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C87800 Brass vs. C95820 Bronze

Both C87800 brass and C95820 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% 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 C87800 brass and the bottom bar is C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 25
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
44
Tensile Strength: Ultimate (UTS), MPa 590
730
Tensile Strength: Yield (Proof), MPa 350
310

Thermal Properties

Latent Heat of Fusion, J/g 260
230
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 920
1080
Melting Onset (Solidus), °C 820
1020
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 28
38
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 27
29
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 44
56
Embodied Water, L/kg 300
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
86
Resilience: Unit (Modulus of Resilience), kJ/m3 540
400
Stiffness to Weight: Axial, points 7.4
8.0
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 8.3
11
Thermal Shock Resistance, points 21
25

Alloy Composition

Aluminum (Al), % 0 to 0.15
9.0 to 10
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 80 to 84.2
77.5 to 82.5
Iron (Fe), % 0 to 0.15
4.0 to 5.0
Lead (Pb), % 0 to 0.15
0 to 0.020
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Nickel (Ni), % 0 to 0.2
4.5 to 5.8
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 3.8 to 4.2
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 0.020
Zinc (Zn), % 12 to 16
0 to 0.2
Residuals, % 0
0 to 0.8