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C84500 Brass vs. C90300 Bronze

Both C84500 brass and C90300 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% 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 C84500 brass and the bottom bar is C90300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
22
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
41
Tensile Strength: Ultimate (UTS), MPa 240
330
Tensile Strength: Yield (Proof), MPa 97
150

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 980
1000
Melting Onset (Solidus), °C 840
850
Specific Heat Capacity, J/kg-K 360
370
Thermal Conductivity, W/m-K 72
75
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
12
Electrical Conductivity: Equal Weight (Specific), % IACS 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 28
33
Density, g/cm3 8.7
8.7
Embodied Carbon, kg CO2/kg material 2.9
3.4
Embodied Energy, MJ/kg 47
56
Embodied Water, L/kg 340
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
59
Resilience: Unit (Modulus of Resilience), kJ/m3 45
110
Stiffness to Weight: Axial, points 6.6
7.0
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.7
11
Strength to Weight: Bending, points 9.8
12
Thermal Diffusivity, mm2/s 23
23
Thermal Shock Resistance, points 8.6
12

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.2
Copper (Cu), % 77 to 79
86 to 89
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 6.0 to 7.5
0 to 0.3
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 2.0 to 4.0
7.5 to 9.0
Zinc (Zn), % 10 to 14
3.0 to 5.0
Residuals, % 0
0 to 0.6