April 10, 1864.—The modern process of manufacturing open hearth steel was started by PierreEmile Martin, who melted together pig-iron, scrap, and iron ore in a Siemen's regenerative furnace. Martin's ...

IN open-hearth steel-making, chemical reactions take place between the metal bath and a supernatant slag layer, and any material balance on the process demands an accurate knowledge of the masses ...

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Donald Trump wants to help the steel industry in this country, and he’s announced plans for protective tariffs, claiming that “trade wars are good, and easy to win”. By way of explanation, Trump ...