Grey Cast Iron vs. Grade 365 Molybdenum

Grey cast iron belongs to the iron alloys classification, while grade 365 molybdenum belongs to the otherwise unclassified metals. 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 grey cast iron and the bottom bar is grade 365 molybdenum.

Grey Cast Iron Grade 365 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		180
Elastic (Young's, Tensile) Modulus, GPa		310

Elongation at Break, %		9.6
Elongation at Break, %		6.3

Poisson's Ratio		0.29
Poisson's Ratio		0.31

Shear Modulus, GPa		69
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		160 to 450
Tensile Strength: Ultimate (UTS), MPa		620

Tensile Strength: Yield (Proof), MPa		98 to 290
Tensile Strength: Yield (Proof), MPa		530

Thermal Properties

Latent Heat of Fusion, J/g		280
Latent Heat of Fusion, J/g		370

Specific Heat Capacity, J/kg-K		490
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		7.0

Otherwise Unclassified Properties

Density, g/cm³		7.5
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		1.5
Embodied Carbon, kg CO₂/kg material		28

Embodied Energy, MJ/kg		21
Embodied Energy, MJ/kg		330

Embodied Water, L/kg		44
Embodied Water, L/kg		360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		13 to 37
Resilience: Ultimate (Unit Rupture Work), MJ/m³		37

Resilience: Unit (Modulus of Resilience), kJ/m³		27 to 240
Resilience: Unit (Modulus of Resilience), kJ/m³		450

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

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		5.8 to 17
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		8.7 to 17
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		6.0 to 17
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		3.1 to 3.4
Carbon (C), %		0 to 0.010

Iron (Fe), %		92.1 to 93.9
Iron (Fe), %		0 to 0.010

Manganese (Mn), %		0.5 to 0.7
Manganese (Mn), %		0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		99.9 to 100

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

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

Oxygen (O), %		0
Oxygen (O), %		0 to 0.0015

Phosphorus (P), %		0 to 0.9
Phosphorus (P), %		0

Silicon (Si), %		2.5 to 2.8
Silicon (Si), %		0 to 0.010

Sulfur (S), %		0 to 0.15
Sulfur (S), %		0