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C92300 Bronze vs. C84800 Brass

Both C92300 bronze and C84800 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is C92300 bronze and the bottom bar is C84800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 19
18
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 300
230
Tensile Strength: Yield (Proof), MPa 140
100

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
150
Melting Completion (Liquidus), °C 1000
950
Melting Onset (Solidus), °C 850
830
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 75
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
16
Electrical Conductivity: Equal Weight (Specific), % IACS 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
27
Density, g/cm3 8.7
8.6
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47
34
Resilience: Unit (Modulus of Resilience), kJ/m3 86
53
Stiffness to Weight: Axial, points 6.9
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 9.5
7.3
Strength to Weight: Bending, points 11
9.6
Thermal Diffusivity, mm2/s 23
23
Thermal Shock Resistance, points 11
8.2

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 85 to 89
75 to 77
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 0.3 to 1.0
5.5 to 7.0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.080
Tin (Sn), % 7.5 to 9.0
2.0 to 3.0
Zinc (Zn), % 2.5 to 5.0
13 to 17
Residuals, % 0 to 0.7
0 to 0.7