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View Full Version : What would this do to the mix?



Wayne Smith
04-04-2011, 05:31 PM
There is an eBay seller with metal that is:

88.85% Tin
5.8% Copper
2.31% Iron
1.85% Chrome

If that were added as tin what would the added metals at those concentrations do to the mix?

felix
04-04-2011, 05:47 PM
Prolly, no harm at all, Wayne. ... felix

southpaw
04-04-2011, 06:03 PM
If one pound of this metal were mixed in with pure lead for a 20 pound batch your percentages would be much lower.

4.44% tin
.29% copper
.12% iron
.09% chrome

I doubt that the iron or chrome would be a problem at those levels.

Jerry Jr.

bumpo628
04-04-2011, 06:41 PM
As said by Southpaw above, when you 'water' it down the other metals % get so low that they won't have any affect. In larger quantities, those metals would act as hardeners to the lead alloy. Take a look at the compositions of some forms of babbit.

If the above example, 4.44% tin is really high and probably a waste of tin for most purposes.
If you mix a pound of that alloy with 100 lbs of pure lead, here's what you'll get:
0.88% Tin
0.023% Iron
0.018% Chrome
0.057% Copper

Wayne Smith
04-05-2011, 02:37 PM
Thats what I thot, but it's nice to have confirmation.

sqlbullet
04-05-2011, 02:40 PM
If you go have your WW alloy tested with an XFR, you will find similar amounts of iron, chrome, copper and other traces in it. Comes from the clips and other contaminants that never really leave the alloy in our rudimentary refining process. I even saw traces of titanium on the list when I had mine tested.