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C87900 Brass vs. C85500 Brass

Both C87900 brass and C85500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 94% of their average alloy composition in common. There are 29 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 C87900 brass and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 25
40
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 70
55
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 480
410
Tensile Strength: Yield (Proof), MPa 240
160

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 270
120
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
14
Strength to Weight: Bending, points 17
15
Thermal Diffusivity, mm2/s 37
38
Thermal Shock Resistance, points 16
14

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
59 to 63
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 0 to 0.25
0 to 0.2
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 0.2
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 30 to 36
35.1 to 41
Residuals, % 0
0 to 0.9