EN 1.4123 Stainless Steel vs. Grade 364 Molybdenum

EN 1.4123 stainless steel belongs to the iron alloys classification, while grade 364 molybdenum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is EN 1.4123 stainless steel and the bottom bar is grade 364 molybdenum.

EN 1.4123 (X40CrMoVN16-2) Stainless Bearing Steel Grade 364 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.28
Poisson's Ratio		0.31

Shear Modulus, GPa		77
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		720 to 810
Tensile Strength: Ultimate (UTS), MPa		580 to 720

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		4.2
Embodied Carbon, kg CO₂/kg material		28

Embodied Energy, MJ/kg		62
Embodied Energy, MJ/kg		330

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

Common Calculations

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 29
Strength to Weight: Axial, points		16 to 20

Strength to Weight: Bending, points		23 to 25
Strength to Weight: Bending, points		15 to 17

Thermal Shock Resistance, points		26 to 29
Thermal Shock Resistance, points		19 to 24

Alloy Composition

Carbon (C), %		0.35 to 0.5
Carbon (C), %		0.010 to 0.040

Chromium (Cr), %		14 to 16.5
Chromium (Cr), %		0

Iron (Fe), %		76.7 to 84.6
Iron (Fe), %		0 to 0.010

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

Molybdenum (Mo), %		1.0 to 2.5
Molybdenum (Mo), %		99.2 to 99.5

Nickel (Ni), %		0 to 0.5
Nickel (Ni), %		0 to 0.0050

Nitrogen (N), %		0.1 to 0.3
Nitrogen (N), %		0 to 0.0020

Oxygen (O), %		0
Oxygen (O), %		0 to 0.030

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 0.0050

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0

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

Vanadium (V), %		0 to 1.5
Vanadium (V), %		0

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