Giant ingot of steel used to forge the armor-plate of warships
Item
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Title (Dublin Core)
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Giant ingot of steel used to forge the armor-plate of warships
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Article Title and/or Image Caption (Dublin Core)
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A Little Ingot of Steel Weighing 320,000 Pounds
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extracted text (Extract Text)
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THE mass of steel shown above is known as a steel
ingot, and its weight as it stands—or rather hangs
suspended from a crane—is 320,000 pounds, or 160 tons.
An ingot is the name given to the shape of the cold steel
as it comes from the mold into which it was poured in a
hot liquid condition when it left the steel-making furnace.
Sometimes these molds are long and round, sometimes
they are square, sometimes they are octagonal or fluted, and
sometimes they are of the shape shown—rectangular
‘masses several feet wide and a foot or two or more thick.
It is the latter, similar
to the one illustrated, which
are later reheated and forged
into the armor-plate, several
inches thick, which is used
to protect the sides of
battleships. It takes a
week or two for these large
masses of metal to cool.
The ingot proper, or that
portion which is finally used
to be forged down to armor-
plate or other finished forg-
ings, is the rectangular
part. The circular part,
called the head, cools
last, and presses down upon
the lower main mass as
this cools, filling up any
part of this that becomes
hollow.
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Language (Dublin Core)
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eng
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Date Issued (Dublin Core)
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1919-01
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pages (Bibliographic Ontology)
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15
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Rights (Dublin Core)
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Public domain (Google digitized)
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Archived by (Dublin Core)
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Davide Donà
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Marco Bortolami (editor)
Popular Science Monthly, v. 94, n. 1, 1919
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