Derrick Lee Bradshaw Sr.

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Derrick Lee Bradshaw Sr.
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Physicial properties of Alumaloy: Aluminum repair rod

April 27, 2011

We have received a number of questions about the strength and durability of Alumaloy on our aluminum repair forum.  We understand that people have concerns and we would like to address them.  In an effort to do this we are going to provide some of the metallurgical specs of Alumaloy here as well as an explanation of what they mean to you.  You will note we might compare the properties of Alumaloy with the properties of aluminum.  We take pride in our product and stand behind it 100%.  It is our hope that this information will reinforce your confidence in our product and us.

Tensile strength: 39,000 PSI
That means 39,000 pounds per square inch is required to tear it apart the meld of two pieces joined with Alumaloy.

Compression strength: 60,000 to 75,000 PSI
A meld with Alumaloy can withstand between 60,000 and 75,000 pounds per square inch of crushing power before breaking apart.

Ductility: Good
When Alumaloy is melded to other aluminum it becomes just as easy to shape as the rest of the material it is bonded with.

Electrical conductivity: Good
Alumaloy has a relative electrical conductivity to aluminum so shouldn’t impede any electrical repairs it is put to.

Thermal Conductivity: Excellent
Heat transfer for Alumaloy is consistent with aluminum and will maintain thermal qualities present before the repair.

Corrosion penetration: Excellent
Aluminum is resistant to corrosion and Alumaloy shares that property. Melds made with it will not corrode over time unless the aluminum itself does.

Posted in Metal Working
  • […] Cleaning before using any of our products is very important.  I plan to do a three part how to guide explaining what is needed to be done for all three of our metal repairing products.  In some cases it may just need to be wiped with a cloth.  However, in most cases, it will require an abrasive or mechanical cleaning. This usually can be accomplished with the use of a wire brush or sandpaper.  Cleaning is very important particularly with How to guide: cleaning metals for repair part 2 cast iron repair with Castaloy and How to guide: cleaning metals for repair part 3 stainless steel repair with Steelaloy because it reduces the chances of future corrosion and helps make a more solid melding.  In this article I would like to talk about Alumaloy, a product used to repair aluminum.  More information can be found here about the physical properties of Alumaloy. […]

    10:55 am May 4, 2011 Reply
  • […] by TheAmericanGarage One of the products we use here on the show is an alloy called Alumaloy. The physical properties of this rod are very unique in that is has a lower melting point then the aluminum itself and so when it comes […]

    9:30 am October 5, 2011 Reply
  • Broncobill

    What temperature can it handle? I am looking to use on a cylinder head.  It is aircraft style opposed air cooled engine. Weld needed where bolt holds rocker arm. Maybe 450 f, but mostly around 250-350 f. Will this process hold up to those temperatures?
    Thanks Bill

    4:40 pm November 6, 2012 Reply
  • […] was also brought to our attention that the physical properties of Alumaloy have not been posted on our new upgraded website — so now it […]

    10:56 am May 31, 2017 Reply
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