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Grey Cast Iron vs. C85700 Brass

Grey cast iron belongs to the iron alloys classification, while C85700 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 grey cast iron and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
100
Elongation at Break, % 9.6
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 69
40
Tensile Strength: Ultimate (UTS), MPa 160 to 450
310
Tensile Strength: Yield (Proof), MPa 98 to 290
110

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Melting Completion (Liquidus), °C 1380
940
Melting Onset (Solidus), °C 1180
910
Specific Heat Capacity, J/kg-K 490
380
Thermal Conductivity, W/m-K 46
84
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
22
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
25

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
24
Density, g/cm3 7.5
8.0
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 21
47
Embodied Water, L/kg 44
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
41
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
59
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 5.8 to 17
11
Strength to Weight: Bending, points 8.7 to 17
13
Thermal Diffusivity, mm2/s 13
27
Thermal Shock Resistance, points 6.0 to 17
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 3.1 to 3.4
0
Copper (Cu), % 0
58 to 64
Iron (Fe), % 92.1 to 93.9
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.5 to 0.7
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.9
0
Silicon (Si), % 2.5 to 2.8
0 to 0.050
Sulfur (S), % 0 to 0.15
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
32 to 40
Residuals, % 0
0 to 1.3