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Ductile Cast Iron vs. C34000 Brass

Ductile cast iron belongs to the iron alloys classification, while C34000 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is C34000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
100
Poisson's Ratio 0.28 to 0.31
0.31
Shear Modulus, GPa 64 to 70
40
Tensile Strength: Ultimate (UTS), MPa 460 to 920
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Maximum Temperature: Mechanical, °C 290
120
Melting Completion (Liquidus), °C 1160
930
Melting Onset (Solidus), °C 1120
890
Specific Heat Capacity, J/kg-K 490
380
Thermal Conductivity, W/m-K 31 to 36
120
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
29

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
24
Density, g/cm3 7.1 to 7.5
8.1
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 21
45
Embodied Water, L/kg 43
320

Common Calculations

Stiffness to Weight: Axial, points 12 to 14
7.1
Stiffness to Weight: Bending, points 24 to 26
19
Strength to Weight: Axial, points 17 to 35
11 to 22
Strength to Weight: Bending, points 18 to 29
13 to 21
Thermal Diffusivity, mm2/s 8.9 to 10
37
Thermal Shock Resistance, points 17 to 35
11 to 22

Alloy Composition

Carbon (C), % 3.0 to 3.5
0
Copper (Cu), % 0
62 to 65
Iron (Fe), % 93.7 to 95.5
0 to 0.1
Lead (Pb), % 0
0.8 to 1.5
Phosphorus (P), % 0 to 0.080
0
Silicon (Si), % 1.5 to 2.8
0
Zinc (Zn), % 0
33 to 37.2
Residuals, % 0
0 to 0.4

Comparable Variants