soldering question??? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> General Rodding Tech
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-13-2008, 11:37 PM
Registered User
 
Last photo:
Join Date: Jul 2007
Location: norcal
Age: 59
Posts: 762
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
soldering question???

hi guys, can you solder aluminum and copper together? i would like to build some heater tubes by turning down some aluminum AN fittings and soldering them into the ends of copper pipe (like you would use for household plumbing). i just don't know if you can solder aluminum to copper, anybody have any idea??? thanks, techron

    Advertisement

Last edited by techron; 11-13-2008 at 11:43 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-14-2008, 12:09 AM
carsavvycook's Avatar
My 2 cents worth
 
Last photo:
Join Date: Sep 2007
Location: Lakeside, CA
Age: 58
Posts: 2,855
Wiki Edits: 3

Thanks: 2
Thanked 2 Times in 2 Posts
It can be done, that is the way the AN heater hoses connect to the copper heater core in the Blown '73 Corvette. Check my photo album, I believe there is a picture of the passenger side that might show them.

It just shows the AN fitting only, and no part of the copper tube. Sorry.

Last edited by carsavvycook; 11-14-2008 at 12:31 AM. Reason: addition
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-14-2008, 02:16 AM
Registered User
 
Last photo:
Join Date: Jul 2007
Location: norcal
Age: 59
Posts: 762
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
thanks carsavvy, i like your 73. i'm an old vette guy and am presently building a 64 restomod coupe. most car builders fall down in the wiring and plumbing area (my pet peeve). i've already built my own wiring harnesses to the front and offloaded the current to modern relays. the engine compartment wiring is completely hidden. i didn't look at your pics yet, but i'd like to know the details. is it a simple soldering job???
i was just going to eleminate the heater, but decided to keep it, i fliped it 180 degrees so i could attach heater hoses and run them through the fenderwells at the top of the fenderwell that's where the copper pipe comes in.. i want to have the AN fittings coming through the inner fenders attached to aeroquip fittings to the engine.

so, is soldering copper pipe to an aeroquip simple?? aparrenty you have done it.

where is oldred, he could probably answer this.

give me the spifics on soldering, i know copper to copper, but i don't know copper to aluminum.

by the way, where is lakeside, ca. ???
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-14-2008, 02:40 AM
carsavvycook's Avatar
My 2 cents worth
 
Last photo:
Join Date: Sep 2007
Location: Lakeside, CA
Age: 58
Posts: 2,855
Wiki Edits: 3

Thanks: 2
Thanked 2 Times in 2 Posts
I did not do the soldering, and can not give you any information as to what solder was used. I was there at the time 6 years ago, and don't recall what was used. I do remember it had a light silver look, but I was busy putting together the hoses.

I can tell you it can be done, and it has worked for 6 years now.

Like you asked, where is oldred when you need him most?

There is one picture that comes close to showing it, but it stops at the AN fitting.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-14-2008, 04:15 AM
carsavvycook's Avatar
My 2 cents worth
 
Last photo:
Join Date: Sep 2007
Location: Lakeside, CA
Age: 58
Posts: 2,855
Wiki Edits: 3

Thanks: 2
Thanked 2 Times in 2 Posts
Lakeside, is a suburb of San Diego, midway to the northeast side of the county, between the mountains, and the beach. It has that 'good home' country attitude I love.

I will make a call in the morning, and try to get a picture of those hose fittings.

Maybe by then we will hear from oldred.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-14-2008, 06:39 AM
bondo's Avatar
Member
 
Last photo:
Join Date: Nov 2002
Location: Chaumont Bay N.Y.
Posts: 960
Wiki Edits: 0

Thanks: 7
Thanked 15 Times in 15 Posts
Quote:
i just don't know if you can solder aluminum to copper,
Ayuh,.... That is Not possible....

If you use Steel fittings, Yes....
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-14-2008, 10:29 AM
Member
 
Last photo:
Join Date: Jan 2003
Location: tennessee
Posts: 5,915
Wiki Edits: 0

Thanks: 0
Thanked 7 Times in 7 Posts
Aluminum can be soldered (but not brazed) to most metals including Copper. At the moment I can not think of a specific solder that for sure works for this but I am thinking that Harris Al-Solder is for soldering Aluminum to dis-similar metals. Call your local welding supply and tell them what you are doing and have them recommend something they might have. This is not especially hard to do and does not require any high tech tools but you will need a Stainless steel brush that has NEVER been contaminated with Carbon steel, get a new one and don't use it for anything except cleaning the Aluminum.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 11-14-2008, 11:37 AM
Registered User
 

Last journal entry: More painting pics
Last photo:
Join Date: Feb 2007
Location: Ohio
Posts: 371
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
http://silfos.com/htmdocs/product_su...ion_guide.html

This site sells a solder that can be used to solder Aluminum to Copper. It also gives some useful tips on soldering/brazing in it's 'how to' section.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 11-14-2008, 11:51 AM
Member
 
Last photo:
Join Date: Jan 2003
Location: tennessee
Posts: 5,915
Wiki Edits: 0

Thanks: 0
Thanked 7 Times in 7 Posts
I did not want to mention it without checking first but even Advance Auto has a package of soldering/brazing rods of various types that I am almost certain contains a soldering alloy for dis-similar metals. A welding supply should have something on hand and it is a good possibility that it could also be found at a HVAC supply.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 11-14-2008, 12:53 PM
wildman1932's Avatar
Dave's hot Rod Shop
 
Join Date: May 2007
Location: Kansas City Mo.
Posts: 187
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
It sounds crazy---but a guy brought some solder to our shop and showed how it could be done. The materials are rare (hard to find), a little touchy to use, but can be done.
Dave
Daves Hot Rod Shop KC Mo
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 11-14-2008, 01:23 PM
Registered User
 
Last photo:
Join Date: Nov 2007
Location: decatur,al.
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i work for a major manufacturer. we use epoxy at all the copper to aluminum joints. heating aluminum tubing will make it weak behind the joint. if you like i will find out what kind it is. Jonathan
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 11-14-2008, 01:52 PM
Registered User
 
Last photo:
Join Date: Jul 2007
Location: norcal
Age: 59
Posts: 762
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
thanks jonathan, yes, if you could post what kind i would be interested to know. thanks-techron
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 11-14-2008, 03:30 PM
carsavvycook's Avatar
My 2 cents worth
 
Last photo:
Join Date: Sep 2007
Location: Lakeside, CA
Age: 58
Posts: 2,855
Wiki Edits: 3

Thanks: 2
Thanked 2 Times in 2 Posts
mcmastercarr.com has technical information for solder on page 3312. I believe you will need a 'fluxed' core solder. Just input 'solder' into their search box, and go to page 3312. It's interesting to read. I did not know there are that many different types of solder available.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 11-14-2008, 03:31 PM
Member
 
Last photo:
Join Date: Jan 2003
Location: tennessee
Posts: 5,915
Wiki Edits: 0

Thanks: 0
Thanked 7 Times in 7 Posts
Heating Aluminum tube to soldering temperatures should not be a problem. If welding or brazing Aluminum to Aluminum this might however be a concern.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 11-14-2008, 03:52 PM
carsavvycook's Avatar
My 2 cents worth
 
Last photo:
Join Date: Sep 2007
Location: Lakeside, CA
Age: 58
Posts: 2,855
Wiki Edits: 3

Thanks: 2
Thanked 2 Times in 2 Posts
The tube is 'copper', and the fitting is 'aluminum', do you recommend a flux solder?
Reply With Quote Quick reply to this message

Recent General Rodding Tech posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
383 stroker 73monte Engine 11 05-07-2014 09:08 AM
supercharger.... 73monte Engine 16 07-24-2010 11:27 AM
question about a previouse question elrod1030 Engine 6 03-10-2010 08:35 AM
Switching to 200R Tranny question Gundarak Transmission - Rearend 4 12-05-2003 09:00 PM
nitrous 69BiRd Engine 2 11-28-2003 11:33 PM


All times are GMT -6. The time now is 11:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.