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C87800 Brass vs. C85700 Brass

Both C87800 brass and C85700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% 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 C87800 brass and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 25
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 590
310
Tensile Strength: Yield (Proof), MPa 350
110

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 920
940
Melting Onset (Solidus), °C 820
910
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 28
84
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
22
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
25

Otherwise Unclassified Properties

Base Metal Price, % relative 27
24
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 300
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
41
Resilience: Unit (Modulus of Resilience), kJ/m3 540
59
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 20
11
Strength to Weight: Bending, points 19
13
Thermal Diffusivity, mm2/s 8.3
27
Thermal Shock Resistance, points 21
10

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.8
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 80 to 84.2
58 to 64
Iron (Fe), % 0 to 0.15
0 to 0.7
Lead (Pb), % 0 to 0.15
0.8 to 1.5
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.2
0 to 1.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 3.8 to 4.2
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0.5 to 1.5
Zinc (Zn), % 12 to 16
32 to 40
Residuals, % 0
0 to 1.3