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Molybdenum

Molybdenum is known for its strength and toughness and is often used in alloys to improve hardenability, corrosion resistance, and abrasion resistance. It also is strong at elevated temperatures with a high melting point. Molybdenum is not very ductile or malleable. It is often used in spacecraft, aircraft and missile parts.

SUMMARY

  • Name: Molybdenum
  • Symbol: Mo
  • Atomic Number: 42
  • Atomic Weight: 95.94
  • Density: 10.22 g/cm3 at 20 °C
  • Standard State: Solid
  • Group in Periodic Table: 6
  • Period in Periodic Table: 5
  • Block in Periodic Table: d
  • CAS Registry ID: 7439-98-7

PHYSICAL PROPERTIES

THERMAL PROPERTIES

  • Melting Point: 2610 °C
  • Boiling Point: 5560 °C
  • Thermal Conductivity: 20 °C, 142 W/m . K

ELECTRICAL PROPERTIES

  • Electrical Conductivity: At 0 °C: 34% IACS
  • Electrical Resistivity: At 0 °C: 52 nΩ . m

MAGNETIC PROPERTIES

  • Magnetic Susceptibility: Mass 1.17 x 10-8 mks at 25 °C; 1.39 x 10-8 mks at 1825 °C

OPTICAL PROPERTIES

  • Reflectivity: 46% at 500 nm, 93% at 10 000 nm
  • Color: Silvery white

CHEMICAL PROPERTIES

  • General Corrosion Behavior: Good resistance to corrosion by mineral agents provided oxidizing agents are not present

FABRICATION PROPERTIES

  • Hot-Working Temperature: Generally forged between 1180 and 1290 °C down to 903 °C
  • Annealing Temperature: Normal stress-relieving temperature is 870 to 980°C
Molybdenum
42
Mo
95.94
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“Design engineers George LaFleur (left) and Richard Felberg (center) working with owner, Al Menzies (right) on a proprietary design in 1974”

About Standard Die

Standard Die is a precision metal stamper specializing in small parts made from thin grade specialty metals. Mastering refractory metals like tantalum and titanium and common materials like copper and steel, we pride ourselves in delivering the highest quality product with the best customer service in the industry.
Our metal stampings are of the highest quality, and our deep drawn and forming capabilities are among the best in the industry. We specialize in drawing small cups, cans, cones, crucibles and more, yet we are fully capable of forming brackets, rivets, clips, terminals and more.

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