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according acid American analysis Annates des Mines apparatus assay bars Bessemer process Bessemer steel blast furnace blooms bottom carbonic oxyd carburation cast iron cast steel cementation cent charcoal charged coal copper crucibles cubic centimetres cupola building cyanides cylinder Eggertz method employed engine establishment experiments Exposition filings fining Finspong forging francs Fremy fusion gases gramme gray iron hammer hearth heated homogeneous iron homogeneous metal hydrogen inches ingots Iron and Steel kilogrammes ladle latter less malleable manganese manufacture means melted Metallurgy mixture Neuberg nitrogen obtained operation oxyd of iron patent phosphorus pig iron pig iron containing pig metal piston Plate pounds proportion of carbon puddled iron pure pig iron purified rails reaction recarburation reverberatory furnace rods roller rolls scoria silica silicon smelted solution spiegel pig spiegeleisen steam substances sulphur Swedish tained temperature tempered tenacity tion tons traces Tunner tuyeres vessels welded wrought iron
Page 8 - The name wrought-iron is given to a metal more or less refined, obtained from cast-iron, or in the direct way from iron ores ; it is malleable hot or cold, but not capable of being tempered. The practical man will call every intermediate product steel, which may be tempered, but which remains malleable hot and cold when not tempered, and this metal will be steel, whatever be the method followed to obtain it.
Page 9 - ... malleable hot and cold when not tempered, and this metal will be steel, whatever be the method followed to obtain it. According to this, in its properties, as well as its manufacture, steel is comprised between the limits of cast-iron and wrought-iron. It cannot even be said where steel begins or ends After all, that which distinguishes the three products is solely, as shown long since by Karsten, the relative proportions of carbon, of which a portion is simply mingled with the iron, the remainder...