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C81500 Copper vs. C84500 Brass

Both C81500 copper and C84500 brass are copper alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C81500 copper and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
55
Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 17
28
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
39
Tensile Strength: Ultimate (UTS), MPa 350
240
Tensile Strength: Yield (Proof), MPa 280
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 1080
840
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 320
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
16
Electrical Conductivity: Equal Weight (Specific), % IACS 83
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
28
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
54
Resilience: Unit (Modulus of Resilience), kJ/m3 330
45
Stiffness to Weight: Axial, points 7.3
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11
7.7
Strength to Weight: Bending, points 12
9.8
Thermal Diffusivity, mm2/s 91
23
Thermal Shock Resistance, points 12
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
77 to 79
Iron (Fe), % 0 to 0.1
0 to 0.4
Lead (Pb), % 0 to 0.020
6.0 to 7.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.15
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.1
2.0 to 4.0
Zinc (Zn), % 0 to 0.1
10 to 14
Residuals, % 0 to 0.5
0 to 0.7