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C84000 Brass vs. C95700 Bronze

Both C84000 brass and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% 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 C84000 brass and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Elongation at Break, % 27
23
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
47
Tensile Strength: Ultimate (UTS), MPa 250
680
Tensile Strength: Yield (Proof), MPa 140
310

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 1040
990
Melting Onset (Solidus), °C 940
950
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 72
12
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
26
Density, g/cm3 8.6
8.2
Embodied Carbon, kg CO2/kg material 3.0
3.3
Embodied Energy, MJ/kg 49
54
Embodied Water, L/kg 330
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
130
Resilience: Unit (Modulus of Resilience), kJ/m3 83
390
Stiffness to Weight: Axial, points 7.2
8.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 8.2
23
Strength to Weight: Bending, points 10
21
Thermal Diffusivity, mm2/s 22
3.3
Thermal Shock Resistance, points 9.0
21

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
7.0 to 8.5
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
71 to 78.5
Iron (Fe), % 0 to 0.4
2.0 to 4.0
Lead (Pb), % 0 to 0.090
0 to 0.030
Manganese (Mn), % 0 to 0.010
11 to 14
Nickel (Ni), % 0.5 to 2.0
1.5 to 3.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.5