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C42500 Brass vs. C87500 Brass

Both C42500 brass and C87500 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 28 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 C42500 brass and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.0 to 49
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 310 to 630
460
Tensile Strength: Yield (Proof), MPa 120 to 590
190

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 1030
920
Melting Onset (Solidus), °C 1010
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 29
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
27
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 130
67
Resilience: Unit (Modulus of Resilience), kJ/m3 64 to 1570
160
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.9 to 20
16
Strength to Weight: Bending, points 12 to 19
16
Thermal Diffusivity, mm2/s 36
8.3
Thermal Shock Resistance, points 11 to 22
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 87 to 90
79 to 85
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0 to 0.5
Phosphorus (P), % 0 to 0.35
0
Silicon (Si), % 0
3.0 to 5.0
Tin (Sn), % 1.5 to 3.0
0
Zinc (Zn), % 6.1 to 11.5
12 to 16
Residuals, % 0
0 to 0.5