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C91100 Bronze vs. CC764S Brass

Both C91100 bronze and CC764S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C91100 bronze and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 2.0
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 39
41
Tensile Strength: Ultimate (UTS), MPa 240
680
Tensile Strength: Yield (Proof), MPa 170
290

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 950
850
Melting Onset (Solidus), °C 820
810
Specific Heat Capacity, J/kg-K 360
400
Thermal Conductivity, W/m-K 63
94
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
36

Otherwise Unclassified Properties

Base Metal Price, % relative 38
23
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 4.2
2.9
Embodied Energy, MJ/kg 69
49
Embodied Water, L/kg 440
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
80
Resilience: Unit (Modulus of Resilience), kJ/m3 140
390
Stiffness to Weight: Axial, points 6.7
7.6
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.7
24
Strength to Weight: Bending, points 9.9
22
Thermal Diffusivity, mm2/s 20
30
Thermal Shock Resistance, points 9.1
22

Alloy Composition

Aluminum (Al), % 0 to 0.0050
1.0 to 3.0
Antimony (Sb), % 0 to 0.2
0 to 0.050
Copper (Cu), % 82 to 85
52 to 66
Iron (Fe), % 0 to 0.25
0.5 to 2.5
Lead (Pb), % 0 to 0.25
0 to 0.3
Manganese (Mn), % 0
0.3 to 4.0
Nickel (Ni), % 0 to 0.5
0 to 3.0
Phosphorus (P), % 0 to 1.0
0 to 0.030
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 15 to 17
0 to 0.3
Zinc (Zn), % 0 to 0.25
20.7 to 50.2