SS for Formed Bar?

[winchengr]

Currently use a chrome plated formed bar which is 1/2" dia carbon steel with both ends bent down 90 degrees and flattened with holes in the turned down ends. The flattened end is approx. 1/4" thick. This is a tooled part and is chrome plated after forming.

Would like to try some type of SS bar that could be formed and used without plating.

What type and condition of SS would most likely withstand the bending and flattening and hopefully use the existing tooling?

Thanks,

 

[unclesyd]

Comeback with a little more information about the end use and the enviroment it will see.

From your description it is certainly possible. the information is needed to recommend a particular SS.

 

[winchengr]

Two of the bars are used to hold two castings apart and they see low loads so most any type of SS would be strong enough. They do not have to have high corrosion resistance as the castings are painted ductile iron and are not intended for use in a salt water atmosphere.

Low cost is also a desirable. Based on formability and relative cost, would you recommend 300, 400 or 17-4ph series SS?

The carbon steel requires a lot of processing: form, grind and chrome plate. I would like to be able to use SS without subsequent operations after forming.

 

[EdStainless]

You might look at either 410 or 201. They are about as low cost as you can get and they are still more or less stainless.

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Corrosion, every where, all the time.
Manage it or it will manage you.

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[winchengr]

I failed to mention the SS bars are bolted to aluminum castings. Could there be a problem with galvanic corrosion?
Would a particlar type of SS be better?

 

[unclesyd]

I would go with a 300 series SS, 302, 304, 316 based on corrosion resistance needed.

Since you mention low loads I would definitely look at using tubing. It will be easier to form and a lot cheaper

 

[EdStainless]

There can be accelerated corrosion of the Al where they are in contact, but you should have a similar problem now. Isolation washers should be enough to keep things together.

Tubing in 304 may or may not be less expensive than 201 bar. Of course 201 tubing would work, but it isn't readily available.

Make sure that the stainless parts are passivated after forming. Small amounts of iron on the surfaces from handling and tooling will lead to rust stains.

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm

 

[Pressed]

Why not just use aluminum tubingor bar?

It's unfortunate that there is some company out there that makes a part for a totally different applicatio that would work for yours.

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