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C87900 Brass vs. C85200 Brass

Both C87900 brass and C85200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 90% 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 C87900 brass and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
28
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 480
270
Tensile Strength: Yield (Proof), MPa 240
95

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 930
940
Melting Onset (Solidus), °C 900
930
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
84
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
18
Electrical Conductivity: Equal Weight (Specific), % IACS 17
19

Otherwise Unclassified Properties

Base Metal Price, % relative 24
26
Density, g/cm3 8.1
8.4
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
59
Resilience: Unit (Modulus of Resilience), kJ/m3 270
42
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 17
8.9
Strength to Weight: Bending, points 17
11
Thermal Diffusivity, mm2/s 37
27
Thermal Shock Resistance, points 16
9.3

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.2
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
70 to 74
Iron (Fe), % 0 to 0.4
0 to 0.6
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 to 0.020
Silicon (Si), % 0.8 to 1.2
0 to 0.050
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 0 to 0.25
0.7 to 2.0
Zinc (Zn), % 30 to 36
20 to 27
Residuals, % 0
0 to 0.9