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C66900 Brass vs. C87500 Brass

Both C66900 brass and C87500 brass are copper alloys. They have 78% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.1 to 26
18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
42
Tensile Strength: Ultimate (UTS), MPa 460 to 770
460
Tensile Strength: Yield (Proof), MPa 330 to 760
190

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 860
920
Melting Onset (Solidus), °C 850
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
67
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
160
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 26
16
Strength to Weight: Bending, points 16 to 23
16
Thermal Shock Resistance, points 14 to 23
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 62.5 to 64.5
79 to 85
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.050
0 to 0.5
Manganese (Mn), % 11.5 to 12.5
0
Silicon (Si), % 0
3.0 to 5.0
Zinc (Zn), % 22.5 to 26
12 to 16
Residuals, % 0
0 to 0.5