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CC497K Bronze vs. CC752S Brass

Both CC497K bronze and CC752S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is CC497K bronze and the bottom bar is CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
100
Elastic (Young's, Tensile) Modulus, GPa 93
100
Elongation at Break, % 6.7
8.4
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 34
40
Tensile Strength: Ultimate (UTS), MPa 190
350
Tensile Strength: Yield (Proof), MPa 91
190

Thermal Properties

Latent Heat of Fusion, J/g 160
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 870
840
Melting Onset (Solidus), °C 800
800
Specific Heat Capacity, J/kg-K 330
380
Thermal Conductivity, W/m-K 53
110
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
28

Otherwise Unclassified Properties

Base Metal Price, % relative 29
24
Density, g/cm3 9.3
8.1
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 48
46
Embodied Water, L/kg 370
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
25
Resilience: Unit (Modulus of Resilience), kJ/m3 45
180
Stiffness to Weight: Axial, points 5.5
7.1
Stiffness to Weight: Bending, points 16
19
Strength to Weight: Axial, points 5.6
12
Strength to Weight: Bending, points 7.8
13
Thermal Diffusivity, mm2/s 17
35
Thermal Shock Resistance, points 7.2
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.3 to 0.7
Antimony (Sb), % 0 to 0.75
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
Copper (Cu), % 67.5 to 77.5
61.5 to 64.5
Iron (Fe), % 0 to 0.25
0 to 0.3
Lead (Pb), % 18 to 23
1.5 to 2.2
Manganese (Mn), % 0 to 0.2
0 to 0.1
Nickel (Ni), % 0.5 to 2.5
0 to 0.2
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.020
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0 to 0.3
Zinc (Zn), % 0 to 2.0
31.5 to 36.7