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C61500 Bronze vs. C68700 Brass

Both C61500 bronze and C68700 brass are copper alloys. They have 80% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C61500 bronze and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 480 to 970
390
Tensile Strength: Yield (Proof), MPa 150 to 720
140

Thermal Properties

Latent Heat of Fusion, J/g 220
190
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1040
970
Melting Onset (Solidus), °C 1030
930
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 58
100
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
23
Electrical Conductivity: Equal Weight (Specific), % IACS 13
25

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 380
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 2310
90
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 32
13
Strength to Weight: Bending, points 16 to 26
14
Thermal Diffusivity, mm2/s 16
30
Thermal Shock Resistance, points 17 to 34
13

Alloy Composition

Aluminum (Al), % 7.7 to 8.3
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 89 to 90.5
76 to 79
Iron (Fe), % 0
0 to 0.060
Lead (Pb), % 0 to 0.015
0 to 0.070
Nickel (Ni), % 1.8 to 2.2
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5