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  2. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    The most common materials for corrugated iron are ferrous alloys (e.g. stainless steels), aluminium and copper. Regular ferrous alloys are the most common due to price and availability. Common sizes of corrugated material can range from a very thin 30 gauge (0.012 inches, 0.3 mm) to a relatively thick 6 gauge (0.1943 inches, 5 mm). Thicker or ...

  3. Sheet metal - Wikipedia

    en.wikipedia.org/wiki/Sheet_metal

    Manufacturers' Standard Gauge for Sheet Steel is based on an average density of 41.82 lb per square foot per inch thick, [11] equivalent to 501.84 pounds per cubic foot (8,038.7 kg/m 3). Gauge is defined differently for ferrous (iron-based) and non-ferrous metals (e.g. aluminium and brass).

  4. Johnson bar - Wikipedia

    en.wikipedia.org/wiki/Johnson_bar

    A Johnson bar (also Johnson corrugated bar) is a type of corrugated high-carbon steel [1] rebar used to reinforce concrete. The Johnson bar was invented by A.L. Johnson [ 2 ] of the St. Louis Expanded Metal Company.

  5. Cold-formed steel - Wikipedia

    en.wikipedia.org/wiki/Cold-formed_steel

    [1] [2] These types of sections are cold-formed from steel sheet, strip, plate, or flat bar in roll forming machines, by press brake (machine press) or bending operations. The material thicknesses for such thin-walled steel members usually range from 0.0147 in. (0.373 mm) to about ¼ in. (6.35 mm).

  6. Metal roof - Wikipedia

    en.wikipedia.org/wiki/Metal_roof

    This allowed the sheet iron to be self-supporting when used as a roof; a contemporary account praised the material as "the lightest and strongest roof (for its weight) since the days of Adam". [7] After Palmer's patent expired in 1843, corrugated galvanized iron (CGI) became a world-wide favorite roofing material. [7]

  7. 4 Affordable Places To Visit in Europe After the Holiday Season

    www.aol.com/4-affordable-places-visit-europe...

    A last-minute winter getaway could be just what many people need to escape the mayhem experienced during the holiday season. Fortunately, by waiting until after the new year to travel, you may find...