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C86800 Bronze vs. C68100 Brass

Both C86800 bronze and C68100 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 91% 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 C86800 bronze and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 22
29
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 570
380
Tensile Strength: Yield (Proof), MPa 260
140

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 140
120
Melting Completion (Liquidus), °C 900
890
Melting Onset (Solidus), °C 880
870
Specific Heat Capacity, J/kg-K 400
390
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
24
Electrical Conductivity: Equal Weight (Specific), % IACS 10
27

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 51
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
86
Resilience: Unit (Modulus of Resilience), kJ/m3 310
94
Stiffness to Weight: Axial, points 7.7
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 20
13
Strength to Weight: Bending, points 19
15
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0 to 2.0
0 to 0.010
Copper (Cu), % 53.5 to 57
56 to 60
Iron (Fe), % 1.0 to 2.5
0.25 to 1.3
Lead (Pb), % 0 to 0.2
0 to 0.050
Manganese (Mn), % 2.5 to 4.0
0.010 to 0.5
Nickel (Ni), % 2.5 to 4.0
0
Silicon (Si), % 0
0.040 to 0.15
Tin (Sn), % 0 to 1.0
0.75 to 1.1
Zinc (Zn), % 28.3 to 40.5
36.4 to 43
Residuals, % 0
0 to 0.5