Show BUREAU SHOWS TUNGSTEN FACTS Interesting Summary lary Is Issued Issued Is- Is c- c sued by Mines lines Department De De- De- De I An Interesting summary of oC tho the consumption consumption con con- of oC tungsten In 1918 based on questionnaires distributed by tho the bureau bureau bu lIu- bu- bu reau o of mines shows that the tUn tungsten sten used In making of oC tungsten powder ferro terro and acid from Ma May to December InS 1918 amounted to about pounds from which It Is estimated that the total tungsten sten used In such products products products pro pro- ducts for or the tho calendar year ear of or 1918 amounted to about aboul pounds and that tho the amount of oC tungsten used In making malleable products during the same samo time was approximately poun pounds s. s The quantity of high high- speed steel made from M May to Decem Decem- ber 1918 was nearly nearh pounds from which It Is estimated et that the to total total total to- to tal weh weight ht of or such steel In th the year car was somewhat In excess of oC pounds tho tun tungsten content was probably probably probably ably nearly pounds The Thc tun tungsten sten steel made mado from Ia 1 May to De De- comber cember 1 1918 1018 IS was In excess of or pounds pound from which It is estimated that tho tIme total quantity produced In 1918 was approximately pounds The rho amount of oC 60 p per r cent concentrates r required d to make the tun tungsten sl n powder powderS and acid used cd In lIS was wa approximately l tons a assuming that 1 ton of or 60 60 per cent concentrates Is reduced to pounds of or contained tungsten In ferro During the past eighteen months about tons of ot molybdenum steel has been mado made In this country with ver very encouraging ln re results and It Is Isnow Isnow now no understood that some 0 of the tho leadIn leadIng leadIng lead- lead Ing In alloy steel mak makers r believe e that steel containing a relatively small quantity o of molybdenum Is superior to any other known material for or high high- grade airplane parts such as crank shafts The other alloying metals making up the steels are arc variously I re reported reported re- re ported as nickel vanadium and chro chro- from rom reports of or mineral mineral min min- eral cral In c Investigations of oC the bureau of or m mines mineR I n e a. a |