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C85200 Brass vs. C68400 Brass

Both C85200 brass and C68400 brass are copper alloys. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C85200 brass and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
18
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 270
540
Tensile Strength: Yield (Proof), MPa 95
310

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
130
Melting Completion (Liquidus), °C 940
840
Melting Onset (Solidus), °C 930
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 18
87
Electrical Conductivity: Equal Weight (Specific), % IACS 19
99

Otherwise Unclassified Properties

Base Metal Price, % relative 26
23
Density, g/cm3 8.4
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 59
81
Resilience: Unit (Modulus of Resilience), kJ/m3 42
460
Stiffness to Weight: Axial, points 7.0
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 8.9
19
Strength to Weight: Bending, points 11
19
Thermal Diffusivity, mm2/s 27
21
Thermal Shock Resistance, points 9.3
18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.5
Antimony (Sb), % 0 to 0.2
0
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 70 to 74
59 to 64
Iron (Fe), % 0 to 0.6
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 to 0.020
0.030 to 0.3
Silicon (Si), % 0 to 0.050
1.5 to 2.5
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0.7 to 2.0
0 to 0.5
Zinc (Zn), % 20 to 27
28.6 to 39.3
Residuals, % 0
0 to 0.5