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C91100 Bronze vs. C84500 Brass

Both C91100 bronze and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% 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 C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 2.0
28
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
39
Tensile Strength: Ultimate (UTS), MPa 240
240
Tensile Strength: Yield (Proof), MPa 170
97

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 950
980
Melting Onset (Solidus), °C 820
840
Specific Heat Capacity, J/kg-K 360
360
Thermal Conductivity, W/m-K 63
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
17

Otherwise Unclassified Properties

Base Metal Price, % relative 38
28
Density, g/cm3 8.7
8.7
Embodied Carbon, kg CO2/kg material 4.2
2.9
Embodied Energy, MJ/kg 69
47
Embodied Water, L/kg 440
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
54
Resilience: Unit (Modulus of Resilience), kJ/m3 140
45
Stiffness to Weight: Axial, points 6.7
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.7
7.7
Strength to Weight: Bending, points 9.9
9.8
Thermal Diffusivity, mm2/s 20
23
Thermal Shock Resistance, points 9.1
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.25
Copper (Cu), % 82 to 85
77 to 79
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 0 to 0.25
6.0 to 7.5
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 1.0
0 to 0.020
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.080
Tin (Sn), % 15 to 17
2.0 to 4.0
Zinc (Zn), % 0 to 0.25
10 to 14
Residuals, % 0
0 to 0.7