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C66900 Brass vs. C81500 Copper

Both C66900 brass and C81500 copper are copper alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is C81500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 1.1 to 26
17
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 45
44
Tensile Strength: Ultimate (UTS), MPa 460 to 770
350
Tensile Strength: Yield (Proof), MPa 330 to 760
280

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 860
1090
Melting Onset (Solidus), °C 850
1080
Specific Heat Capacity, J/kg-K 400
390
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
82
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
83

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
56
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
330
Stiffness to Weight: Axial, points 8.1
7.3
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 15 to 26
11
Strength to Weight: Bending, points 16 to 23
12
Thermal Shock Resistance, points 14 to 23
12

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Chromium (Cr), % 0
0.4 to 1.5
Copper (Cu), % 62.5 to 64.5
97.4 to 99.6
Iron (Fe), % 0 to 0.25
0 to 0.1
Lead (Pb), % 0 to 0.050
0 to 0.020
Manganese (Mn), % 11.5 to 12.5
0
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 22.5 to 26
0 to 0.1
Residuals, % 0 to 0.2
0 to 0.5