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CC495K Bronze vs. CC484K Bronze

Both CC495K bronze and CC484K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is CC495K bronze and the bottom bar is CC484K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 76
100
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 7.0
11
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 37
41
Tensile Strength: Ultimate (UTS), MPa 240
330
Tensile Strength: Yield (Proof), MPa 120
200

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 140
170
Melting Completion (Liquidus), °C 930
1000
Melting Onset (Solidus), °C 820
870
Specific Heat Capacity, J/kg-K 350
370
Thermal Conductivity, W/m-K 48
70
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
9.1
Electrical Conductivity: Equal Weight (Specific), % IACS 10
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
37
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 3.6
3.9
Embodied Energy, MJ/kg 58
64
Embodied Water, L/kg 400
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
32
Resilience: Unit (Modulus of Resilience), kJ/m3 68
180
Stiffness to Weight: Axial, points 6.2
6.9
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 7.3
10
Strength to Weight: Bending, points 9.4
12
Thermal Diffusivity, mm2/s 15
22
Thermal Shock Resistance, points 8.8
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.5
0 to 0.1
Copper (Cu), % 76 to 82
84.5 to 87.5
Iron (Fe), % 0 to 0.25
0 to 0.2
Lead (Pb), % 8.0 to 11
0 to 0.3
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0 to 2.0
1.5 to 2.5
Phosphorus (P), % 0 to 0.1
0.050 to 0.4
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.1
0 to 0.050
Tin (Sn), % 9.0 to 11
11 to 13
Zinc (Zn), % 0 to 2.0
0 to 0.4