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C83400 Brass vs. C90900 Bronze

Both C83400 brass and C90900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 89% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C83400 brass and the bottom bar is C90900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 30
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 240
280
Tensile Strength: Yield (Proof), MPa 69
140

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 1040
980
Melting Onset (Solidus), °C 1020
820
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 190
65
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
11
Electrical Conductivity: Equal Weight (Specific), % IACS 46
11

Otherwise Unclassified Properties

Base Metal Price, % relative 29
36
Density, g/cm3 8.7
8.7
Embodied Carbon, kg CO2/kg material 2.7
3.9
Embodied Energy, MJ/kg 43
64
Embodied Water, L/kg 320
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
35
Resilience: Unit (Modulus of Resilience), kJ/m3 21
89
Stiffness to Weight: Axial, points 7.2
6.8
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 7.7
8.8
Strength to Weight: Bending, points 9.9
11
Thermal Diffusivity, mm2/s 57
21
Thermal Shock Resistance, points 8.4
10

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.2
Copper (Cu), % 88 to 92
86 to 89
Iron (Fe), % 0 to 0.25
0 to 0.15
Lead (Pb), % 0 to 0.5
0 to 0.25
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 0 to 0.2
12 to 14
Zinc (Zn), % 8.0 to 12
0 to 0.25
Residuals, % 0
0 to 0.6