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CR020A Copper vs. CC750S Brass

Both CR020A copper and CC750S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 65% 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 CR020A copper and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
13
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 220
200
Tensile Strength: Yield (Proof), MPa 130
80

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
860
Melting Onset (Solidus), °C 1040
810
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
110
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
24
Electrical Conductivity: Equal Weight (Specific), % IACS 100
26

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
22
Resilience: Unit (Modulus of Resilience), kJ/m3 76
30
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8
6.8
Strength to Weight: Bending, points 9.0
9.3
Thermal Diffusivity, mm2/s 110
35
Thermal Shock Resistance, points 7.8
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.95 to 99.999
62 to 67
Iron (Fe), % 0
0 to 0.8
Lead (Pb), % 0 to 0.0050
1.0 to 3.0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0.0010 to 0.0060
0 to 0.050
Silicon (Si), % 0
0 to 0.050
Silver (Ag), % 0 to 0.015
0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 0
26.3 to 36