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C68400 Brass vs. C87200 Bronze

Both C68400 brass and C87200 bronze are copper alloys. They have 68% of their average alloy composition in common. There are 29 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 C87200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
85
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
30
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 540
380
Tensile Strength: Yield (Proof), MPa 310
170

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 840
970
Melting Onset (Solidus), °C 820
860
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 66
28
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
44
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
93
Resilience: Unit (Modulus of Resilience), kJ/m3 460
130
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 21
8.0
Thermal Shock Resistance, points 18
14

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0 to 1.5
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
89 to 99
Iron (Fe), % 0 to 1.0
0 to 2.5
Lead (Pb), % 0 to 0.090
0 to 0.5
Manganese (Mn), % 0.2 to 1.5
0 to 1.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0 to 0.5
Silicon (Si), % 1.5 to 2.5
1.0 to 5.0
Tin (Sn), % 0 to 0.5
0 to 1.0
Zinc (Zn), % 28.6 to 39.3
0 to 5.0
Residuals, % 0 to 0.5
0