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Which alloy is made by mixing 20% of lead and 80% of tin?

 

Hello,

I just want to ask you which alloy is made by mixing 20% of lead and 80% of tin. Please answer my question as soon as possible. Thank you for reading my e-mail.

Yours faithfully,

William Hexu Huhu Zhao
- London, England

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80-20 tin-lead solder.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
 

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First of two simultaneous responses --  

William,

Why don't you phone up Sir Johns Cass college in London as they teach metallurgy (or did when I was there). I'd guess that this is a later form of pewter ... earlier pewter having probably more lead and being more toxic.

Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).

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Second of two simultaneous responses --  

Hello William!

80 Tin and 20 Lead mix to form a solder- not one of the commercial ones in the States, as we commonly use different mixtures- but still a solder. Hope this helps!

Lee Gearhart
metallurgist - E. Aurora, New York