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    • Molibdeno - Rondella

      Discovered in 1871 by P.J. Hjelm in Uppsala, Sweden. Molybdenum is a lustrous, silvery coloured metal which has an abundance of 1.5 ppm in the earth's crust. In many instances, it shows a resemblance to tungsten with which it tends to be paired in the transition series in the periodic table, but their chemistries tend to show more distinct differences than might be expected. Molybdenum has a high melting point and applications for the pure metal take advantage of this; for example, the pure material is used as resistance heating elements in furnaces, as filament supports in electric lamps, and as electrodes for mercury vapour lamps. Molybdenum is used as an alloying agent in certain grades of steel, Permalloys and Stellites (a series of alloys which contain varying proportions of Cr, Co, W and Mo, are very hard and are used in cutting tools and to protect surfaces subject to heavy wear).Rondella - Un sottile, piatto pezzo di materiale con un foro nel mezzo, utilizzato in combinazione con bulloni e dadi per distribuire il carico di un dispositivo di fissaggio filettato.

    3 risultati

    Prodotto MO00-WA-000103 Molibdeno - Rondella Misura M3 Thickness 0.5mm Diametro interno 3.29mm Diametro esterno 6.82mm Norma ISO 7089:2000 Quantity 1 Piece - 100 Piece
    Prodotto MO00-WA-000104 Molibdeno - Rondella Misura M4 Thickness 0.8mm Diametro interno 4.39mm Diametro esterno 8.82mm Norma ISO 7089:2000 Quantity 1 Piece - 100 Piece
    Prodotto MO00-WA-000105 Molibdeno - Rondella Misura M5 Thickness 1mm Diametro interno 5.39mm Diametro esterno 9.82mm Norma ISO 7089:2000 Quantity 1 Piece - 100 Piece
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