Plumbers lead with tin question

[toddrod]

A friend of mine gave me approx. 200 lbs of lead that he used to use to make gasket seals with. He told me that it is a lead / tin mixture but did not know the percentages. He did tell me it was a standard blend. Does anyone have an idea of what mix this could be?

[pworley1]

If it is commercial plumbing lead, it probably will have little or no tin in it. Most commercial plumbing lead is 91-99% lead and 1-9% antimony depending on the producer and intended use for the lead.

[GLL]

Carefully measure the density (specific gravity) of a small sample:

http://www.fototime.com/C51F5732993912E/orig.png

If you are confident it is a Lead/Tin alloy all is easy. If it is a Lead/Tin/ Antimony alloy there is a range of possibilities.

Jerry