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Automotive Grey Cast Iron vs. C44500 Brass

Automotive grey cast iron belongs to the iron alloys classification, while C44500 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is C44500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 69 to 70
41
Tensile Strength: Ultimate (UTS), MPa 140 to 290
350
Tensile Strength: Yield (Proof), MPa 94 to 200
120

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
180
Melting Completion (Liquidus), °C 1380 to 1390
940
Melting Onset (Solidus), °C 1340 to 1350
900
Specific Heat Capacity, J/kg-K 490
380
Thermal Conductivity, W/m-K 41 to 43
110
Thermal Expansion, µm/m-K 12 to 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
27

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
26
Density, g/cm3 7.5 to 7.6
8.3
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
2.7
Embodied Energy, MJ/kg 21 to 24
46
Embodied Water, L/kg 44 to 51
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
65
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 5.2 to 11
12
Strength to Weight: Bending, points 8.0 to 13
13
Thermal Diffusivity, mm2/s 11 to 12
35
Thermal Shock Resistance, points 4.2 to 8.6
12