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Automotive Grey Cast Iron vs. Chromium 33

Automotive grey cast iron belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6 to 14
45
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 69 to 70
81
Tensile Strength: Ultimate (UTS), MPa 140 to 290
850
Tensile Strength: Yield (Proof), MPa 94 to 200
430

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
320
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 12 to 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
36
Density, g/cm3 7.5 to 7.6
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
6.0
Embodied Energy, MJ/kg 21 to 24
84
Embodied Water, L/kg 44 to 51
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
320
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 5.2 to 11
30
Strength to Weight: Bending, points 8.0 to 13
25
Thermal Shock Resistance, points 4.2 to 8.6
21