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CC497K Bronze vs. C84500 Brass

Both CC497K bronze and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is CC497K bronze and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
55
Elastic (Young's, Tensile) Modulus, GPa 93
100
Elongation at Break, % 6.7
28
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 34
39
Tensile Strength: Ultimate (UTS), MPa 190
240
Tensile Strength: Yield (Proof), MPa 91
97

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 870
980
Melting Onset (Solidus), °C 800
840
Specific Heat Capacity, J/kg-K 330
360
Thermal Conductivity, W/m-K 53
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
28
Density, g/cm3 9.3
8.7
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 48
47
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
54
Resilience: Unit (Modulus of Resilience), kJ/m3 45
45
Stiffness to Weight: Axial, points 5.5
6.6
Stiffness to Weight: Bending, points 16
18
Strength to Weight: Axial, points 5.6
7.7
Strength to Weight: Bending, points 7.8
9.8
Thermal Diffusivity, mm2/s 17
23
Thermal Shock Resistance, points 7.2
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0050
Antimony (Sb), % 0 to 0.75
0 to 0.25
Copper (Cu), % 67.5 to 77.5
77 to 79
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 18 to 23
6.0 to 7.5
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0.5 to 2.5
0 to 1.0
Phosphorus (P), % 0 to 0.1
0 to 0.020
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0 to 0.1
0 to 0.080
Tin (Sn), % 4.0 to 6.0
2.0 to 4.0
Zinc (Zn), % 0 to 2.0
10 to 14
Residuals, % 0
0 to 0.7