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C85400 Brass vs. CC496K Bronze

Both C85400 brass and CC496K 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 CC496K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
72
Elastic (Young's, Tensile) Modulus, GPa 100
97
Elongation at Break, % 23
8.6
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 40
36
Tensile Strength: Ultimate (UTS), MPa 220
210
Tensile Strength: Yield (Proof), MPa 85
99

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 940
900
Melting Onset (Solidus), °C 940
820
Specific Heat Capacity, J/kg-K 380
340
Thermal Conductivity, W/m-K 89
52
Thermal Expansion, µm/m-K 20
19

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 8.3
9.2
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 46
52
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
15
Resilience: Unit (Modulus of Resilience), kJ/m3 35
50
Stiffness to Weight: Axial, points 7.0
5.9
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 7.5
6.5
Strength to Weight: Bending, points 9.9
8.6
Thermal Diffusivity, mm2/s 28
17
Thermal Shock Resistance, points 7.6
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 65 to 70
72 to 79.5
Iron (Fe), % 0 to 0.7
0 to 0.25
Lead (Pb), % 1.5 to 3.8
13 to 17
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
0.5 to 2.0
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
6.0 to 8.0
Zinc (Zn), % 24 to 32
0 to 2.0
Residuals, % 0 to 1.1
0