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C66900 Brass vs. C87400 Brass

Both C66900 brass and C87400 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 C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.1 to 26
21
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 460 to 770
390
Tensile Strength: Yield (Proof), MPa 330 to 760
160

Thermal Properties

Latent Heat of Fusion, J/g 190
250
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
400
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
7.2

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
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
65
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
120
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 26
13
Strength to Weight: Bending, points 16 to 23
14
Thermal Shock Resistance, points 14 to 23
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 62.5 to 64.5
79 to 85.5
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.050
0 to 1.0
Manganese (Mn), % 11.5 to 12.5
0
Silicon (Si), % 0
2.5 to 4.0
Zinc (Zn), % 22.5 to 26
12 to 16
Residuals, % 0
0 to 0.8