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ACI-ASTM CB7Cu-2 Steel vs. Grade 366 Molybdenum

ACI-ASTM CB7Cu-2 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 (10, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-2 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, % 5.7 to 11
2.2
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 75
120
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
580
Tensile Strength: Yield (Proof), MPa 760 to 1180
470

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Specific Heat Capacity, J/kg-K 480
210
Thermal Expansion, µm/m-K 11
7.6

Otherwise Unclassified Properties

Density, g/cm3 7.8
12
Embodied Carbon, kg CO2/kg material 2.6
27
Embodied Energy, MJ/kg 38
340
Embodied Water, L/kg 130
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
12
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 34 to 48
13
Strength to Weight: Bending, points 28 to 35
13
Thermal Shock Resistance, points 32 to 45
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 73.6 to 79
0 to 0.010
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0
66.9 to 73
Nickel (Ni), % 4.5 to 5.5
0 to 0.0020
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
27 to 33