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2. Rail profile - Wikipedia

   en.wikipedia.org/wiki/Rail_profile

   Weights are measured in pounds per yard (imperial units in Canada, the United Kingdom and United States) and kilograms per metre in mainland Europe and Australia). 1 kg/m = 2.0159 lb/yd. Commonly, in rail terminology pound is a metonym for the expression pounds per yard and hence a 132–pound rail means a rail of 132 pounds per yard.

3. Hardnesses of the elements (data page) - Wikipedia

   en.wikipedia.org/wiki/Hardnesses_of_the_elements...

   This page was last edited on 16 November 2024, at 12:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

4. Flatiron (ship) - Wikipedia

   en.wikipedia.org/wiki/Flatiron_(ship)

   Her mast(s) are hinged or telescopic, her funnel may be hinged, and her wheelhouse may also fold flat. Flatirons were developed in the UK in the latter part of the 19th century. Most were colliers built to bring coal from North East England and South Wales to gasworks and power stations on the River Thames that were upriver from the Pool of ...

5. Flatiron Building - Wikipedia

   en.wikipedia.org/wiki/Flatiron_Building

   [22] [84] [259] Each column is an I-beam measuring 14 by 14 inches (360 by 360 mm) across and 1 inch (25 mm) thick; [112] they have a maximum working stress of 12,500 pounds per square inch (86,000 kPa). [84] Twenty-five of these columns are placed on the building's perimeter: five on 22nd Street and ten each on Fifth Avenue and Broadway.

6. Tire code - Wikipedia

   en.wikipedia.org/wiki/Tire_code

   lbs Load Index (LI) kg lbs Load Index (LI) kg lbs 0: 45 99 100: 800 1764 200: 14000 30900 1: 46.5 102 101: 825 1819 201: 14500 32000 2: 47.5 105 102: 850 1874 202: 15000 33100 3: 48.7 107 103: 875 1929 203: 15500 34200 4: 50 110 104: 900 1984 204: 16000 35300 5: 51.5 114 105: 925 2039 205: 16500 36400 6: 53 117 106: 950 2094 206: 17000 37500 7: ...

7. Steelmaking - Wikipedia

   en.wikipedia.org/wiki/Steelmaking

   Between 1920 and 2000, labour requirements decreased by a factor of 1000, to 3 man-hours per thousand tonnes. [citation needed] In 2013, 70% of global steel output came from the basic oxygen furnace. [14] Furnaces can convert up to 350 tons of iron into steel in less than 40 minutes, compared to 10–12 hours in an open hearth furnace. [15]