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CC497K Bronze vs. CC750S Brass

Both CC497K bronze and CC750S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is CC497K bronze and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
54
Elastic (Young's, Tensile) Modulus, GPa 93
110
Elongation at Break, % 6.7
13
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 34
40
Tensile Strength: Ultimate (UTS), MPa 190
200
Tensile Strength: Yield (Proof), MPa 91
80

Thermal Properties

Latent Heat of Fusion, J/g 160
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 870
860
Melting Onset (Solidus), °C 800
810
Specific Heat Capacity, J/kg-K 330
380
Thermal Conductivity, W/m-K 53
110
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
26

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 9.3
8.2
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 48
46
Embodied Water, L/kg 370
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
22
Resilience: Unit (Modulus of Resilience), kJ/m3 45
30
Stiffness to Weight: Axial, points 5.5
7.1
Stiffness to Weight: Bending, points 16
19
Strength to Weight: Axial, points 5.6
6.8
Strength to Weight: Bending, points 7.8
9.3
Thermal Diffusivity, mm2/s 17
35
Thermal Shock Resistance, points 7.2
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.1
Antimony (Sb), % 0 to 0.75
0
Copper (Cu), % 67.5 to 77.5
62 to 67
Iron (Fe), % 0 to 0.25
0 to 0.8
Lead (Pb), % 18 to 23
1.0 to 3.0
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0.5 to 2.5
0 to 1.0
Phosphorus (P), % 0 to 0.1
0 to 0.050
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 to 1.5
Zinc (Zn), % 0 to 2.0
26.3 to 36