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C85400 Brass vs. CR024A Copper

Both C85400 brass and CR024A copper 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 C85400 brass and the bottom bar is CR024A copper.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 940
1090
Melting Onset (Solidus), °C 940
1040
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 89
370
Thermal Expansion, µm/m-K 20
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 330
320

Common Calculations

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

Alloy Composition


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Aluminum (Al), % 0 to 0.35
0
Copper (Cu), % 65 to 70
99.9 to 99.985
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 1.5 to 3.8
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0
0.015 to 0.040
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 24 to 32
0
Residuals, % 0 to 1.1
0