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C85900 Brass vs. CC755S Brass

Both C85900 brass and CC755S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is C85900 brass and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
110
Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 30
9.5
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 460
390
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 830
820
Melting Onset (Solidus), °C 790
780
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 89
120
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 28
30

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
33
Resilience: Unit (Modulus of Resilience), kJ/m3 170
290
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 16
14
Strength to Weight: Bending, points 17
15
Thermal Diffusivity, mm2/s 29
38
Thermal Shock Resistance, points 16
13

Alloy Composition

Aluminum (Al), % 0.1 to 0.6
0.4 to 0.7
Antimony (Sb), % 0 to 0.2
0
Boron (B), % 0 to 0.2
0
Copper (Cu), % 58 to 62
59.5 to 61
Iron (Fe), % 0 to 0.5
0.050 to 0.2
Lead (Pb), % 0 to 0.090
1.2 to 1.7
Manganese (Mn), % 0 to 0.010
0 to 0.050
Nickel (Ni), % 0 to 1.5
0 to 0.2
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.25
0 to 0.050
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 0 to 1.5
0 to 0.3
Zinc (Zn), % 31 to 41
35.8 to 38.9
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.7
0