Grade 366 Molybdenum vs. ASTM Grade LC3 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while ASTM grade LC3 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is ASTM grade LC3 steel.

Grade 366 Molybdenum ASTM Grade LC3 (J31550) Cast Nickel Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		300
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		2.2
Elongation at Break, %		27

Poisson's Ratio		0.3
Poisson's Ratio		0.29

Shear Modulus, GPa		120
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		570

Tensile Strength: Yield (Proof), MPa		470
Tensile Strength: Yield (Proof), MPa		310

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		210
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		7.6
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Density, g/cm³		12
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		27
Embodied Carbon, kg CO₂/kg material		1.7

Embodied Energy, MJ/kg		340
Embodied Energy, MJ/kg		23

Embodied Water, L/kg		300
Embodied Water, L/kg		52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		12
Resilience: Ultimate (Unit Rupture Work), MJ/m³		130

Resilience: Unit (Modulus of Resilience), kJ/m³		370
Resilience: Unit (Modulus of Resilience), kJ/m³		260

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		20

Strength to Weight: Bending, points		13
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		17

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0 to 0.15

Iron (Fe), %		0 to 0.010
Iron (Fe), %		94.4 to 96.5

Manganese (Mn), %		0
Manganese (Mn), %		0.5 to 0.8

Molybdenum (Mo), %		66.9 to 73
Molybdenum (Mo), %		0

Nickel (Ni), %		0 to 0.0020
Nickel (Ni), %		3.0 to 4.0

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

Oxygen (O), %		0 to 0.0025
Oxygen (O), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0 to 0.010
Silicon (Si), %		0 to 0.6

Sulfur (S), %		0
Sulfur (S), %		0 to 0.045

Tungsten (W), %		27 to 33
Tungsten (W), %		0