Molybdenum

PHYSICAL PROPERTIES

PHASE — Solid
STD ATOMIC WEIGHT — 95.94 g·mol−1
MELTING TEMPERATURE — 2896 K, 2623 °C, 4753 °F
BOILING POINT — 5828 K, 5555 °C, 10031 °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