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Grade 366 Molybdenum vs. S32304 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while S32304 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
200
Elongation at Break, % 2.2
28
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 120
79
Tensile Strength: Ultimate (UTS), MPa 580
670
Tensile Strength: Yield (Proof), MPa 470
460

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Specific Heat Capacity, J/kg-K 210
480
Thermal Expansion, µm/m-K 7.6
13

Otherwise Unclassified Properties

Density, g/cm3 12
7.7
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 340
40
Embodied Water, L/kg 300
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
170
Resilience: Unit (Modulus of Resilience), kJ/m3 370
520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
24
Strength to Weight: Bending, points 13
22
Thermal Shock Resistance, points 18
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
21.5 to 24.5
Copper (Cu), % 0
0.050 to 0.6
Iron (Fe), % 0 to 0.010
65 to 75.4
Manganese (Mn), % 0
0 to 2.5
Molybdenum (Mo), % 66.9 to 73
0.050 to 0.6
Nickel (Ni), % 0 to 0.0020
3.0 to 5.5
Nitrogen (N), % 0 to 0.0020
0.050 to 0.2
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