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Molybdenum

Properties of Molybdenum

Molybdenum Products

PHYSICAL PROPERTIES

PHASE — Solid
STD ATOMIC WEIGHT — 95.94 g·mol−1
MELTING TEMPERATURE — 2896 K, 2623 °C, 4753 °F
BOILING POINT — 4912 K, 4639 °C, 8382 °F
CRYSTAL STRUCTURE — Body-Centered Cubic
ELECTRICAL RESISTIVITY — (20 °C) 53.4 nΩ·m
THERMAL CONDUCTIVITY — (300 K) 138 W·m−1·K−1
THERMAL EXPANSION — (25 °C) 4.8 µm·m−1·K−1

GENERAL PROPERTIES

SYMBOL —Mo
NUMBER — 42
ELEMENT CATEGORY: — Transition Metals

KEY FACTS

  • Discovered in 1778 by Carl Wilhelm Scheele
  • First used as armor plating on British tanks in World War I
  • Has one of the lowest coefficients of thermal expansion of most commercial metals

MAJOR APPLICATIONS

  • High temperature applications including furnace parts, lighting components and electrical contacts
  • Commonly added to high strength steel alloys
  • Used in the production of molten zinc

AVAILABLE ALLOYS

  • Molybdenum
  • (TZM) Molybdenum .5% Titanium .08% Zirconium
  • Molybdenum 30%Tungsten
  • Molybdenum 50% Rhenium