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C34500 Brass vs. C87900 Brass

Both C34500 brass and C87900 brass are copper alloys. They have a very high 97% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C34500 brass and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 12 to 28
25
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 340 to 430
480
Tensile Strength: Yield (Proof), MPa 120 to 180
240

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 910
930
Melting Onset (Solidus), °C 890
900
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
15
Electrical Conductivity: Equal Weight (Specific), % IACS 29
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
100
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
270
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 12 to 15
17
Strength to Weight: Bending, points 13 to 16
17
Thermal Diffusivity, mm2/s 37
37
Thermal Shock Resistance, points 11 to 14
16

Alloy Composition


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Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 62 to 65
63 to 69.2
Iron (Fe), % 0 to 0.15
0 to 0.4
Lead (Pb), % 1.5 to 2.5
0 to 0.25
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 32 to 36.5
30 to 36
Residuals, % 0 to 0.4
0