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C87500 Brass vs. C42500 Brass

Both C87500 brass and C42500 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 C87500 brass and the bottom bar is C42500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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