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C87200 Bronze vs. C68400 Brass

Both C87200 bronze and C68400 brass 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 C87200 bronze and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition


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