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CC495K Bronze vs. CC762S Brass

Both CC495K bronze and CC762S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is CC495K bronze and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 76
210
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 7.0
7.3
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 37
43
Tensile Strength: Ultimate (UTS), MPa 240
840
Tensile Strength: Yield (Proof), MPa 120
540

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 140
160
Melting Completion (Liquidus), °C 930
920
Melting Onset (Solidus), °C 820
870
Specific Heat Capacity, J/kg-K 350
420
Thermal Conductivity, W/m-K 48
51
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
28
Electrical Conductivity: Equal Weight (Specific), % IACS 10
32

Otherwise Unclassified Properties

Base Metal Price, % relative 33
24
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 3.6
3.1
Embodied Energy, MJ/kg 58
51
Embodied Water, L/kg 400
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
54
Resilience: Unit (Modulus of Resilience), kJ/m3 68
1290
Stiffness to Weight: Axial, points 6.2
7.8
Stiffness to Weight: Bending, points 17
20
Strength to Weight: Axial, points 7.3
29
Strength to Weight: Bending, points 9.4
25
Thermal Diffusivity, mm2/s 15
15
Thermal Shock Resistance, points 8.8
27

Alloy Composition

Aluminum (Al), % 0 to 0.010
3.0 to 7.0
Antimony (Sb), % 0 to 0.5
0 to 0.030
Copper (Cu), % 76 to 82
57 to 67
Iron (Fe), % 0 to 0.25
1.5 to 4.0
Lead (Pb), % 8.0 to 11
0 to 0.2
Manganese (Mn), % 0 to 0.2
2.5 to 5.0
Nickel (Ni), % 0 to 2.0
0 to 3.0
Phosphorus (P), % 0 to 0.1
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.1
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 9.0 to 11
0 to 0.2
Zinc (Zn), % 0 to 2.0
13.4 to 36