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EN 1.8874 Steel vs. Grade 366 Molybdenum

EN 1.8874 steel belongs to the iron alloys classification, while grade 366 molybdenum belongs to the otherwise unclassified metals. 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 EN 1.8874 steel and the bottom bar is grade 366 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
300
Elongation at Break, % 19
2.2
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
120
Tensile Strength: Ultimate (UTS), MPa 660
580
Tensile Strength: Yield (Proof), MPa 500
470

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 470
210
Thermal Expansion, µm/m-K 13
7.6

Otherwise Unclassified Properties

Density, g/cm3 7.9
12
Embodied Carbon, kg CO2/kg material 1.8
27
Embodied Energy, MJ/kg 24
340
Embodied Water, L/kg 52
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
12
Resilience: Unit (Modulus of Resilience), kJ/m3 670
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 23
13
Strength to Weight: Bending, points 21
13
Thermal Shock Resistance, points 19
18

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 0 to 1.0
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 93.6 to 100
0 to 0.010
Manganese (Mn), % 0 to 1.7
0
Molybdenum (Mo), % 0 to 0.7
66.9 to 73
Nickel (Ni), % 0 to 1.5
0 to 0.0020
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0 to 0.010
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
27 to 33
Vanadium (V), % 0 to 0.080
0
Zirconium (Zr), % 0 to 0.15
0