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C87900 Brass vs. C93200 Bronze

Both C87900 brass and C93200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common. There are 29 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 C87900 brass and the bottom bar is C93200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 25
20
Poisson's Ratio 0.31
0.35
Rockwell B Hardness 70
65
Shear Modulus, GPa 41
38
Tensile Strength: Ultimate (UTS), MPa 480
240
Tensile Strength: Yield (Proof), MPa 240
130

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 930
980
Melting Onset (Solidus), °C 900
850
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
12
Electrical Conductivity: Equal Weight (Specific), % IACS 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
32
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.7
3.2
Embodied Energy, MJ/kg 46
52
Embodied Water, L/kg 320
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
40
Resilience: Unit (Modulus of Resilience), kJ/m3 270
76
Stiffness to Weight: Axial, points 7.3
6.5
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 17
7.5
Strength to Weight: Bending, points 17
9.7
Thermal Diffusivity, mm2/s 37
18
Thermal Shock Resistance, points 16
9.3

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.35
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
81 to 85
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 0 to 0.25
6.0 to 8.0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 0.010
0 to 1.5
Silicon (Si), % 0.8 to 1.2
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.080
Tin (Sn), % 0 to 0.25
6.3 to 7.5
Zinc (Zn), % 30 to 36
2.0 to 4.0
Residuals, % 0
0 to 1.0