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C84000 Brass vs. C94500 Bronze

Both C84000 brass and C94500 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is C84000 brass and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
50
Elastic (Young's, Tensile) Modulus, GPa 110
92
Elongation at Break, % 27
12
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 42
34
Tensile Strength: Ultimate (UTS), MPa 250
170
Tensile Strength: Yield (Proof), MPa 140
83

Thermal Properties

Latent Heat of Fusion, J/g 190
160
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1040
940
Melting Onset (Solidus), °C 940
800
Specific Heat Capacity, J/kg-K 380
330
Thermal Conductivity, W/m-K 72
52
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
10
Electrical Conductivity: Equal Weight (Specific), % IACS 17
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
30
Density, g/cm3 8.6
9.3
Embodied Carbon, kg CO2/kg material 3.0
3.2
Embodied Energy, MJ/kg 49
51
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
17
Resilience: Unit (Modulus of Resilience), kJ/m3 83
37
Stiffness to Weight: Axial, points 7.2
5.5
Stiffness to Weight: Bending, points 19
16
Strength to Weight: Axial, points 8.2
5.2
Strength to Weight: Bending, points 10
7.4
Thermal Diffusivity, mm2/s 22
17
Thermal Shock Resistance, points 9.0
6.7

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.020
0 to 0.8
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
66.7 to 78
Iron (Fe), % 0 to 0.4
0 to 0.15
Lead (Pb), % 0 to 0.090
16 to 22
Manganese (Mn), % 0 to 0.010
0
Nickel (Ni), % 0.5 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.050
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0.1 to 0.65
0 to 0.080
Tin (Sn), % 2.0 to 4.0
6.0 to 8.0
Zinc (Zn), % 5.0 to 14
0 to 1.2
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0