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Automotive Grey Cast Iron vs. C66700 Brass

Automotive grey cast iron belongs to the iron alloys classification, while C66700 brass belongs to the copper alloys. There are 27 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 C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Elongation at Break, % 9.6 to 14
2.0 to 58
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 69 to 70
41
Tensile Strength: Ultimate (UTS), MPa 140 to 290
340 to 690
Tensile Strength: Yield (Proof), MPa 94 to 200
100 to 640

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
180
Melting Completion (Liquidus), °C 1380 to 1390
1090
Melting Onset (Solidus), °C 1340 to 1350
1050
Specific Heat Capacity, J/kg-K 490
390
Thermal Conductivity, W/m-K 41 to 43
97
Thermal Expansion, µm/m-K 12 to 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
17
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
19

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
25
Density, g/cm3 7.5 to 7.6
8.2
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
2.7
Embodied Energy, MJ/kg 21 to 24
45
Embodied Water, L/kg 44 to 51
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
13 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
49 to 1900
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 5.2 to 11
11 to 23
Strength to Weight: Bending, points 8.0 to 13
13 to 21
Thermal Diffusivity, mm2/s 11 to 12
30
Thermal Shock Resistance, points 4.2 to 8.6
11 to 23