoui

<eurl...@gmail.com> wrote:

Dear experts.    I need your help please.  I have sa 335 p91 as base material used in power plant does this require impact test for preparation of pQR or not?        Ps: used for high temperature applications 600 degree. Can you please give a detailed explanation.              Khaled lamraoui.         

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[Dinesh Somwanshi]

Dear sir,

Impact testing Its based on Mean design temperature cycle defined in drawing & If any project specs.

Thanks & Regards

DINESH VITTHAL SOMWANSHI

BACHELOR IN MECHANICAL ENGINEER

असो द्यावी दया तुमच्या लागतसे पाया.

*Pray for others, sometime, You might never need to pray for yourself
again.....*

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[Kannayeram Gnanapandithan]

Check consumables are impact tested at room temperature. That's enough

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