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C86700 Bronze vs. C34500 Brass

Both C86700 bronze and C34500 brass are copper alloys. They have a moderately high 93% 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 C86700 bronze and the bottom bar is C34500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
12 to 28
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
340 to 430
Tensile Strength: Yield (Proof), MPa 250
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 880
910
Melting Onset (Solidus), °C 860
890
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 89
120
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
26
Electrical Conductivity: Equal Weight (Specific), % IACS 19
29

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 49
45
Embodied Water, L/kg 340
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 290
69 to 160
Stiffness to Weight: Axial, points 7.5
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 22
12 to 15
Strength to Weight: Bending, points 21
13 to 16
Thermal Diffusivity, mm2/s 28
37
Thermal Shock Resistance, points 21
11 to 14

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0
Copper (Cu), % 55 to 60
62 to 65
Iron (Fe), % 1.0 to 3.0
0 to 0.15
Lead (Pb), % 0.5 to 1.5
1.5 to 2.5
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0
Tin (Sn), % 0 to 1.5
0
Zinc (Zn), % 30 to 38
32 to 36.5
Residuals, % 0
0 to 0.4