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C85400 Brass vs. CC497K Bronze

Both C85400 brass and CC497K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 73% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is CC497K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
55
Elastic (Young's, Tensile) Modulus, GPa 100
93
Elongation at Break, % 23
6.7
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
34
Tensile Strength: Ultimate (UTS), MPa 220
190
Tensile Strength: Yield (Proof), MPa 85
91

Thermal Properties

Latent Heat of Fusion, J/g 180
160
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 940
870
Melting Onset (Solidus), °C 940
800
Specific Heat Capacity, J/kg-K 380
330
Thermal Conductivity, W/m-K 89
53
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 22
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
9.3
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
10
Resilience: Unit (Modulus of Resilience), kJ/m3 35
45
Stiffness to Weight: Axial, points 7.0
5.5
Stiffness to Weight: Bending, points 19
16
Strength to Weight: Axial, points 7.5
5.6
Strength to Weight: Bending, points 9.9
7.8
Thermal Diffusivity, mm2/s 28
17
Thermal Shock Resistance, points 7.6
7.2

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.010
Antimony (Sb), % 0
0 to 0.75
Copper (Cu), % 65 to 70
67.5 to 77.5
Iron (Fe), % 0 to 0.7
0 to 0.25
Lead (Pb), % 1.5 to 3.8
18 to 23
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
0.5 to 2.5
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.050
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0.5 to 1.5
4.0 to 6.0
Zinc (Zn), % 24 to 32
0 to 2.0
Residuals, % 0 to 1.1
0