Steel colossus. (Science News of the year: the weekly newsmagazine of science).Unlike the stainless steel stainless steel: see steel. stainless steel Any of a family of alloy steels usually containing 10–30% chromium. The presence of chromium, together with low carbon content, gives remarkable resistance to corrosion and heat. that caps New York's Chrysler Building Chrysler Building, in midtown Manhattan, New York City, at Lexington Ave. between 42d and 43d St. The ultimate art deco-style skyscraper, it was commissioned by Walter P. Chrysler, designed by William Van Alen, and built in 1926–30. , cheap grades of the rust-resistant alloy are prone to pit corrosion, in which small spots on the metal's surface erode at accelerated rates. British researchers who analyzed various grades of stainless steel discovered that pit corrosion results from a dearth of chromium chromium (krō`mēəm) [Gr.,=color], metallic chemical element; symbol Cr; at. no. 24; at. wt. 51.996; m.p. about 1,857°C;; b.p. 2,672°C;; sp. gr. about 7.2 at 20°C;; valence +2, +3, +6. in the material that surrounds sulfide-rich inclusions in the metal (161: 99 *). * An asterisk (1) See Asterisk PBX. (2) In programming, the asterisk or "star" symbol (*) means multiplication. For example, 10 * 7 means 10 multiplied by 7. The * is also a key on computer keypads for entering expressions using multiplication. indicates that the text of the item is available free on SCIENCE NEWS ONLINE (http://www.sciencenews.org). |
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