AISI 440C Stainless Steel vs. Grade 365 Molybdenum

AISI 440C stainless steel belongs to the iron alloys classification, while grade 365 molybdenum belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is grade 365 molybdenum.

AISI 440C (S44004) Stainless Steel Grade 365 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		310

Elongation at Break, %		2.0 to 14
Elongation at Break, %		6.3

Poisson's Ratio		0.28
Poisson's Ratio		0.31

Shear Modulus, GPa		76
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		710 to 1970
Tensile Strength: Ultimate (UTS), MPa		620

Tensile Strength: Yield (Proof), MPa		450 to 1900
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		480
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		10
Thermal Expansion, µm/m-K		7.0

Otherwise Unclassified Properties

Density, g/cm³		7.7
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		2.2
Embodied Carbon, kg CO₂/kg material		28

Embodied Energy, MJ/kg		31
Embodied Energy, MJ/kg		330

Embodied Water, L/kg		120
Embodied Water, L/kg		360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		39 to 88
Resilience: Ultimate (Unit Rupture Work), MJ/m³		37

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		17

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

Strength to Weight: Axial, points		26 to 71
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		23 to 46
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		26 to 71
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		1.0 to 1.2
Carbon (C), %		0 to 0.010

Chromium (Cr), %		16 to 18
Chromium (Cr), %		0

Iron (Fe), %		78 to 83.1
Iron (Fe), %		0 to 0.010

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0 to 0.75
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 0.040
Phosphorus (P), %		0

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 0.010

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0