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CC494K Bronze vs. CC751S Brass

Both CC494K bronze and CC751S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is CC494K bronze and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
130
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 7.6
5.6
Poisson's Ratio 0.35
0.31
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 210
450
Tensile Strength: Yield (Proof), MPa 94
320

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 970
850
Melting Onset (Solidus), °C 890
810
Specific Heat Capacity, J/kg-K 360
390
Thermal Conductivity, W/m-K 63
110
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
25
Electrical Conductivity: Equal Weight (Specific), % IACS 16
28

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 9.1
8.1
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
23
Resilience: Unit (Modulus of Resilience), kJ/m3 43
480
Stiffness to Weight: Axial, points 6.4
7.2
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 6.5
15
Strength to Weight: Bending, points 8.8
16
Thermal Diffusivity, mm2/s 19
35
Thermal Shock Resistance, points 7.8
15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.1
Antimony (Sb), % 0 to 0.5
0 to 0.5
Copper (Cu), % 78 to 87
62.7 to 66
Iron (Fe), % 0 to 0.25
0.25 to 0.5
Lead (Pb), % 8.0 to 10
0.8 to 2.2
Manganese (Mn), % 0 to 0.2
0 to 0.15
Nickel (Ni), % 0 to 2.0
0 to 0.8
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0.65 to 1.1
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0 to 0.8
Zinc (Zn), % 0 to 2.0
27.9 to 35.6