Molybdenum Properties

molybdenum mechanical physical properties specifications chemistryEFINEA is a leading global supplier of Molybdenum.  Molybdenum offers a high melting point and low vapor pressure.  Due to its high melting point, it offers a very low creep rate at typical furnace temperatures. The thermal expansion characteristics of Molybdenum are approximately one-third of stainless steels.

The tables below contain the physical, mechanical, chemical, and specifications for Molybdenum.  Please contact the sales team at EFINEA if you have any questions or need additional information.

For an EFINEA Molybdenum datasheet, or any other Refractory Metals & Alloys datasheets, please navigate to the Data Sheets section in our Technical Library.

Molybdenum Typical Physical Properties


Melting Point°F4748
Specific Electrical Resistance(Ω∙mm2)/m0.056
Specific Heat @20°CJ/(gK)0.254
*Recrystallization Temp1100
Thermal Conductivity @20°CW/(m-K)142
Coefficient of Linear Thermal Expansion @20°Cm/(m-K)5.2x10-6
*Temp C for 100% recrystallization. One hour annealing time. Deformation level + 90%. Source: Plansee

Molybdenum Typical Mechanical Properties

Stress RelievedRecrystallized
*Tensile Strength RmMPa-20°C800
Typical HardnessHV10>220160-180
Modulus of Elasticity
*2mm sheet, longitudinal direction. Source: Plansee

Molybdenum Chemistry %

Carbon, max.0.010
Oxygen, max.0.0070
Nitrogen, max.0.0020
Iron. max.0.010
Nickel, max0.005
Silicon, max.0.010
Molybdenum, Balance>99.95
Source: ASTM B386 & B387 Type1, Table 1 Chemical Requirements

Molybdenum Specifications

ASTM B386 Type 361
(Plate + Sheet)
ASTM B387 Type 361
(Round Bar)
AMS 7800UNS R03610CAS 7439-98-7

For additional information on specifications of the materials distributed by EFINEA, please visit the websites of the international organizations that develop and publish technical standards: ASTM International and ASM International.

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