Plating 1010 Strip Steel

I'd go with Zn. Refer to MIL-STD 889B.

Good luck.

Steel hinges and rivets?

No?

The other leg of the hinge attaches to...?

The primary part is 1010 steel, the hinge and rivets are aluminum.

1010 Hard 1 parts and alum hinges and rivets. This I gleaned from your original post. These are the components you must use?

My question should have read "Could the hinges and rivets be steel?" Would this not eliminate your galvanic corrosion concern?

I have to use this combination due to limitations in my assembly methods and cutting the piano hinges. This is basically designed around what I have to work with.

Thanks,

Fair enough.

If lynlynch told me zinc for the barrier coat, I would not hesitate to take that to the bank. (unless Milo offers different advice)

Two votes for Zn. GA for lynlynch.

Galvanic corrosion and it's effects on metals depends on the storage/operating environment.

For a thorough understanding of the phenomenon you should pull up a copy of the specification I referenced earlier.

Humidity is the enemy.

Good Luck.

_{Thanks Doorman.}

thanks

Am I correct that you are using an aluminum piano hinge?

And what is the hinge pin material?

Look at it this way, what does it take to make a battery?

Milo can explain it in clear language. He's smart.

The pin is steel.

So, now the question is do you know if the hinge does well outdoors? Does the unprotected pin cause corrosion?

I don't think plating the pin will be an option. Plating will wear through in some areas.

Good luck.

Good morning Lynlnch,

Thanks for your interest. The assembly will be used indoors, on conveyors. The hinge will be used only one time, to open up to place the coupler over the shaft during installation. After installation, the mating surfaces of each end of the copler acutally holds everything together. I will go with the zinc, with a heat treat post process. Thanks,

David

I hope it works out well for you.

Cheers.

Thermal ( flame ) spray coating of molten aluminum particles applied on steel part after thorough surface cleaning by grit blasting appears best solution. Cleaning and grit blasting are important for substrate preparation to provides a more chemically and physically active surface needed for good bonding. The hinge attachment could be done after thermal spray coating.

This metallizing process is a popular surface protection process of aviation welded steel components as it neatly avoids pitfalls commonly associated with electro plating.

Hi dgibson, While i agree with lynlynch & others about Zn Plating of Steel parts to fight corrosion. Just a word of caution against Hydrogen Embrittlememt. If you google search on this Topic you will understand the importance of what to after plating. Steel becomes brittle & fracture following exposure to Hydrogen. This is the result of unintentional introduction of hydrogen into suceptible hardened steel during plating ( Zn or Ni ). We generally adopt heating the plated parts in a furnace to a temperature of say 350 to 400 deg.celsius, holding the parts for 2 to 3 hours in the furnace within 4 hrs of plating. Good luck !! Rangasamy

When I used to work at a trailer company my job was to start the trailers on the assembly line. Anytime aluminum was installed against steel no matter if painted or not we would tape one edge with a clear plastic tape to protect the aluminum. The tape was clear shipping tape and it was not special in any way, it just gave a non conductive layer between the two different metals. I was told without the tape the aluminum would wear/corrode through in a few months. I assume this damage is caused from galvanic corrosion and from the steel being harder than the aluminum.