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CC484K Bronze vs. CC755S Brass

Both CC484K bronze and CC755S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is CC484K bronze and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
110
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 11
9.5
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 330
390
Tensile Strength: Yield (Proof), MPa 200
250

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1000
820
Melting Onset (Solidus), °C 870
780
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 70
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.1
27
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
30

Otherwise Unclassified Properties

Base Metal Price, % relative 37
23
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 3.9
2.7
Embodied Energy, MJ/kg 64
46
Embodied Water, L/kg 400
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32
33
Resilience: Unit (Modulus of Resilience), kJ/m3 180
290
Stiffness to Weight: Axial, points 6.9
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10
14
Strength to Weight: Bending, points 12
15
Thermal Diffusivity, mm2/s 22
38
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.4 to 0.7
Antimony (Sb), % 0 to 0.1
0
Copper (Cu), % 84.5 to 87.5
59.5 to 61
Iron (Fe), % 0 to 0.2
0.050 to 0.2
Lead (Pb), % 0 to 0.3
1.2 to 1.7
Manganese (Mn), % 0 to 0.2
0 to 0.050
Nickel (Ni), % 1.5 to 2.5
0 to 0.2
Phosphorus (P), % 0.050 to 0.4
0
Silicon (Si), % 0 to 0.010
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11 to 13
0 to 0.3
Zinc (Zn), % 0 to 0.4
35.8 to 38.9