Preferenze
AziendaGoodfellow GmbH
LinguaItaliano
ValutaEUR
Consegna aGermania

Preferenze

EUR
    Totale:
     
     Prodotto/i  Articolo/i
    Accesso | Registrazione
    • Manganese - Tondino

      Manganese was discovered in 1774 by J.G. Grahn in Stockholm, Sweden. Manganese is abundant in the earth's crust (950 ppm) and its principle ore is pyrolusite, a crude form of the dioxide. It is obtained by reduction with aluminium or in a blast furnace. Pure manganese is a hard, brittle, silvery coloured, metallic element which exists in three polymorphic forms (alpha, beta and gamma) and has a complicated crystal structure. It resembles iron in being moderately reactive and dissolving in cold, dilute non-oxidising acids. When exposed to air, manganese forms an extremely stable oxide coating which is not easily reduced. Pure manganese is ferromagnetic after processing. Manganese is not used as the basis of alloys but it is a common constituent of alloys based on other systems, its addition resulting in a significant improvement in the physical and mechanical properties of the resulting alloys. For example, it is present in all steels and cast iron, the concentration being increased for special grades of material; it is also added to certain grades of brass and bronze as well as some nickel and aluminium base alloys. Manganese is also an important element for living beings as manganese deficiency can result in weakened bones and cause them to be easily broken. On average, a human body will contain 12 mg of the element.Tondino - Una lunghezza diritta di materiale dalla sezione circolare.

    3 risultati

    Prodotto
    Prodotto MN00-RD-000105 Manganese - Tondino Diametro 2mm Metodo di produzione Cast Lunghezza 25mm - 50mm Purity 99.5%
    Prodotto MN00-RD-000110 Manganese - Tondino Diametro 4mm Metodo di produzione Cast Lunghezza 10mm - 50mm Purity 99.5%
    Prodotto MN00-RD-000120 Manganese - Tondino Diametro 6.35mm Metodo di produzione Cast Lunghezza 50 mm Purity 99.5%
    Sorry – Your selected filters returned no results.

    Please try a different filter selection or choose from one of the following product types below:

    Sorry, but you need to update your browser to use our website.

    We apologise for any inconvenience this may cause and thanks for your patience.

    To place a phone order:
    US:1 800 821 2870
    UK: 0800 731 4653

    Customer Support: info@goodfellow.com

    Thank you
    The Goodfellow Team