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CR004A Copper vs. C84500 Brass

Both CR004A copper and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% 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 CR004A copper and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
28
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
39
Tensile Strength: Ultimate (UTS), MPa 220
240
Tensile Strength: Yield (Proof), MPa 130
97

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1090
980
Melting Onset (Solidus), °C 1040
840
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 380
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
16
Electrical Conductivity: Equal Weight (Specific), % IACS 100
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
28
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
54
Resilience: Unit (Modulus of Resilience), kJ/m3 76
45
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 6.8
7.7
Strength to Weight: Bending, points 9.0
9.8
Thermal Diffusivity, mm2/s 110
23
Thermal Shock Resistance, points 7.8
8.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.9 to 100
77 to 79
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0 to 0.0050
6.0 to 7.5
Nickel (Ni), % 0
0 to 1.0
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.0 to 4.0
Zinc (Zn), % 0
10 to 14
Residuals, % 0
0 to 0.7