Grade 366 Molybdenum
Grade 366 molybdenum is a molybdenum alloy. Cited properties are appropriate for the stress relieved condition. It has a moderately high tensile strength and a moderately high density among alloys in the same category.
The graph bars on the material properties cards below compare grade 366 molybdenum to: molybdenum alloys (top), all alloys in the same category (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
300 GPa 44 x 106 psi
Elongation at Break
2.2 %
Poisson's Ratio
0.3
Shear Modulus
120 GPa 17 x 106 psi
Tensile Strength: Ultimate (UTS)
580 MPa 84 x 103 psi
Tensile Strength: Yield (Proof)
470 MPa 69 x 103 psi
Thermal Properties
Latent Heat of Fusion
310 J/g
Specific Heat Capacity
210 J/kg-K 0.051 BTU/lb-°F
Thermal Expansion
7.6 µm/m-K
Otherwise Unclassified Properties
Density
12 g/cm3 750 lb/ft3
Embodied Carbon
27 kg CO2/kg material
Embodied Energy
340 MJ/kg 150 x 103 BTU/lb
Embodied Water
300 L/kg 36 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
12 MJ/m3
Resilience: Unit (Modulus of Resilience)
370 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
13 points
Strength to Weight: Bending
13 points
Thermal Shock Resistance
18 points
Alloy Composition
| Mo | 66.9 to 73 | |
| W | 27 to 33 | |
| C | 0 to 0.030 | |
| Si | 0 to 0.010 | |
| Fe | 0 to 0.010 | |
| O | 0 to 0.0025 | |
| Ni | 0 to 0.0020 | |
| N | 0 to 0.0020 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B386: Standard Specification for Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, and Foil
ASTM B387: Standard Specification for Molybdenum and Molybdenum Alloy Bar, Rod, and Wire
Sintering of Advanced Materials: Fundamentals and Processes, Zhigang Zak Fang (editor), 2010