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Grade 366 Molybdenum vs. EN 1.4529 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.4529 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 1.4529 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
200
Elongation at Break, % 2.2
43
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
80
Tensile Strength: Ultimate (UTS), MPa 580
750
Tensile Strength: Yield (Proof), MPa 470
340

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Specific Heat Capacity, J/kg-K 210
460
Thermal Expansion, µm/m-K 7.6
16

Otherwise Unclassified Properties

Density, g/cm3 12
8.1
Embodied Carbon, kg CO2/kg material 27
6.2
Embodied Energy, MJ/kg 340
84
Embodied Water, L/kg 300
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
260
Resilience: Unit (Modulus of Resilience), kJ/m3 370
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
26
Strength to Weight: Bending, points 13
23
Thermal Shock Resistance, points 18
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 0 to 0.010
42.7 to 50.4
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 66.9 to 73
6.0 to 7.0
Nickel (Ni), % 0 to 0.0020
24 to 26
Nitrogen (N), % 0 to 0.0020
0.15 to 0.25
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 0.010
Tungsten (W), % 27 to 33
0