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CC499K Bronze vs. C85900 Brass

Both CC499K bronze and C85900 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is CC499K bronze and the bottom bar is C85900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
85
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
30
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 260
460
Tensile Strength: Yield (Proof), MPa 120
190

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1000
830
Melting Onset (Solidus), °C 920
790
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 73
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
25
Electrical Conductivity: Equal Weight (Specific), % IACS 12
28

Otherwise Unclassified Properties

Base Metal Price, % relative 32
24
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 51
49
Embodied Water, L/kg 350
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
110
Resilience: Unit (Modulus of Resilience), kJ/m3 65
170
Stiffness to Weight: Axial, points 6.9
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.1
16
Strength to Weight: Bending, points 10
17
Thermal Diffusivity, mm2/s 22
29
Thermal Shock Resistance, points 9.2
16

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.1 to 0.6
Antimony (Sb), % 0 to 0.1
0 to 0.2
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.020
0
Boron (B), % 0
0 to 0.2
Cadmium (Cd), % 0 to 0.020
0
Chromium (Cr), % 0 to 0.020
0
Copper (Cu), % 84 to 88
58 to 62
Iron (Fe), % 0 to 0.3
0 to 0.5
Lead (Pb), % 0 to 3.0
0 to 0.090
Manganese (Mn), % 0
0 to 0.010
Nickel (Ni), % 0 to 0.6
0 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 0.010
0 to 0.25
Sulfur (S), % 0 to 0.040
0.1 to 0.65
Tin (Sn), % 4.0 to 6.0
0 to 1.5
Zinc (Zn), % 4.0 to 6.0
31 to 41
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.7