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C32000 Brass vs. CR007A Copper

Both C32000 brass and CR007A copper are copper alloys. They have 85% 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 C32000 brass and the bottom bar is CR007A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 270 to 470
230
Tensile Strength: Yield (Proof), MPa 78 to 390
140

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1020
1090
Melting Onset (Solidus), °C 990
1040
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
100
Electrical Conductivity: Equal Weight (Specific), % IACS 37
100

Otherwise Unclassified Properties

Base Metal Price, % relative 28
31
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 42
41
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
31
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
83
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.8 to 15
7.1
Strength to Weight: Bending, points 11 to 16
9.3
Thermal Diffusivity, mm2/s 47
110
Thermal Shock Resistance, points 9.5 to 16
8.1

Alloy Composition


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Antimony (Sb), % 0
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Copper (Cu), % 83.5 to 86.5
99.994 to 100
Iron (Fe), % 0 to 0.1
0 to 0.0010
Lead (Pb), % 1.5 to 2.2
0 to 0.00050
Nickel (Ni), % 0 to 0.25
0
Selenium (Se), % 0
0 to 0.00020
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Zinc (Zn), % 10.6 to 15
0
Residuals, % 0 to 0.4
0