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Automotive Grey Cast Iron vs. Grade CX2M Nickel

Automotive grey cast iron belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
220
Elongation at Break, % 9.6 to 14
45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69 to 70
84
Tensile Strength: Ultimate (UTS), MPa 140 to 290
550
Tensile Strength: Yield (Proof), MPa 94 to 200
310

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
330
Melting Completion (Liquidus), °C 1380 to 1390
1500
Melting Onset (Solidus), °C 1340 to 1350
1450
Specific Heat Capacity, J/kg-K 490
430
Thermal Conductivity, W/m-K 41 to 43
10
Thermal Expansion, µm/m-K 12 to 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
65
Density, g/cm3 7.5 to 7.6
8.7
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
12
Embodied Energy, MJ/kg 21 to 24
160
Embodied Water, L/kg 44 to 51
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
210
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 5.2 to 11
18
Strength to Weight: Bending, points 8.0 to 13
17
Thermal Diffusivity, mm2/s 11 to 12
2.7
Thermal Shock Resistance, points 4.2 to 8.6
15