Iron+&+Steel

=Steel = **Ingredients:** Iron with a touch of carbon. || **Strengths:** One of strongest materials used in construction, strong in compression and tension.
 * ==Properties == || ==Pros + Cons == || ==Applications == ||
 * **Type:** high-strength steel
 * Weaknesses:** Ruts, Loses strength in extremely high temperatures || Cables in suspension bridges, trusses, beams and columns in skyscrapers, roller coasters. ||

=Iron =
 * ==Properties == || ==Pros + Cons == || ==Applications == ||
 * **Type:** Cast iron
 * Ingredients:** Iron with a lots of carbon || **Strengths:** Molds to any shape, strong in compression.
 * Weaknesses:** Weaker than steel in tension, breaks without warning. || Arch bridges, cannons, historic domes. ||

=Corrugated iron in australia =

<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">What corrugated iron is
<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);"> It’s a corrugated galvanized iron, commonly abbreviated CGI, is a building material composed of sheets of hot-dip galvanized mild steel cold-rolled to have a linear corrugated pattern in them. <span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">

<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">Characteristics
<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">It’s cheap, easy to transport, durable, strong, supple an available everywhere.

<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">Uses through history
<span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);"> <span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);"> <span style="font-family: Arial,Helvetica,sans-serif; color: rgb(0, 128, 128);">Since it’s creation in 1840s became a common construction material in rural areas in the United States and Australia and later India, and in Australia also became (and remains) the most common roofing material and is even used in urban areas (in which application it is usually painted) but not as commonly as in rural areas.

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