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C64200 Bronze vs. C69710 Brass

Both C64200 bronze and C69710 brass are copper alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is C64200 bronze and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 14 to 35
25
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 42
41
Shear Strength, MPa 330 to 390
300
Tensile Strength: Ultimate (UTS), MPa 540 to 640
470
Tensile Strength: Yield (Proof), MPa 230 to 320
230

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 1000
930
Melting Onset (Solidus), °C 980
880
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 45
40
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 50
44
Embodied Water, L/kg 370
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 170
99
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 470
250
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18 to 21
16
Strength to Weight: Bending, points 18 to 20
16
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 20 to 23
16

Alloy Composition


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Aluminum (Al), % 6.3 to 7.6
0
Arsenic (As), % 0 to 0.15
0.030 to 0.060
Copper (Cu), % 88.2 to 92.2
75 to 80
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 0 to 0.050
0.5 to 1.5
Manganese (Mn), % 0 to 0.1
0 to 0.4
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 1.5 to 2.2
2.5 to 3.5
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
13.8 to 22
Residuals, % 0 to 0.5
0 to 0.5