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C90900 Bronze vs. CC495K Bronze

Both C90900 bronze and CC495K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 90% of their average alloy composition in common.

For each property being compared, the top bar is C90900 bronze and the bottom bar is CC495K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
76
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 15
7.0
Poisson's Ratio 0.34
0.35
Shear Modulus, GPa 40
37
Tensile Strength: Ultimate (UTS), MPa 280
240
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
140
Melting Completion (Liquidus), °C 980
930
Melting Onset (Solidus), °C 820
820
Specific Heat Capacity, J/kg-K 360
350
Thermal Conductivity, W/m-K 65
48
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
10
Electrical Conductivity: Equal Weight (Specific), % IACS 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 36
33
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 3.9
3.6
Embodied Energy, MJ/kg 64
58
Embodied Water, L/kg 410
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
14
Resilience: Unit (Modulus of Resilience), kJ/m3 89
68
Stiffness to Weight: Axial, points 6.8
6.2
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 8.8
7.3
Strength to Weight: Bending, points 11
9.4
Thermal Diffusivity, mm2/s 21
15
Thermal Shock Resistance, points 10
8.8

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.010
Antimony (Sb), % 0 to 0.2
0 to 0.5
Copper (Cu), % 86 to 89
76 to 82
Iron (Fe), % 0 to 0.15
0 to 0.25
Lead (Pb), % 0 to 0.25
8.0 to 11
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 2.0
Phosphorus (P), % 0 to 0.050
0 to 0.1
Silicon (Si), % 0 to 0.0050
0 to 0.010
Sulfur (S), % 0 to 0.050
0 to 0.1
Tin (Sn), % 12 to 14
9.0 to 11
Zinc (Zn), % 0 to 0.25
0 to 2.0
Residuals, % 0 to 0.6
0