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CC496K Bronze vs. C85400 Brass

Both CC496K bronze and C85400 brass 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 CC496K bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 140
130
Melting Completion (Liquidus), °C 900
940
Melting Onset (Solidus), °C 820
940
Specific Heat Capacity, J/kg-K 340
380
Thermal Conductivity, W/m-K 52
89
Thermal Expansion, µm/m-K 19
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 31
25
Density, g/cm3 9.2
8.3
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 380
330

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.35
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 72 to 79.5
65 to 70
Iron (Fe), % 0 to 0.25
0 to 0.7
Lead (Pb), % 13 to 17
1.5 to 3.8
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0.5 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.050
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 6.0 to 8.0
0.5 to 1.5
Zinc (Zn), % 0 to 2.0
24 to 32
Residuals, % 0
0 to 1.1