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C68100 Brass vs. C92800 Bronze

Both C68100 brass and C92800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68100 brass and the bottom bar is C92800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 29
1.0
Poisson's Ratio 0.3
0.35
Shear Modulus, GPa 40
37
Tensile Strength: Ultimate (UTS), MPa 380
280
Tensile Strength: Yield (Proof), MPa 140
210

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 890
960
Melting Onset (Solidus), °C 870
820
Specific Heat Capacity, J/kg-K 390
350
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 27
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
36
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 2.8
4.1
Embodied Energy, MJ/kg 47
67
Embodied Water, L/kg 330
430

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
2.5
Resilience: Unit (Modulus of Resilience), kJ/m3 94
210
Stiffness to Weight: Axial, points 7.3
6.4
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 13
8.8
Strength to Weight: Bending, points 15
11
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 56 to 60
78 to 82
Iron (Fe), % 0.25 to 1.3
0 to 0.2
Lead (Pb), % 0 to 0.050
4.0 to 6.0
Manganese (Mn), % 0.010 to 0.5
0
Nickel (Ni), % 0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0.040 to 0.15
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0.75 to 1.1
15 to 17
Zinc (Zn), % 36.4 to 43
0 to 0.8
Residuals, % 0
0 to 0.7