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As-cast C82000 Copper vs. As-cast C99750 Brass

Both as-cast C82000 copper and as-cast C99750 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 58% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is as-cast C82000 copper and the bottom bar is as-cast C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
130
Elongation at Break, % 20
30
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 55
77
Shear Modulus, GPa 45
48
Tensile Strength: Ultimate (UTS), MPa 350
450
Tensile Strength: Yield (Proof), MPa 140
220

Thermal Properties

Latent Heat of Fusion, J/g 220
200
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1090
840
Melting Onset (Solidus), °C 970
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 46
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 60
23
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.0
3.1
Embodied Energy, MJ/kg 77
51
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
110
Resilience: Unit (Modulus of Resilience), kJ/m3 80
190
Stiffness to Weight: Axial, points 7.5
8.6
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 12
16
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.25 to 3.0
Beryllium (Be), % 0.45 to 0.8
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 2.2 to 2.7
0
Copper (Cu), % 95.2 to 97.4
55 to 61
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.020
0.5 to 2.5
Manganese (Mn), % 0
17 to 23
Nickel (Ni), % 0 to 0.2
0 to 5.0
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
17 to 23
Residuals, % 0
0 to 0.3