1" Brass Ball ???????????

[robear]

1" Brass Ball ??

Found this 1" brass ball. Thought it was the top of a wrought iron fence, but it is 95.87% Copper, 2.19% iron (could be elevated due to the iron flakes on top), 1.21% Zinc and .66% lead.

Any ideas on what it is and used for. Found at an old house site in New Orleans, LA.

Thanks for looking,
Robear

 

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[robear]

Re: 1" Brass Ball ??

I used an Innov-X handheld XRF analyzer, gives you the elemental breakdown (chemistry) of an alloy.
robear

 

[Bigcypresshunter]

Re: 1" Brass Ball ??

Sounds like Red Brass or Bronze with the low zinc percentage. To enhance the machinability, lead is often added in concentrations of around 2%.
My guess is a ball from inside a one-way valve. Just a guess.

8) http://www.innovx.com/

 

[Tony in SC]

Re: 1" Brass Ball ??

Sounds like Red Brass or Bronze with the low zinc percentage. To enhance the machinability, lead is often added in concentrations of around 2%.
My guess is a ball from inside a one-way valve. Just a guess.

8) http://www.innovx.com/

Yep, checkball from old pump. Tony

 

[AU24K]

Re: 1" Brass Ball ??

I used an Innov-X handheld XRF analyzer, gives you the elemental breakdown (chemistry) of an alloy.
robear

Say, Friend,
What's one of them gizmos goin' for now-a-days?

Best,
Scott

 

[robear]

Re: 1" Brass Ball ??

Thank you all for the responses.

I have the luxury to use Innov-X Systems Delta XRF analyzer with my job. The list price starts at $27k.
comes in handy at our club meetings.