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C68400 Brass vs. C61800 Bronze

Both C68400 brass and C61800 bronze are copper alloys. They have 63% of their average alloy composition in common. 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 C68400 brass and the bottom bar is C61800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
26
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
44
Shear Strength, MPa 330
310
Tensile Strength: Ultimate (UTS), MPa 540
740
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 210
230
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 840
1050
Melting Onset (Solidus), °C 820
1040
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 66
64
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
13
Electrical Conductivity: Equal Weight (Specific), % IACS 99
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
28
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 47
52
Embodied Water, L/kg 320
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
150
Resilience: Unit (Modulus of Resilience), kJ/m3 460
420
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 21
18
Thermal Shock Resistance, points 18
26

Alloy Composition


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Aluminum (Al), % 0 to 0.5
8.5 to 11
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
86.9 to 91
Iron (Fe), % 0 to 1.0
0.5 to 1.5
Lead (Pb), % 0 to 0.090
0 to 0.020
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0 to 0.1
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0 to 0.020
Residuals, % 0 to 0.5
0 to 0.5