Acceptable filler for alloy 20 Stainless Steel

• May 19, 2011

• #2

metengr

Materials

Oct 2, 2003

15,478

US

Use SFA 5.14 ERNiCrMo-9

 

Upvote 0 Downvote

• May 19, 2011

• #3

stanweld

Materials

May 9, 2003

2,906

US

The "best" is somewhat subjective. Least cost? Most corrosion resistant?

We use E/ER320LR, E/ERNiCrMo-3 and other more corrosion resistant Nickel base filler metals; e.g., E/ERNiCrMo-4, etc.

 

Upvote 0 Downvote

• May 21, 2011

• #4

AndyVictor

Mechanical

Feb 4, 2011

25

AE

What about ER 320LR? This is the recommended filler wire by some manufacturers?

Andy

 

Upvote 0 Downvote

• May 22, 2011

• #5

metengr

Materials

Oct 2, 2003

15,478

US

Yes, this could be used. What is the service application of the 20Cb-3 stainless steel?

 

Upvote 0 Downvote

• May 23, 2011

• #6

EdStainless

Materials

May 20, 2004

16,355

Waukesha WI USA

If they are using 20 them I assume that they are after acid resistance.
I which case you had better use a stabilized 20 chemistry for filler.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

Upvote 0 Downvote

• May 23, 2011

• #7

stanweld

Materials

May 9, 2003

2,906

US

Welds made with ER320 are highly susceptible to hot cracking. the use of ER320LR greatly minimizes its potential.

 

Upvote 0 Downvote

• May 24, 2011

• #8

Guest102023

Materials

Feb 11, 2010

1,523

CA

I concur with stanweld; welding with 320 can be tricky because things need to be kept ultra-clean to avoid hot cracking. It might be easier to resort to some of the Ni alloys already posted above.

 

Upvote 0 Downvote

• May 26, 2011

• #9

weldtek

Materials

Feb 12, 2005

897

US

In my experience cleanliness is critical when welding any of the Ni alloys. ER320LR should be fine from a welding standpoint. We use it regularly. Use the same good practices you would use for any Ni alloys and you'll be fine.

 

Upvote 0 Downvote