Is there a product to bond aluminum to steel? I assume welding is out of the question. I've never heard of joining aluminum to steel like that. Are there other options to JB weld?

It must be high-heat resistant.

Thanks

the only way i have seen is via a bolt or rivet.
holds up very good for semi trailers. thousands of pounds, rough hwy's, hunderds of thousand's of miles.

welding???????
glueing???????

might check with some boat people????

Drilling and bolting is my last resort. Thanks for replying.

what are you doing? Hysol ea-9309 might work well for you.

Whats the application? There are some hi-tech epoxies out there that could probably work but they are going to be $$$.

from what i have read, it is possible to weld al to steel. it sounds like a pain in the ass. multiple steps are involved including tinning one of the materials. i have never seen it or heard of it being done.

again, what is the application?

You can get Al-CS transition pads that have been manufactured by explosion welding Al to CS. You are more likely to find them for marine applications but I have used the pads for pressure piping.

How hot will it be? What about Brazing? Is it structural? Another thing to factor in is that aluminum and steel expand and contract at different rates.

http://www.autobodysupply.net/duramix.htm

DURAMIX or SPEEDGRIP pretty crazy stuff.

I've brazed aluminum and steel together about a year ago, when I was bored. After a few tries I got it to look fairly decent, ad I bent the T-fillet almost flat before I started to see some cracks develop, so it seemed to be fairly strong. Just use very little heat and conectrate all of the heat on the steel and you should be fine, just practice a few times first.

Go to a automotive paint and body supplier and check out the epoxys this stuff is so strong that they took two pieses of sheet metal like 16ga and bonded it w/a 1/4" overlap and about 30-45 sec later w/a 10 ton porta power w/mo clamps hooked to each tried to pull apart and they ended up riping one of the sheets about an inch from where bonded this stuff is taking the place of welding panels back in body shops all over. you can even get this stuff from eastwood supply. however I think I should mention this as no one else has if you join aluminum and steel ie bolt,bond,rivet what ever you will get over time dissimular metal corosion it depends on your location more I guess though this is one reason IH 345 leak antifreeze around intake they are iron heads and block but alum gaskets, this may not bother you but I thought Id thow it out there anyway. Good Luck.

How hot will it be? What about Brazing? Is it structural? Another thing to factor in is that aluminum and steel expand and contract at different rates.

The part will be submerged in engine oil in the oil pan. The constant swings in temperature from 0 degrees in the winter to ?? degrees when the engine reaches operating temperature could really be a problem with two different metals.

I may try eliminating the steel altogether to avoid the expansion problems. Thanks for all the input so far.

Roy

The part will be submerged in engine oil in the oil pan. The constant swings in temperature from 0 degrees in the winter to ?? degrees when the engine reaches operating temperature could really be a problem with two different metals.

I may try eliminating the steel altogether to avoid the expansion problems. Thanks for all the input so far.

Roy

cyanopoxy works great as long as its not something structural. may be able to get more info from cool-chem..

http://www.lord.com/tabid/3399/Default.aspx

Go to a automotive paint and body supplier and check out the epoxys this stuff is so strong that they took two pieses of sheet metal like 16ga and bonded it w/a 1/4" overlap and about 30-45 sec later w/a 10 ton porta power w/mo clamps hooked to each tried to pull apart and they ended up riping one of the sheets about an inch from where bonded this stuff is taking the place of welding panels back in body shops all over.

3m makes a product for this I use all the time, it's really strong, possibly stronger than welding but you would have to call them and ask about about the dissimilar metals and exposure to solvents. I know that the very new high end bmws use a process called "rivet bonding" to attach the aluminum frame rails to the steel body. The glue insulates this and stops electrolosis.

There are some local enclosed trailer MFGs now that glue their aluminum trailers together. Say it is stronger than welding them as the properties of the aluminum are not affected.

We use this:
http://dot.etec.wwu.edu/fsae/images/Loctite%20H4500%20(Pic%202)_JPG.jpg

To bond steel to aluminum to steel. It has wide swings in temps and pressures. Works great.

Not cheap, 50.00 a tube and the gun is 175.00!

Product PDF:
http://tds.loctite.com/tds5/docs/SPDAH4500-EN.PDF

http://www.belzona.com

This stuff is the Alpha and Omega. It cannot be created or destroyed. It is the miracle of the eternal polymer.

Case in point: We broke a shaft in a 60 H.P. air handler motor about ten years ago. This is a hospital, so down time is not an option. The crew that was here at the time repaired the shaft with this stuff. They forgot it, and it was still running when the motor was changed last year. If anybody can do it, they can. :eek:

http://www.belzona.com

This stuff is the Alpha and Omega. It cannot be created or destroyed. It is the miracle of the eternal polymer.

Case in point: We broke a shaft in a 60 H.P. air handler motor about ten years ago. This is a hospital, so down time is not an option. The crew that was here at the time repaired the shaft with this stuff. They forgot it, and it was still running when the motor was changed last year. If anybody can do it, they can. :eek:
they have a lot of products, and recommendation? any idea on price? retailers?

they have a lot of products, and recommendation? any idea on price? retailers?


You'll need to contact them. Everything they have is pretty specific to it's application. Not certain on retail availability. I'm thinking that it may need to be factory direct. We got it as a sample, and never used it for anything until that particular event. There's still some of it around, so we never checked on getting more. I'm sure they'd be glad to assist anyone that wants some. It's a great product. :D

You'll need to contact them. Everything they have is pretty specific to it's application. Not certain on retail availability. I'm thinking that it may need to be factory direct. We got it as a sample, and never used it for anything until that particular event. There's still some of it around, so we never checked on getting more. I'm sure they'd be glad to assist anyone that wants some. It's a great product. :D

I work at a coal fired power plant. We use belzona products to reline the coal pulverizers where the steel has been worn away! Very tough stuff! I don't know if they have anything that bonds aluminum to steel??? and its $$$$$.