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C34500 Brass vs. C87400 Brass

Both C34500 brass and C87400 brass are copper alloys. They have 78% 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 C34500 brass and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 12 to 28
21
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 340 to 430
390
Tensile Strength: Yield (Proof), MPa 120 to 180
160

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 910
920
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
28
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 29
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
27
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
65
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
120
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12 to 15
13
Strength to Weight: Bending, points 13 to 16
14
Thermal Diffusivity, mm2/s 37
8.3
Thermal Shock Resistance, points 11 to 14
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 62 to 65
79 to 85.5
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 1.5 to 2.5
0 to 1.0
Silicon (Si), % 0
2.5 to 4.0
Zinc (Zn), % 32 to 36.5
12 to 16
Residuals, % 0
0 to 0.8