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Grade 366 Molybdenum vs. EN 1.4652 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.4652 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 EN 1.4652 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
210
Elongation at Break, % 2.2
45
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
81
Tensile Strength: Ultimate (UTS), MPa 580
880
Tensile Strength: Yield (Proof), MPa 470
490

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Specific Heat Capacity, J/kg-K 210
460
Thermal Expansion, µm/m-K 7.6
15

Otherwise Unclassified Properties

Density, g/cm3 12
8.0
Embodied Carbon, kg CO2/kg material 27
6.4
Embodied Energy, MJ/kg 340
87
Embodied Water, L/kg 300
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
340
Resilience: Unit (Modulus of Resilience), kJ/m3 370
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
30
Strength to Weight: Bending, points 13
25
Thermal Shock Resistance, points 18
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 0 to 0.010
38.3 to 46.3
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 66.9 to 73
7.0 to 8.0
Nickel (Ni), % 0 to 0.0020
21 to 23
Nitrogen (N), % 0 to 0.0020
0.45 to 0.55
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Tungsten (W), % 27 to 33
0