Stainless steel cylinder. But what type of stainless?

[7milesup]

I purchased this piece of stainless steel on an auction, somewhat of a whim of a purchase. The wife asked me what I was going to use it for and had to stumble around for and answer.... Stainless steel rolling pin??!

Anyhow, it is stainless. Non magnetic. Very heavy. The cylinder is 5" in diameter and 24" long. Cannot lift it by myself.

It has this number stamped in it. I have searched some on google, but come up with nothing. Could be a job number or ?? Maybe it does mean something about the makeup of the metal.
Any ideas to figure out what this is?

 

[matthewsx]

SAE steel grades - Wikipedia

en.wikipedia.org

650 through 653: Austenitic steels strengthened by hot/cold work.

My guess is some kind of proprietary alloy, probably really high grade stuff....


John

 

[Cadillac]

Looks like a cannon barrel to me

 

[7milesup]

650 through 653: Austenitic steels strengthened by hot/cold work.

My guess is some kind of proprietary alloy, probably really high grade stuff....
John

I too am thinking that it might be some really high grade stuff. It just "looks" different than most normal stainless that I have seen.

 

[7milesup]

Looks like a cannon barrel to me

Well, if I bored out the middle it could be. It is solid at this point.
I paid $50 for this. If I knew for sure what it was I would cut off discs and sell it on ebay.

 

[matthewsx]

Where did it come from, that might give a clue. Probably something used in the biomedical field or maybe military?

John

 

[7milesup]

I just looked at my invoice. Came from QA1 Precision Products in Lakeville, MN. Turns out they are high performance suspension and driveline specialists.

https://www.qa1.net/

Don't know what they would use a 5" diameter piece of stainless for.

 

[matthewsx]

I can see several possibilities on this page.

OEM & Industrial Motion Control Systems

QA1 develops and manufactures OEM motion control systems, industrial motion control systems and motion control components for a wide range of industries.

www.qa1.net

But apparently they didn't need the piece you have Could be a drop from a very expensive driveshaft.


John

 

[RJSakowski]

I have similar dilemma. I have about a 1,000 lbs of 1/4" x 5/8" austentic stainless of unknown composition. If I could identify the alloy , I would offer it for sale. I am fairly certain it isn't 303 because of the way it machines. Past that, it is color coded pink or salmon but from what I have seen, color codes are manufacturer specific.

 

[RJSakowski]

A wild idea but why not give Motion Control Systems a call. A piece of stainless that size is memorable and someone there may remember it.