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CC767S Brass vs. C94900 Bronze

Both CC767S brass and C94900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 67% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is CC767S brass and the bottom bar is C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 34
17
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 430
300
Tensile Strength: Yield (Proof), MPa 150
130

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 840
980
Melting Onset (Solidus), °C 790
910
Specific Heat Capacity, J/kg-K 390
370
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
14
Electrical Conductivity: Equal Weight (Specific), % IACS 36
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
32
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 47
55
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
41
Resilience: Unit (Modulus of Resilience), kJ/m3 100
72
Stiffness to Weight: Axial, points 7.3
6.9
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 15
9.4
Strength to Weight: Bending, points 16
11
Thermal Shock Resistance, points 14
11

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 58 to 64
79 to 81
Iron (Fe), % 0 to 0.5
0 to 0.3
Lead (Pb), % 0 to 0.1
4.0 to 6.0
Manganese (Mn), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.1
4.0 to 6.0
Zinc (Zn), % 32.8 to 41.9
4.0 to 6.0
Residuals, % 0
0 to 0.8