Impact test requirement as per ASME SEC VIII Div I

[manoj john]

Dear members,

I have following points to be clarified, please give your expert advise.

1) I have to do Procedure Qualification test as per ASME Sec. IX on a test coupon having 8 mm thk with Impact test at  -38 degree C, after machining the specimen size may be reduced to 10 x 5 x 55 or 10 x 6 x 55, in this case at what temperature I have to do 'V' notch  impact test and what will be the acceptable toughness value  as per ASME SEC VIII Div. I.

2) If we do procedure qualification test with impact test on P1 Gr. 2 to P1 Gr. 2  materials can I use this procedure qualification to weld P1 Gr 2 to P1 to Gr. 1 as per ASME Sec. IX.

Thanks in advance 

Manoj

[RAJASEKARAN]

(1)       -49 C for (10x5), -46 C for (10x6) – Table UG 84.2

(2)       No

 

Raj

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
 
 

[manoj john]

Dear Mr.Raj

Thanks for reply, and what will be the acceptable value at these temperature.

With Regards.

Mano

[duc hoang]

Dear Mano

Please see UG-84(g)(5)

Regards

Dc

2012/9/25 manoj john <manoj...@gmail.com>

[sevak hiren]

Also check SA 370 Table 9

[duc hoang]

Dear Manoj

Attatched link for your information on charpy impact value for sub-size

http://www.twi.co.uk/technical-knowledge/faqs/structural-integrity-faqs/faq-how-do-charpy-values-determined-using-sub-size-specimens-relate-to-results-from-full-size-specimens/

Regards

Dc

[Sanjay Yadav]

Dear manoj
The values are proportional to the reduced area. Which means for 10x10 specimen required value is 20J than for 5x10 required value will be 10 J.
You can refer SA 370 for tabulated values