Welding CA40 fiiting to Carbon steel

[pingmi]

Hi,
I need to weld a fitting made up of CA-40 (Martensitic stainless steel) material to carbon steel (A106) pipeline. The fitting end connection size is 25NB Socket Weldable.

I’m looking for the advice on the following:
• Welding consumables (SMAW)
• Recommended Preheat Temperatures
• Recommended PWHT procedure
• Any other Do’s and don’ts

Thanks in advance.

 

[blacksmith37]

Braze should work,I doubt it meets any code.

 

[pingmi]

blacksmith,

Thanks for your response.
Brazing won't be acceptable in this case and welding process is mandatory.