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C99750 Brass vs. C87700 Bronze

Both C99750 brass and C87700 bronze are copper alloys. They have 67% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C99750 brass and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 20 to 30
3.6
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 48
42
Tensile Strength: Ultimate (UTS), MPa 450 to 520
300
Tensile Strength: Yield (Proof), MPa 220 to 280
120

Thermal Properties

Latent Heat of Fusion, J/g 200
250
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 840
980
Melting Onset (Solidus), °C 820
900
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
45
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
48

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 51
45
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
64
Stiffness to Weight: Axial, points 8.6
7.4
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 15 to 18
9.8
Strength to Weight: Bending, points 16 to 18
12
Thermal Shock Resistance, points 13 to 15
11

Alloy Composition


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Aluminum (Al), % 0.25 to 3.0
0
Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 55 to 61
87.5 to 90.5
Iron (Fe), % 0 to 1.0
0 to 0.5
Lead (Pb), % 0.5 to 2.5
0 to 0.090
Manganese (Mn), % 17 to 23
0 to 0.8
Nickel (Ni), % 0 to 5.0
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 17 to 23
7.0 to 9.0
Residuals, % 0 to 0.3
0 to 0.8