terneplate

Dictionary: terne·plate

(tûrn'plāt') pronunciation

n.
Sheet iron or steel plated with an alloy of three or four parts of lead to one part of tin, used as a roofing material.

[Probably French terne, dull (from Old French; see tarnish) + PLATE.]

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Britannica Concise Encyclopedia: terneplate

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Steel sheet with a coating of terne metal, an alloy of lead and tin applied by dipping the steel in molten metal. The lead content gives terneplate a dull appearance, a noncorrosive surface, and solderability. The tin (12 – 50% of the alloy) wets the steel, making possible the union of lead and iron, which would otherwise not alloy. While it is still used for roofing, gutters and downspouts, casket linings, gasoline tanks, oil cans, and various containers, it has largely been replaced by other, more durable steel products that are easier to manufacture. See also galvanizing, tinplating.

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Architecture: terneplate

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Sheet steel which is coated with terne metal; widely used for roofing and construction work.

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	terne
	tin roofing
	tin-clad fire door

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		Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more
		Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved. Read more
		Architecture. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved. Read more