Weldability of 904L CRES 3

[ledon]

I have been tasked to write a welding procedure for 904L CRES. I have no experience with this grade. Does anyone know a Milspec or ASTM that this grade is manufactured to? My particular questions are welding parameters such as, preheat, filler, PWHT requirements.

 

[EdStainless]

What are you joining to? It self?
904L welds like any high alloy stainless.
Filler, I think that NiCrMo3 (385?) is a slightly over alloyed filler for this.
There are ASTM specs, B674 is a tubing spec. I don't recal the sheet/plate specs.

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm

 

[metengr]

This web site may be of help to you;

http://www.alleghenyludlum.com/ludlum/pages/products/xq/asp/G.16/qx/ProductLine.html

Download the file on 904L SS.

 

[metengr]

In addition, the Nickel Development Institute has a web site below that contains a free technical paper titled;
"Guidelines for the welded fabrication of nickel-containing stainless steels for corrosion resistant service"

http://www.nidi.org/

The paper above provides an excellent guidelines for welding of stainless steels including background information, welding processes, cleaning, weld joint design, suggested filler metal, etc.

 

[ledon]

Thank you for the valuable info. It has given me a direction to start my research.