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Grade 366 Molybdenum vs. EN 1.4570 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.4570 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is EN 1.4570 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
200
Elongation at Break, % 2.2
40
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
77
Tensile Strength: Ultimate (UTS), MPa 580
610
Tensile Strength: Yield (Proof), MPa 470
210

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
16

Otherwise Unclassified Properties

Density, g/cm3 12
7.8
Embodied Carbon, kg CO2/kg material 27
3.1
Embodied Energy, MJ/kg 340
43
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
190
Resilience: Unit (Modulus of Resilience), kJ/m3 370
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
22
Strength to Weight: Bending, points 13
20
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
1.4 to 1.8
Iron (Fe), % 0 to 0.010
65 to 73.5
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 66.9 to 73
0 to 0.6
Nickel (Ni), % 0 to 0.0020
8.0 to 10
Nitrogen (N), % 0 to 0.0020
0 to 0.1
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Tungsten (W), % 27 to 33
0