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Lead alloy

15 years ago

I am interested in knowing the exact combination of metals and other things in the lead alloy used in the surfacing process. Anybody know?

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Comments (3)

joed
15 years ago
What surfacing proccess? Can you elaborate a little more for us.
mightyanvil
15 years ago
Are you referring to terne (lead-tin alloy) coated steel roofing? Or a lead-copper alloy? Or lead coated copper flashing?

There are safer more environmentally friendly versions of these coatings mostly made of a zinc and tin.
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wilson47
15 years ago
117 alloy used for blocking is a Eutectic Fusible Alloy and its primary component is Bismuth. (The price has gone up, up, up over the past 18 months)

Fusible Alloys include a group of binary, ternary, quaternary, and quinary alloys containing Bismuth, lead, tin, cadmium and indium. The term fusible alloy refers to any of the more than 100 white-metal alloys that melt at relatively low temperatures.

Bismuth 44.7%
Lead 22.6%
Tin 8.3%
Cadmium 5.3%
Indium 19.1%
tin alloys

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