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C87900 Brass vs. C85400 Brass

Both C87900 brass and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 95% 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 C87900 brass and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 25
23
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 480
220
Tensile Strength: Yield (Proof), MPa 240
85

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 930
940
Melting Onset (Solidus), °C 900
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
89
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
20
Electrical Conductivity: Equal Weight (Specific), % IACS 17
22

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
40
Resilience: Unit (Modulus of Resilience), kJ/m3 270
35
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 17
7.5
Strength to Weight: Bending, points 17
9.9
Thermal Diffusivity, mm2/s 37
28
Thermal Shock Resistance, points 16
7.6

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 0.35
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
65 to 70
Iron (Fe), % 0 to 0.4
0 to 0.7
Lead (Pb), % 0 to 0.25
1.5 to 3.8
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0.5 to 1.5
Zinc (Zn), % 30 to 36
24 to 32
Residuals, % 0
0 to 1.1