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C99750 Brass vs. C87400 Brass

Both C99750 brass and C87400 brass are copper alloys. They have 73% 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 C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 20 to 30
21
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 48
41
Tensile Strength: Ultimate (UTS), MPa 450 to 520
390
Tensile Strength: Yield (Proof), MPa 220 to 280
160

Thermal Properties

Latent Heat of Fusion, J/g 200
250
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 840
920
Melting Onset (Solidus), °C 820
820
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 51
44
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
65
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
120
Stiffness to Weight: Axial, points 8.6
7.4
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 15 to 18
13
Strength to Weight: Bending, points 16 to 18
14
Thermal Shock Resistance, points 13 to 15
14

Alloy Composition


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Aluminum (Al), % 0.25 to 3.0
0 to 0.8
Copper (Cu), % 55 to 61
79 to 85.5
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0.5 to 2.5
0 to 1.0
Manganese (Mn), % 17 to 23
0
Nickel (Ni), % 0 to 5.0
0
Silicon (Si), % 0
2.5 to 4.0
Zinc (Zn), % 17 to 23
12 to 16
Residuals, % 0 to 0.3
0 to 0.8