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CR007A Copper vs. C85400 Brass

Both CR007A copper and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% 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 CR007A copper and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 230
220
Tensile Strength: Yield (Proof), MPa 140
85

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
940
Melting Onset (Solidus), °C 1040
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
20
Electrical Conductivity: Equal Weight (Specific), % IACS 100
22

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
40
Resilience: Unit (Modulus of Resilience), kJ/m3 83
35
Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.1
7.5
Strength to Weight: Bending, points 9.3
9.9
Thermal Diffusivity, mm2/s 110
28
Thermal Shock Resistance, points 8.1
7.6

Alloy Composition


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Aluminum (Al), % 0
0 to 0.35
Antimony (Sb), % 0 to 0.00040
0
Arsenic (As), % 0 to 0.00050
0
Bismuth (Bi), % 0 to 0.00020
0
Copper (Cu), % 99.994 to 100
65 to 70
Iron (Fe), % 0 to 0.0010
0 to 0.7
Lead (Pb), % 0 to 0.00050
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Selenium (Se), % 0 to 0.00020
0
Silicon (Si), % 0
0 to 0.050
Silver (Ag), % 0 to 0.0025
0
Sulfur (S), % 0 to 0.0015
0
Tellurium (Te), % 0 to 0.00020
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1