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CC494K Bronze vs. C85400 Brass

Both CC494K 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 CC494K bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
55
Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 7.6
23
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 210
220
Tensile Strength: Yield (Proof), MPa 94
85

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 970
940
Melting Onset (Solidus), °C 890
940
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 63
89
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
20
Electrical Conductivity: Equal Weight (Specific), % IACS 16
22

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 9.1
8.3
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 50
46
Embodied Water, L/kg 360
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
40
Resilience: Unit (Modulus of Resilience), kJ/m3 43
35
Stiffness to Weight: Axial, points 6.4
7.0
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.5
7.5
Strength to Weight: Bending, points 8.8
9.9
Thermal Diffusivity, mm2/s 19
28
Thermal Shock Resistance, points 7.8
7.6

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.35
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 78 to 87
65 to 70
Iron (Fe), % 0 to 0.25
0 to 0.7
Lead (Pb), % 8.0 to 10
1.5 to 3.8
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 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), % 4.0 to 6.0
0.5 to 1.5
Zinc (Zn), % 0 to 2.0
24 to 32
Residuals, % 0
0 to 1.1