filler metal for dissimilar material welding

[Mohamedhassanmido]

How can I choose filler metal for any dissimilar material welding?

 

[XL83NL]

A little more info would help, like materials to be welded, design code, joint detail, etc...
In general API RP 582, para 6.2 together with Annex A provides a good reference to get started with.

There are however lotsof other references on this subject, like filler metal manufacturer documentation.

 

[berkshire]

Mohamedhassanmido (Materials)
First you have to identify the dissimilar metals.
B.E.

You are judged not by what you know, but by what you can do.

 

[wegm]

Mohamedhassanmido,
Please have a look at this link that suggests filler metals for similar and dissimilar materials welding: Filler metal, preheat and PWHT selection guide.
Moreover for some specific cases of dissimilar material welding you could have a look at these links:
Monel 400 (UNS N04400) to carbon steel welding
Filler metals for welding P-no:1 with P-no: 4 as per ASME IX
Dissimilar metal weld cracking in high temperature service
Dissimilar metal welding, SS to CS
regards,
wegm