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Grade 366 Molybdenum vs. S46910 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while S46910 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
200
Elongation at Break, % 2.2
2.2 to 11
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
76
Tensile Strength: Ultimate (UTS), MPa 580
680 to 2470
Tensile Strength: Yield (Proof), MPa 470
450 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Specific Heat Capacity, J/kg-K 210
470
Thermal Expansion, µm/m-K 7.6
11

Otherwise Unclassified Properties

Density, g/cm3 12
7.9
Embodied Carbon, kg CO2/kg material 27
4.1
Embodied Energy, MJ/kg 340
55
Embodied Water, L/kg 300
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
48 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 370
510 to 4780
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
24 to 86
Strength to Weight: Bending, points 13
22 to 51
Thermal Shock Resistance, points 18
23 to 84

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.5
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 0 to 0.010
65 to 76
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 66.9 to 73
3.0 to 5.0
Nickel (Ni), % 0 to 0.0020
8.0 to 10
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.5 to 1.2
Tungsten (W), % 27 to 33
0