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CC750S Brass vs. CC493K Bronze

Both CC750S brass and CC493K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is CC750S brass and the bottom bar is CC493K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 54
74
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
14
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 200
270
Tensile Strength: Yield (Proof), MPa 80
140

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 860
960
Melting Onset (Solidus), °C 810
880
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 110
61
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
12
Electrical Conductivity: Equal Weight (Specific), % IACS 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 46
53
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
33
Resilience: Unit (Modulus of Resilience), kJ/m3 30
89
Stiffness to Weight: Axial, points 7.1
6.5
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 6.8
8.6
Strength to Weight: Bending, points 9.3
11
Thermal Diffusivity, mm2/s 35
19
Thermal Shock Resistance, points 6.7
10

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.010
Antimony (Sb), % 0
0 to 0.3
Copper (Cu), % 62 to 67
79 to 86
Iron (Fe), % 0 to 0.8
0 to 0.2
Lead (Pb), % 1.0 to 3.0
5.0 to 8.0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 1.0
0 to 2.0
Phosphorus (P), % 0 to 0.050
0 to 0.1
Silicon (Si), % 0 to 0.050
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 1.5
5.2 to 8.0
Zinc (Zn), % 26.3 to 36
2.0 to 5.0