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CR011A Copper vs. C87900 Brass

Both CR011A copper and C87900 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% 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 CR011A copper and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
25
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 220
480
Tensile Strength: Yield (Proof), MPa 130
240

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
930
Melting Onset (Solidus), °C 1040
900
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 390
120
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
15
Electrical Conductivity: Equal Weight (Specific), % IACS 100
17

Otherwise Unclassified Properties

Base Metal Price, % relative 32
24
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
46
Embodied Water, L/kg 340
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
100
Resilience: Unit (Modulus of Resilience), kJ/m3 76
270
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
17
Strength to Weight: Bending, points 9.0
17
Thermal Diffusivity, mm2/s 110
37
Thermal Shock Resistance, points 7.8
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.88 to 99.97
63 to 69.2
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.8 to 1.2
Silver (Ag), % 0.030 to 0.050
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
30 to 36