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Grade 366 Molybdenum vs. EN 1.4028 Stainless Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.4028 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is EN 1.4028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
190
Elongation at Break, % 2.2
11 to 17
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 120
76
Tensile Strength: Ultimate (UTS), MPa 580
660 to 930
Tensile Strength: Yield (Proof), MPa 470
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Specific Heat Capacity, J/kg-K 210
480
Thermal Expansion, µm/m-K 7.6
11

Otherwise Unclassified Properties

Density, g/cm3 12
7.7
Embodied Carbon, kg CO2/kg material 27
1.9
Embodied Energy, MJ/kg 340
27
Embodied Water, L/kg 300
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
94 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 370
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
24 to 33
Strength to Weight: Bending, points 13
22 to 27
Thermal Shock Resistance, points 18
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.030
0.26 to 0.35
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 0 to 0.010
83.1 to 87.7
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 66.9 to 73
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0 to 0.0020
0
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 0.015
Tungsten (W), % 27 to 33
0