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Austempered Cast Iron vs. Grade 361 Molybdenum

Austempered cast iron belongs to the iron alloys classification, while grade 361 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is grade 361 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
310
Elongation at Break, % 1.1 to 13
6.3
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 62 to 69
120
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
620
Tensile Strength: Yield (Proof), MPa 560 to 1460
530

Thermal Properties

Latent Heat of Fusion, J/g 280
370
Specific Heat Capacity, J/kg-K 490
250
Thermal Expansion, µm/m-K 13
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.5
10
Embodied Carbon, kg CO2/kg material 1.8
28
Embodied Energy, MJ/kg 25
330
Embodied Water, L/kg 48
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
37
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
450
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32 to 66
17
Strength to Weight: Bending, points 27 to 44
16
Thermal Shock Resistance, points 25 to 53
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0 to 0.010
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 89.6 to 94
0 to 0.010
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0
Molybdenum (Mo), % 0 to 0.3
99.9 to 100
Nickel (Ni), % 0 to 2.0
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0070
Phosphorus (P), % 0 to 0.040
0
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0 to 0.010
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0 to 0.020
0
Vanadium (V), % 0 to 0.1
0