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C69430 Brass vs. C86700 Bronze

Both C69430 brass and C86700 bronze are copper alloys. They have 72% 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 C69430 brass and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 570
630
Tensile Strength: Yield (Proof), MPa 280
250

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 920
880
Melting Onset (Solidus), °C 820
860
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 26
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
17
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
19

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 44
49
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
86
Resilience: Unit (Modulus of Resilience), kJ/m3 340
290
Stiffness to Weight: Axial, points 7.4
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 7.7
28
Thermal Shock Resistance, points 20
21

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 80 to 83
55 to 60
Iron (Fe), % 0 to 0.2
1.0 to 3.0
Lead (Pb), % 0 to 0.3
0.5 to 1.5
Manganese (Mn), % 0
1.0 to 3.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 3.5 to 4.5
0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 11.4 to 16.5
30 to 38
Residuals, % 0
0 to 1.0