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C11100 Copper vs. C69710 Brass

Both C11100 copper and C69710 brass are copper alloys. Both are furnished in the H04 (full hard) temper. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C11100 copper and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.5
25
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
41
Shear Strength, MPa 230
300
Tensile Strength: Ultimate (UTS), MPa 460
470
Tensile Strength: Yield (Proof), MPa 420
230

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1080
930
Melting Onset (Solidus), °C 1070
880
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 390
40
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
44
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.6
99
Resilience: Unit (Modulus of Resilience), kJ/m3 750
250
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 14
16
Strength to Weight: Bending, points 15
16
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 16
16

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 99.9 to 100
75 to 80
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Manganese (Mn), % 0
0 to 0.4
Silicon (Si), % 0
2.5 to 3.5
Zinc (Zn), % 0
13.8 to 22
Residuals, % 0
0 to 0.5