Weld filler rod suggestions

11Bravo · Friday at 1:12 PM

Hello All,
Here is the project, a side lock with a sear that lost its nose, about 1/8" broke off. I know I could make a new sear but being a long time Tig welder I thought to build up the end with weld material and see if it works. I can't decide which filler metal I should try, 70S which is steel or 309 Stainless or what I was leaning towards Silicon Bronze (no heat treating). Any thoughts
Wayne

BJHabermehl · Friday at 2:43 PM

11Bravo said:
Hello All,
Here is the project, a side lock with a sear that lost its nose, about 1/8" broke off. I know I could make a new sear but being a long time Tig welder I thought to build up the end with weld material and see if it works. I can't decide which filler metal I should try, 70S which is steel or 309 Stainless or what I was leaning towards Silicon Bronze (no heat treating). Any thoughts
Wayne

Your best bet would be steel, after shaping the welded tip case hardening would be necessary

PhDBrewer · Friday at 7:18 PM

I have struggled with the same situation.
I know I can add hardenable metal to the sear nose or other parts with a TIG. However, nothing for filler is available but mild steel. Therefore, case hardening the part afterwards is the current solution.
I played around with the idea of making filler rod from 1075 or similar metal. Still might try that route at some point. Many antique parts are in need of a little filler to build up a worn area.
Please let me know what you discover.
William

Kansas Kid · Friday at 9:59 PM

4130 rod or hastalloy W.

PhDBrewer · Friday at 11:22 PM

What is 4130 rod? I have 4130 metal but no filler rod as such.
Or hastalloy?
For filler rod I found this blurb....
<Quote>
ER80S-2 is actually the closest match for tensile strength and required ductility for welding 4130. ER70S-2 is most commonly used and totally acceptable. Some weld procedures require 4130 filler, however, Using 4130 filler REQUIRES annealing post weld.
< end >
... and I have not an expert but willing to learn.

Thanks.

11Bravo · Saturday at 9:46 AM

Here is an interesting read about hard facing.
https://materialwelding.com/welding-rods-for-hardfacing/
Reading this jogged my memory to maybe 40 years ago, I built up a worn part on my 47 Indian M/C with Stellite weld material. I rode that bike for many years and the repair never failed.

Weld filler rod suggestions

Help Support Muzzleloading Forum:

11Bravo

40 Cal

BJHabermehl

40 Cal

PhDBrewer

Buckskin Baxter

Kansas Kid

32 Cal.

PhDBrewer

Buckskin Baxter

11Bravo

40 Cal

Similar threads

Latest posts

Weld filler rod suggestions

Help Support Muzzleloading Forum:

11Bravo

40 Cal

BJHabermehl

40 Cal

PhDBrewer

Buckskin Baxter

Kansas Kid

32 Cal.

PhDBrewer

Buckskin Baxter

11Bravo

40 Cal

Similar threads

Latest posts

Join the conversation!

Join today and get all the highlights of this community direct to your inbox. It's FREE!