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Grade 366 Molybdenum vs. ACI-ASTM CG12 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while ACI-ASTM CG12 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 ACI-ASTM CG12 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
78
Tensile Strength: Ultimate (UTS), MPa 580
550
Tensile Strength: Yield (Proof), MPa 470
220

Thermal Properties

Latent Heat of Fusion, J/g 310
300
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
3.3
Embodied Energy, MJ/kg 340
48
Embodied Water, L/kg 300
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
180
Resilience: Unit (Modulus of Resilience), kJ/m3 370
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 13
20
Strength to Weight: Bending, points 13
19
Thermal Shock Resistance, points 18
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 0
20 to 23
Iron (Fe), % 0 to 0.010
60.3 to 70
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 66.9 to 73
0
Nickel (Ni), % 0 to 0.0020
10 to 13
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 2.0
Sulfur (S), % 0
0 to 0.040
Tungsten (W), % 27 to 33
0