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Blacksmithing and Metallurgy Hand-wrought manufacture of metal objects, extracting metals from their ores, or purifying metals and casting useful items from the metals.

Blacksmithing and Metallurgy

Babbitt or lead?


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  #1  
Old 12-20-2016, 03:47:18 PM
5hpGalloway 5hpGalloway is offline
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Default Babbitt or lead?

Is there a way to tell Babbitt from lead I have quite a bit of what I hope is Babbitt that I picked up and I have no idea what one it is any help would be great. Thank you
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Old 12-20-2016, 03:53:25 PM
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KeithW KeithW is offline
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Default Re: Babbitt or lead??

Specific gravity. Use a graduated container and scale to measure density. Babbit should be less dense.
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Old 12-20-2016, 05:47:47 PM
Rob Charles Rob Charles is offline
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Default Re: Babbitt or lead?

If you smack Babbitt with a hammer it usually is a lot harder than lead. Sometimes it even rings alittle depending on the alloy. Smack a chunk of known lead and compare. Rob
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Old 12-20-2016, 06:24:03 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: Babbitt or lead?

Any idea what the pieces were from? That might give a clue. There are several types of babbitt, and lord knows how many lead mixes. Any chance its Tin? I have no idea how to test accurately for any of these, but I bet there are ways.
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Old 12-20-2016, 06:56:29 PM
J.B. Castagnos J.B. Castagnos is offline
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Default Re: Babbitt or lead?

I've never used leaded Babbitt, but the high speed Babbitt is hard, breaks leaving a crystalline look, lead is more plastic. I'm sure the melting point would be diferent, you can look up the specs on Babbitt.
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Old 12-20-2016, 07:42:22 PM
Archaeometrist Archaeometrist is offline
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Default Re: Babbitt or lead?

If there is a junkyard nearby that has a portable XRF unit (rather common these days), they might zap it for you and tell you (roughly) what the composition is.

Alloys like Babbitt are generally based on standard mixtures (that have been used for many years), which means that they should be able to get close to the mix, if they have even moderately decent equipment.
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Old 12-20-2016, 08:57:20 PM
Mark Schneider Mark Schneider is offline
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Default Re: Babbitt or lead?

I've been doing some research into this babbitt thing as I have to address some engine bearing repair on my Twin City 20-35. Generally speaking there seems to be 2 basic grades...lead base and tin base. There are many different alloy blends available in each grade. Low grade starts at nearly all lead and on the high end nearly all tin with little or no lead used. Each blend seems to have its suggested usage.

I learned a lot on this website:
http://stores.acrosales.com/babbitt/
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Old 12-20-2016, 09:25:34 PM
5hpGalloway 5hpGalloway is offline
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Default Re: Babbitt or lead?

Thank you all for your input!! I found quite a bit of this Babbitt/lead in a dark forgotten corner at the machine shop I work at. My boss had no idea what it was or where it came from he had no use for it and I need to pour a rod bearing for my 15hp olin so I grabbed it probably 30 or 40 pounds of it easy hopefully its Babbitt!!!! I will let you know what I come up with thank you all!!!!
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Old 12-20-2016, 10:46:52 PM
Bill Hazzard Bill Hazzard is offline
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Default Re: Babbitt or lead?

Tin based Babbitt will ring when struck and lead based will not, also tin based melts at a much higher temperature than lead based.
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Old 12-21-2016, 12:11:17 AM
Mark Schneider Mark Schneider is offline
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Default Re: Babbitt or lead?

Do the ingots have any manufacture insignia or other script on them?
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Old 12-21-2016, 01:08:46 AM
5hpGalloway 5hpGalloway is offline
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Default Re: Babbitt or lead?

Not that I've seen a few of them are beet up real bad. some of them are the size of a muffin and the rest are in different shapes no markings
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