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C68800 Brass vs. C85200 Brass

Both C68800 brass and C85200 brass are copper alloys. They have a very high 95% 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 C68800 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, % 2.0 to 36
28
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 570 to 890
270
Tensile Strength: Yield (Proof), MPa 390 to 790
95

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
140
Melting Completion (Liquidus), °C 960
940
Melting Onset (Solidus), °C 950
930
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 40
84
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
18
Electrical Conductivity: Equal Weight (Specific), % IACS 20
19

Otherwise Unclassified Properties

Base Metal Price, % relative 26
26
Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 48
46
Embodied Water, L/kg 350
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
59
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 2860
42
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 30
8.9
Strength to Weight: Bending, points 19 to 25
11
Thermal Diffusivity, mm2/s 12
27
Thermal Shock Resistance, points 19 to 30
9.3

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
70 to 74
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0 to 0.050
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0.7 to 2.0
Zinc (Zn), % 21.3 to 24.1
20 to 27
Residuals, % 0
0 to 0.9