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C85400 Brass vs. C68400 Brass

Both C85400 brass and C68400 brass are copper alloys. They have a moderately high 91% 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 C85400 brass and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
150
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
18
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 220
540
Tensile Strength: Yield (Proof), MPa 85
310

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 940
840
Melting Onset (Solidus), °C 940
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 89
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 25
23
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
81
Resilience: Unit (Modulus of Resilience), kJ/m3 35
460
Stiffness to Weight: Axial, points 7.0
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 7.5
19
Strength to Weight: Bending, points 9.9
19
Thermal Diffusivity, mm2/s 28
21
Thermal Shock Resistance, points 7.6
18

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 65 to 70
59 to 64
Iron (Fe), % 0 to 0.7
0 to 1.0
Lead (Pb), % 1.5 to 3.8
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.050
1.5 to 2.5
Tin (Sn), % 0.5 to 1.5
0 to 0.5
Zinc (Zn), % 24 to 32
28.6 to 39.3
Residuals, % 0
0 to 0.5