new filler for aluminum

nova_70_383 · Thu Dec 12, 2013 7:15 am

Does anyone know of an online sorce to buy the new er4943 filler??

gocirino · Thu Dec 12, 2013 12:37 pm

It's hard to get because Hobart has a patent on it. Most LWS will have to special order it with a 10 lb minimum. I just ordered 10lb - 3/32 as a compromise.

nova_70_383 · Thu Dec 12, 2013 5:11 pm

wow hobart.... so alcotec and the other companys wont be making 4943?

gocirino · Thu Dec 12, 2013 6:15 pm

That's correct. Unless Hobart Licenses it out and gets a royalty were all stuck. No competition = higher prices.

Antorcha · Sun Dec 15, 2013 11:52 am

Be patient. Those "evil" Chinese will solve the problem shortly.

RickV · Sun Dec 15, 2013 5:14 pm

What's special about er4943?

MinnesotaDave · Sun Dec 15, 2013 10:38 pm

RickV wrote:What's special about er4943?

Pretty interesting really, as I understand it, 4043 depends largely on dilution with the welded base metal for strength, 4943 overcomes that and does not rely on the dilution.
http://www.maxal.com/4943_datasheet.pdf

nova_70_383 · Mon Dec 16, 2013 11:38 pm

that is exactly right dave! by adding magnesium, they were able to create that. its much stronger then 4043, and will handle hi temps for extended time better then using 5356. shrink crack is great reduced (so they say). several areas i see this will be great for is welding 6061. another is welding 356 and 357 cast alloy. it is heat treatable, and that is important in castings that get heat treated. depending on the price, might be cheaper then the super high price of 4008 and 4009 filler normally used in 356 and 357.

Tue Dec 17, 2013 7:23 pm

nova_70_383 wrote:that is exactly right dave! by adding magnesium, they were able to create that. its much stronger then 4043, and will handle hi temps for extended time better then using 5356. shrink crack is great reduced (so they say). several areas i see this will be great for is welding 6061. another is welding 356 and 357 cast alloy. it is heat treatable, and that is important in castings that get heat treated. depending on the price, might be cheaper then the super high price of 4008 and 4009 filler normally used in 356 and 357.

I'm going to have to look into this, for sure! I've had trouble with 4043 on large 6061 structure for the shrink-crack problem, so I've been using 5356, and often require extended heats.

Steve S

MinnesotaDave · Tue Dec 17, 2013 9:26 pm

Otto Nobedder wrote:
nova_70_383 wrote:that is exactly right dave! by adding magnesium, they were able to create that. its much stronger then 4043, and will handle hi temps for extended time better then using 5356. shrink crack is great reduced (so they say). several areas i see this will be great for is welding 6061. another is welding 356 and 357 cast alloy. it is heat treatable, and that is important in castings that get heat treated. depending on the price, might be cheaper then the super high price of 4008 and 4009 filler normally used in 356 and 357.
I'm going to have to look into this, for sure! I've had trouble with 4043 on large 6061 structure for the shrink-crack problem, so I've been using 5356, and often require extended heats.

Steve S

I'm definitely going to try some - but I probably have 40 lbs of 4043 left to burn up too.

Better get my kid practicing tig more often to use it up

He sees better than me, has excellent coordination, and needs to make money this summer anyway

MinnesotaDave · Tue Dec 17, 2013 9:34 pm

Starting on Page 34 of this publication has excellent reading on 4943

http://files.aws.org/wj/2013/WJ_2013_07 ... 013_07.pdf

ajlskater1 · Wed Dec 18, 2013 4:23 am

Haha dave if your kid practices enough this summer send him my way I could use another guy who can actually wels aluminum lol.

MinnesotaDave · Wed Dec 18, 2013 10:32 am

ajlskater1 wrote:Haha dave if your kid practices enough this summer send him my way I could use another guy who can actually wels aluminum lol.

Sounds like you had a few that claimed to be "da man" but were actually "da myth"

ajlskater1 · Wed Dec 18, 2013 12:21 pm

Still do lol. 3 of them haha.

nova_70_383 · Mon Dec 23, 2013 5:22 pm

got a price from local weld store today. $7.20 a pound! totally do-able! $8.50 a pound for spool wire.

dirtmidget33 · Fri Feb 20, 2015 1:01 am

I was considering seeing about getting this to replace my 4043 on this year's spring order. I do not know If my LWS is carrying yet. Hopefully they have it or can get me 20lbs in not sure what there minimum order would be from Hobart. Prolly a pallet or something, hope not.

Now real reason I opened a dead thread.
Anyone have negative things to say about this filler. Only real negative I see is still the color match with anodizing it. I really wish I could replace both 4043 and 5356 with one but looks like this 4943 almost does. So what's your experiences with this stuff. Good or bad

pgk · Tue Feb 24, 2015 3:45 pm

Iv'e been out of the loop for a few years on the welding thing but have gotten the bug again. I just picked up 10lbs of 1/8th 4943 I'll let ya know how it works. I overheard my contact at the LWS mention that although Hobart's name is on the package that Alcotec is actually making it, I thought he said ITW had bought into Alcotec, not sure if there is any truth to that or not. ITW has grown into a huge company over the years.

Pete

gamble · Tue Feb 24, 2015 4:14 pm

I was going to order 10lbs of this. anyone going to want some? i dont need that much. i will probably do all 3/32

motox · Tue Feb 24, 2015 5:12 pm

gambler
i would be interested i a few pounds
craig

soutthpaw · Tue Feb 24, 2015 9:57 pm

Not sure if they ship, but Sims welding supply in Sylmar CA definitely stocks it.

SmartDave · Tue Feb 24, 2015 11:16 pm

Gamble I would be interested in some as well

Sent from my iPhone using Tapatalk