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Grade 366 Molybdenum vs. S42010 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while S42010 stainless 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 S42010 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
200
Elongation at Break, % 2.2
18
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
76
Tensile Strength: Ultimate (UTS), MPa 580
590
Tensile Strength: Yield (Proof), MPa 470
350

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Specific Heat Capacity, J/kg-K 210
480
Thermal Expansion, µm/m-K 7.6
10

Otherwise Unclassified Properties

Density, g/cm3 12
7.7
Embodied Carbon, kg CO2/kg material 27
2.2
Embodied Energy, MJ/kg 340
30
Embodied Water, L/kg 300
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
95
Resilience: Unit (Modulus of Resilience), kJ/m3 370
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
21
Strength to Weight: Bending, points 13
20
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.15 to 0.3
Chromium (Cr), % 0
13.5 to 15
Iron (Fe), % 0 to 0.010
80.9 to 85.6
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 66.9 to 73
0.4 to 0.85
Nickel (Ni), % 0 to 0.0020
0.35 to 0.85
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 27 to 33
0