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C68400 Brass vs. Ductile Cast Iron

C68400 brass belongs to the copper alloys classification, while ductile cast iron belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 110
170 to 180
Elongation at Break, % 18
2.1 to 20
Poisson's Ratio 0.31
0.28 to 0.31
Shear Modulus, GPa 41
64 to 70
Shear Strength, MPa 330
420 to 800
Tensile Strength: Ultimate (UTS), MPa 540
460 to 920
Tensile Strength: Yield (Proof), MPa 310
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 130
290
Melting Completion (Liquidus), °C 840
1160
Melting Onset (Solidus), °C 820
1120
Specific Heat Capacity, J/kg-K 400
490
Thermal Conductivity, W/m-K 66
31 to 36
Thermal Expansion, µm/m-K 20
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.9
Density, g/cm3 7.9
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 47
21
Embodied Water, L/kg 320
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 460
280 to 1330
Stiffness to Weight: Axial, points 7.5
12 to 14
Stiffness to Weight: Bending, points 20
24 to 26
Strength to Weight: Axial, points 19
17 to 35
Strength to Weight: Bending, points 19
18 to 29
Thermal Diffusivity, mm2/s 21
8.9 to 10
Thermal Shock Resistance, points 18
17 to 35

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
3.0 to 3.5
Copper (Cu), % 59 to 64
0
Iron (Fe), % 0 to 1.0
93.7 to 95.5
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0 to 0.080
Silicon (Si), % 1.5 to 2.5
1.5 to 2.8
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0