Re: today was unique, good, bad and unusual....

Posted by patgreen On 2014/6/9 5:28:46
Looked up terne on the wiki and found that it was tin and lead, but is now zinc and tin. One puzzling item in the description.

Terne is used to coat sheet steel to inhibit corrosion. It is one of the cheapest alloys suitable for this, and the tin content is kept at a minimum while still adhering to a hot-dipped iron sheet, to minimize the cost.[citation needed] Terne metal must be painted. If the paint is maintained, terne metal can last 90 years or more.

Any thoughts on the "must be painted" comment?

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