Word: alloys
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...Toledo blades of Spain, the Damascus cutlery of the Levant-because their steels contained small amounts of molybdenum. However, the presence of molybdenum was accident. Mineralogists did not recognize it as a metal until the 1790's. Metallurgists did not introduce its hardening properties to a steel alloy until very recently. Pure iron is a relatively soft metal. A little carbon added yields hard steel. Steel plus a trifle of manganese gives an alloy hard enough, when fabricated into rails, to support heavy subway traffic. If with manganese steel a bit of molybdenum is mixed, the alloyed steel...
...American Society for Steel Treating, sponsors of the Congress. Mr. Guthrie's prediction followed his exposition on special furnaces in which gases are used to surface steel. Metals absorb gases, a phenomenon only now being put to industrial use. Konel Metal. News of a new and valuable alloy was despatched to the Congress by Westinghouse Electric & Manufacturing Co. Erwin Foster Lowry, 38, Michigan-born Ohio State graduate, had compounded nickel, cobalt and ferrotitanium. Result was a metal which grew stronger the hotter it was heated. Other metals become weaker with heat. Mr. Lowry's alloy has a tensile...
...Konel metal is not to be confused with monel metal, a copper-nickel alloy (plus small amounts of iron, carbon, manganese, silicon) developed in 1905. Monel metal is relatively soft, is valuable for its corrosion-resisting properties...
United Aircraft & Transport, by a stock trade, last week, acquired control of Standard Steel Propeller Co., West Homestead, Pa., maker of air propellers from aluminum alloy. United Aircraft was also organizing Northrup Aviation Corp. to take over the assets of John K. Northrup's Avian Corp., which is developing a new type of all-metal plane at Los Angeles. Recently United acquired Sikorsky Aviation Corp. (amphibians) and Stearman Aircraft Co. (commercial planes), is negotiating for Douglas Aircraft Co. (sport planes...
Consumption. Production of U. S. tin is negligible; but this country consumed (1928) 81,516 tons, or more than half the world's consumption. Tin is used mostly in combination with other metals. Most famed union is the copper-tin alloy bronze, from which was fashioned the short sword of the Roman Legions. Varying proportions of copper and tin give gun metal, bell metal, babbitt metal and many another alloy, the greater the percentage of tin the harder being the resulting composition. A tin and lead alloy is solder. Greatest use of tin (35% of total) is the making...