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C85800 Brass vs. C68400 Brass

Both C85800 brass and C68400 brass are copper alloys. They have a very high 97% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C85800 brass and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15
18
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 380
540
Tensile Strength: Yield (Proof), MPa 210
310

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 900
840
Melting Onset (Solidus), °C 870
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 84
66
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
87
Electrical Conductivity: Equal Weight (Specific), % IACS 22
99

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
81
Resilience: Unit (Modulus of Resilience), kJ/m3 210
460
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
19
Strength to Weight: Bending, points 15
19
Thermal Diffusivity, mm2/s 27
21
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0 to 0.55
0 to 0.5
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 57 to 69
59 to 64
Iron (Fe), % 0 to 0.5
0 to 1.0
Lead (Pb), % 0 to 1.5
0 to 0.090
Manganese (Mn), % 0 to 0.25
0.2 to 1.5
Nickel (Ni), % 0 to 0.5
0 to 0.5
Phosphorus (P), % 0 to 0.010
0.030 to 0.3
Silicon (Si), % 0 to 0.25
1.5 to 2.5
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 1.5
0 to 0.5
Zinc (Zn), % 31 to 41
28.6 to 39.3
Residuals, % 0
0 to 0.5