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C84000 Brass vs. C87400 Brass

Both C84000 brass and C87400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% 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 C84000 brass and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 27
21
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 250
390
Tensile Strength: Yield (Proof), MPa 140
160

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1040
920
Melting Onset (Solidus), °C 940
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 72
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 17
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
27
Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
65
Resilience: Unit (Modulus of Resilience), kJ/m3 83
120
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.2
13
Strength to Weight: Bending, points 10
14
Thermal Diffusivity, mm2/s 22
8.3
Thermal Shock Resistance, points 9.0
14

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.8
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
79 to 85.5
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 0 to 0.090
0 to 1.0
Manganese (Mn), % 0 to 0.010
0
Nickel (Ni), % 0.5 to 2.0
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
2.5 to 4.0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0
Zinc (Zn), % 5.0 to 14
12 to 16
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.8