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C91100 Bronze vs. C34500 Brass

Both C91100 bronze and C34500 brass are copper alloys. They have 64% 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 C34500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 2.0
12 to 28
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 240
340 to 430
Tensile Strength: Yield (Proof), MPa 170
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 950
910
Melting Onset (Solidus), °C 820
890
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 63
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
29

Otherwise Unclassified Properties

Base Metal Price, % relative 38
24
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 4.2
2.6
Embodied Energy, MJ/kg 69
45
Embodied Water, L/kg 440
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 140
69 to 160
Stiffness to Weight: Axial, points 6.7
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.7
12 to 15
Strength to Weight: Bending, points 9.9
13 to 16
Thermal Diffusivity, mm2/s 20
37
Thermal Shock Resistance, points 9.1
11 to 14

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 82 to 85
62 to 65
Iron (Fe), % 0 to 0.25
0 to 0.15
Lead (Pb), % 0 to 0.25
1.5 to 2.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 1.0
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 15 to 17
0
Zinc (Zn), % 0 to 0.25
32 to 36.5
Residuals, % 0
0 to 0.4