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C87500 Brass vs. C84500 Brass

Both C87500 brass and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 (1, in this case) are not shown.

For each property being compared, the top bar is C87500 brass and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 18
28
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
39
Tensile Strength: Ultimate (UTS), MPa 460
240
Tensile Strength: Yield (Proof), MPa 190
97

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 170
150
Melting Completion (Liquidus), °C 920
980
Melting Onset (Solidus), °C 820
840
Specific Heat Capacity, J/kg-K 410
360
Thermal Conductivity, W/m-K 28
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
16
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
17

Otherwise Unclassified Properties

Base Metal Price, % relative 27
28
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
54
Resilience: Unit (Modulus of Resilience), kJ/m3 160
45
Stiffness to Weight: Axial, points 7.4
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 16
7.7
Strength to Weight: Bending, points 16
9.8
Thermal Diffusivity, mm2/s 8.3
23
Thermal Shock Resistance, points 17
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 79 to 85
77 to 79
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0 to 0.5
6.0 to 7.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.0 to 5.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.0 to 4.0
Zinc (Zn), % 12 to 16
10 to 14
Residuals, % 0
0 to 0.7