Hello. I'm a new member and a newbie welder ( if you can call what I do welding ) !
My question is this: I found some Stainless Steel filler rod that was given to me a long time ago. It has no identifying marks on it, but it DOES attract a magnet pretty firmly. I had a note with it that said ER312, but I can't confirm. Any help would be greatly appreciated. Thank you in advance of any response.
Bob
- Otto Nobedder
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Are you quite sure it's unmarked?
Take it into direct sunlight, and look for a dot-matrix laser etch every twelve inches...
Steve S
Take it into direct sunlight, and look for a dot-matrix laser etch every twelve inches...
Steve S
exnailpounder
- exnailpounder
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As far as I am aware, none of the 300 series(austenetic) of stainless will attract a magnet. The 400 series (ferritic) will attract a magnet.Bobbiggs wrote:Hello. I'm a new member and a newbie welder ( if you can call what I do welding ) !
My question is this: I found some Stainless Steel filler rod that was given to me a long time ago. It has no identifying marks on it, but it DOES attract a magnet pretty firmly. I had a note with it that said ER312, but I can't confirm. Any help would be greatly appreciated. Thank you in advance of any response.
Bob
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
ER312 is used to weld cast alloys of similar composition and is used to weld dissimilar metals and weld overlays. This alloy has very high ferrite. When welding similar cast alloys, limit welding to two or three layers only.
Last edited by cherwolf on Sat Feb 11, 2017 2:35 pm, edited 1 time in total.
- LtBadd
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Bob, if it is not a secret, can you tell us, where are you going to use that rod? Guys here can suggest you a proper stuff, before that thing you gonna weld, cracks.Bobbiggs wrote:Thank you guys for all of the responses! I'll look at the rod again for markings, maybe my old eyes missed them. Otherwise, I'm going to ASSUME it's 312 for now. Thanks again
Bob
exnailpounder
- exnailpounder
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I learned something new today! I just welded a 312 threaded collar and it welded very nice. Is 312 the only alloy in the 300 series that will attract a magnet?LtBadd wrote:But 312 filler will YouTubeexnailpounder wrote:As far as I am aware, none of the 300 series(austenetic) of stainless will attract a magnet. The 400 series (ferritic) will attract a magnet.
Ifyoucantellmewhatthissaysiwillbuyyouabeer.
- LtBadd
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Not sure, never thought to do a magnet test on stainless fillerexnailpounder wrote:I learned something new today! I just welded a 312 threaded collar and it welded very nice. Is 312 the only alloy in the 300 series that will attract a magnet?LtBadd wrote:But 312 filler will YouTubeexnailpounder wrote:As far as I am aware, none of the 300 series(austenetic) of stainless will attract a magnet. The 400 series (ferritic) will attract a magnet.
Richard
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- WoodpeckerWelder
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I'm new to this welding thing but yesterday I got my first lesson in how important it is to know what you have in your hand.
So, I'm TIGing along, practicing with aluminum using 3/32 filler rods and 3/16 aluminum plate. Go to make a lap joint and just grab another rod and proceed to get all kinds of frustrated........ I had inadvertently grabbed a stainless filler rod that had gotten mixed in during cleanup and since I didn't take a sec and pay attention I was super confused about why it JUST WASN'T WORKING!
My bad... 
So, I'm TIGing along, practicing with aluminum using 3/32 filler rods and 3/16 aluminum plate. Go to make a lap joint and just grab another rod and proceed to get all kinds of frustrated........ I had inadvertently grabbed a stainless filler rod that had gotten mixed in during cleanup and since I didn't take a sec and pay attention I was super confused about why it JUST WASN'T WORKING!
My bad... "Why is there never time to do anything right the first time but always time to do it again?"
Yep... I've done that before... it's kinda hard to get a decent bead that way...WoodpeckerWelder wrote:I'm new to this welding thing but yesterday I got my first lesson in how important it is to know what you have in your hand.
So, I'm TIGing along, practicing with aluminum using 3/32 filler rods and 3/16 aluminum plate. Go to make a lap joint and just grab another rod and proceed to get all kinds of frustrated........ I had inadvertently grabbed a stainless filler rod that had gotten mixed in during cleanup and since I didn't take a sec and pay attention I was super confused about why it JUST WASN'T WORKING!
-Bear