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C68100 Brass vs. Grey Cast Iron

C68100 brass belongs to the copper alloys classification, while grey cast iron belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C68100 brass and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
180
Elongation at Break, % 29
9.6
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 40
69
Tensile Strength: Ultimate (UTS), MPa 380
160 to 450
Tensile Strength: Yield (Proof), MPa 140
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Melting Completion (Liquidus), °C 890
1380
Melting Onset (Solidus), °C 870
1180
Specific Heat Capacity, J/kg-K 390
490
Thermal Conductivity, W/m-K 98
46
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 27
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.9
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 47
21
Embodied Water, L/kg 330
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 94
27 to 240
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 13
5.8 to 17
Strength to Weight: Bending, points 15
8.7 to 17
Thermal Diffusivity, mm2/s 32
13
Thermal Shock Resistance, points 13
6.0 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 56 to 60
0
Iron (Fe), % 0.25 to 1.3
92.1 to 93.9
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.010 to 0.5
0.5 to 0.7
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0.040 to 0.15
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Tin (Sn), % 0.75 to 1.1
0
Zinc (Zn), % 36.4 to 43
0
Residuals, % 0 to 0.5
0