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CC752S Brass vs. CC492K Bronze

Both CC752S brass and CC492K bronze 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 CC752S brass and the bottom bar is CC492K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
78
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 8.4
14
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 350
280
Tensile Strength: Yield (Proof), MPa 190
150

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 840
1000
Melting Onset (Solidus), °C 800
900
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 110
73
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
13
Electrical Conductivity: Equal Weight (Specific), % IACS 28
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
33
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 46
54
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
33
Resilience: Unit (Modulus of Resilience), kJ/m3 180
100
Stiffness to Weight: Axial, points 7.1
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
8.7
Strength to Weight: Bending, points 13
11
Thermal Diffusivity, mm2/s 35
23
Thermal Shock Resistance, points 12
10

Alloy Composition

Aluminum (Al), % 0.3 to 0.7
0 to 0.010
Antimony (Sb), % 0 to 0.14
0 to 0.25
Arsenic (As), % 0.040 to 0.14
0
Copper (Cu), % 61.5 to 64.5
83 to 89
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 1.5 to 2.2
2.5 to 3.5
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.020
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 0.3
6.0 to 8.0
Zinc (Zn), % 31.5 to 36.7
1.5 to 3.0