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C87500 Brass vs. C47000 Brass

Both C87500 brass and C47000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 73% of their average alloy composition in common. There are 26 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 C87500 brass and the bottom bar is C47000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 18
36
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 460
380
Tensile Strength: Yield (Proof), MPa 190
150

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 920
900
Melting Onset (Solidus), °C 820
890
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 28
120
Thermal Expansion, µm/m-K 18
21

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
100
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
13
Strength to Weight: Bending, points 16
15
Thermal Diffusivity, mm2/s 8.3
38
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.010
Copper (Cu), % 79 to 85
57 to 61
Lead (Pb), % 0 to 0.5
0 to 0.050
Silicon (Si), % 3.0 to 5.0
0
Tin (Sn), % 0
0.25 to 1.0
Zinc (Zn), % 12 to 16
37.5 to 42.8
Residuals, % 0
0 to 0.4