It depends on the Applicable code. Snap shot of ASME B31.3 given below.
Refer ASME B31.3, Table 341.3.2 for the type of service
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677
On Thursday, February 1, 2018, 9:55:37 AM GMT+4, 'Sankaran Sp' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear Friend,
Thanks for your reply,
My doubt is How much height of weld metal can be allowed as inner penetration?since inner penetration clearly seen in RT film and reported, but end client is asking acceptable limit. Can you give?
Regards,
Sankaran.SP
Welding & Metallurgy expert
Cell no: 9486409307
On Wednesday 31 January 2018, 5:31:06 PM IST, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:
There are lot of Factors involved in Radiography to determine the Density Variation for the ID penetration depth. Moreover you use a Double wall viewing and it is very difficult to determine.
Other methods include
1. Boroscopy
2. Ball run Test. A steel ball with the required diameter shall be passed through the tubes and determine the depth of penetration.
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677
On Wednesday, January 31, 2018, 2:52:31 PM GMT+4, 'Sankaran Sp' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear Experts,
During pipe to pipe welding by single V butt joint by GTAW process (example : 1" XXS P91 pipe), there is a weld reinforcement over the groove and maintained 2 to3 mm of height, such a way ID penetration is also there. How much of height ID penetration is allowed? which is to be checked by RT exam. Kindly clarify and give me any supporting/ document reference.
Regards,
Sankaran.SP
Welding & Metallurgy expert
Coimbatore, India
https://materials-welding.blogspot.com/
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