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Ductile Cast Iron vs. C37100 Brass

Ductile cast iron belongs to the iron alloys classification, while C37100 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
100
Elongation at Break, % 2.1 to 20
8.0 to 40
Poisson's Ratio 0.28 to 0.31
0.31
Shear Modulus, GPa 64 to 70
40
Shear Strength, MPa 420 to 800
260 to 300
Tensile Strength: Ultimate (UTS), MPa 460 to 920
370 to 520
Tensile Strength: Yield (Proof), MPa 310 to 670
150 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Maximum Temperature: Mechanical, °C 290
120
Melting Completion (Liquidus), °C 1160
900
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
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
30

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
23
Density, g/cm3 7.1 to 7.5
8.0
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 21
45
Embodied Water, L/kg 43
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
38 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
110 to 750
Stiffness to Weight: Axial, points 12 to 14
7.2
Stiffness to Weight: Bending, points 24 to 26
20
Strength to Weight: Axial, points 17 to 35
13 to 18
Strength to Weight: Bending, points 18 to 29
14 to 18
Thermal Diffusivity, mm2/s 8.9 to 10
39
Thermal Shock Resistance, points 17 to 35
12 to 17

Alloy Composition

Carbon (C), % 3.0 to 3.5
0
Copper (Cu), % 0
58 to 62
Iron (Fe), % 93.7 to 95.5
0 to 0.15
Lead (Pb), % 0
0.6 to 1.2
Phosphorus (P), % 0 to 0.080
0
Silicon (Si), % 1.5 to 2.8
0
Zinc (Zn), % 0
36.3 to 41.4
Residuals, % 0
0 to 0.4

Comparable Variants