Grade 363 Molybdenum vs. ASTM F15 Fe-Ni-Co

Grade 363 molybdenum belongs to the otherwise unclassified metals classification, while ASTM F15 Fe-Ni-Co belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 363 molybdenum and the bottom bar is ASTM F15 Fe-Ni-Co.

Grade 363 Molybdenum ASTM F15 (1.3981, K94610) Fe-Ni-Co Sealing Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		310
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.31
Poisson's Ratio		0.3

Shear Modulus, GPa		120
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		580 to 720
Tensile Strength: Ultimate (UTS), MPa		520 to 880

Thermal Properties

Latent Heat of Fusion, J/g		370
Latent Heat of Fusion, J/g		270

Specific Heat Capacity, J/kg-K		250
Specific Heat Capacity, J/kg-K		460

Thermal Expansion, µm/m-K		7.0
Thermal Expansion, µm/m-K		6.0

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		28
Embodied Carbon, kg CO₂/kg material		5.2

Embodied Energy, MJ/kg		330
Embodied Energy, MJ/kg		71

Embodied Water, L/kg		360
Embodied Water, L/kg		190

Common Calculations

Stiffness to Weight: Axial, points		17
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		16 to 20
Strength to Weight: Axial, points		17 to 29

Strength to Weight: Bending, points		15 to 17
Strength to Weight: Bending, points		17 to 24

Thermal Shock Resistance, points		19 to 24
Thermal Shock Resistance, points		32 to 55

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.1

Carbon (C), %		0.010 to 0.030
Carbon (C), %		0 to 0.040

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.2

Cobalt (Co), %		0
Cobalt (Co), %		16 to 18

Copper (Cu), %		0
Copper (Cu), %		0 to 0.2

Iron (Fe), %		0 to 0.010
Iron (Fe), %		50.3 to 56

Magnesium (Mg), %		0
Magnesium (Mg), %		0 to 0.1

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.5

Molybdenum (Mo), %		99.3 to 99.5
Molybdenum (Mo), %		0 to 0.2

Nickel (Ni), %		0 to 0.0020
Nickel (Ni), %		28 to 30

Nitrogen (N), %		0 to 0.0020
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.0030
Oxygen (O), %		0

Silicon (Si), %		0 to 0.010
Silicon (Si), %		0 to 0.2

Titanium (Ti), %		0.4 to 0.55
Titanium (Ti), %		0 to 0.1

Zirconium (Zr), %		0.060 to 0.12
Zirconium (Zr), %		0 to 0.1