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C85900 Brass vs. C95700 Bronze

Both C85900 brass and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 62% of their average alloy composition in common. There are 28 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 C85900 brass and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
130
Elongation at Break, % 30
23
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
47
Tensile Strength: Ultimate (UTS), MPa 460
680
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 170
230
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 830
990
Melting Onset (Solidus), °C 790
950
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 89
12
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 28
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
26
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 49
54
Embodied Water, L/kg 330
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
390
Stiffness to Weight: Axial, points 7.3
8.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 16
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 29
3.3
Thermal Shock Resistance, points 16
21

Alloy Composition

Aluminum (Al), % 0.1 to 0.6
7.0 to 8.5
Antimony (Sb), % 0 to 0.2
0
Boron (B), % 0 to 0.2
0
Copper (Cu), % 58 to 62
71 to 78.5
Iron (Fe), % 0 to 0.5
2.0 to 4.0
Lead (Pb), % 0 to 0.090
0 to 0.030
Manganese (Mn), % 0 to 0.010
11 to 14
Nickel (Ni), % 0 to 1.5
1.5 to 3.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.25
0 to 0.1
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 0 to 1.5
0
Zinc (Zn), % 31 to 41
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.5