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C86700 Bronze vs. C84500 Brass

Both C86700 bronze and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C86700 bronze and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 630
240
Tensile Strength: Yield (Proof), MPa 250
97

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 880
980
Melting Onset (Solidus), °C 860
840
Specific Heat Capacity, J/kg-K 400
360
Thermal Conductivity, W/m-K 89
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
16
Electrical Conductivity: Equal Weight (Specific), % IACS 19
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
28
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 49
47
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
54
Resilience: Unit (Modulus of Resilience), kJ/m3 290
45
Stiffness to Weight: Axial, points 7.5
6.6
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 22
7.7
Strength to Weight: Bending, points 21
9.8
Thermal Diffusivity, mm2/s 28
23
Thermal Shock Resistance, points 21
8.6

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 55 to 60
77 to 79
Iron (Fe), % 1.0 to 3.0
0 to 0.4
Lead (Pb), % 0.5 to 1.5
6.0 to 7.5
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 1.5
2.0 to 4.0
Zinc (Zn), % 30 to 38
10 to 14
Residuals, % 0
0 to 0.7