Dear experts,
This is to inform u that we are manufacturer of Boiler components in India. In which one item called Flow nozzle made of P91 and SS316L as shown sketch attached.
your valuable comments are required on the following
1. Is this joint details acceptable for construction.
2.we had made 2 procedures.
A). P91 was buttered with ER NiCr3 and PWHT
After PWHT, these Buttered piece was joined with SS316 with Filler wire ERNiCr3.
B) P91 and SS316 was directly welded with ERNiCr3 for Root and Hot pass
Then balance welding was done by E9018-B9 and PWHT.
In this we have faced with problem in procedure A) (Lack of fusion) and failed in service
your inputs are highly appreciated and thanks for ur cooperation.
THANKS & BEST REGARDS,
KG.PANDITHAN, IWE, AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349
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.
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