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CC480K Bronze vs. C85400 Brass

Both CC480K bronze and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common.

For each property being compared, the top bar is CC480K bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 88
55
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 300
220
Tensile Strength: Yield (Proof), MPa 180
85

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1010
940
Melting Onset (Solidus), °C 900
940
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 63
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
20
Electrical Conductivity: Equal Weight (Specific), % IACS 11
22

Otherwise Unclassified Properties

Base Metal Price, % relative 35
25
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 3.7
2.8
Embodied Energy, MJ/kg 59
46
Embodied Water, L/kg 390
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
40
Resilience: Unit (Modulus of Resilience), kJ/m3 140
35
Stiffness to Weight: Axial, points 6.9
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.6
7.5
Strength to Weight: Bending, points 11
9.9
Thermal Diffusivity, mm2/s 20
28
Thermal Shock Resistance, points 11
7.6

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.35
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 90
65 to 70
Iron (Fe), % 0 to 0.2
0 to 0.7
Lead (Pb), % 0 to 1.0
1.5 to 3.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 0.020
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0.5 to 1.5
Zinc (Zn), % 0 to 0.5
24 to 32
Residuals, % 0
0 to 1.1