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Grade 366 Molybdenum vs. EN 1.0425 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.0425 steel belongs to the iron alloys. There are 20 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 366 molybdenum and the bottom bar is EN 1.0425 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
190
Elongation at Break, % 2.2
24
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 120
73
Tensile Strength: Ultimate (UTS), MPa 580
470
Tensile Strength: Yield (Proof), MPa 470
260

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Specific Heat Capacity, J/kg-K 210
470
Thermal Expansion, µm/m-K 7.6
12

Otherwise Unclassified Properties

Density, g/cm3 12
7.8
Embodied Carbon, kg CO2/kg material 27
1.5
Embodied Energy, MJ/kg 340
20
Embodied Water, L/kg 300
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
98
Resilience: Unit (Modulus of Resilience), kJ/m3 370
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
17
Strength to Weight: Bending, points 13
17
Thermal Shock Resistance, points 18
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 0.010
96.9 to 99.18
Manganese (Mn), % 0
0.8 to 1.4
Molybdenum (Mo), % 66.9 to 73
0 to 0.080
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Niobium (Nb), % 0
0 to 0.020
Nitrogen (N), % 0 to 0.0020
0 to 0.012
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.4
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 27 to 33
0
Vanadium (V), % 0
0 to 0.020