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C85900 Brass vs. CC750S Brass

Both C85900 brass and CC750S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is C85900 brass and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
54
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 30
13
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 460
200
Tensile Strength: Yield (Proof), MPa 190
80

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 830
860
Melting Onset (Solidus), °C 790
810
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
24
Electrical Conductivity: Equal Weight (Specific), % IACS 28
26

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
22
Resilience: Unit (Modulus of Resilience), kJ/m3 170
30
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 16
6.8
Strength to Weight: Bending, points 17
9.3
Thermal Diffusivity, mm2/s 29
35
Thermal Shock Resistance, points 16
6.7

Alloy Composition

Aluminum (Al), % 0.1 to 0.6
0 to 0.1
Antimony (Sb), % 0 to 0.2
0
Boron (B), % 0 to 0.2
0
Copper (Cu), % 58 to 62
62 to 67
Iron (Fe), % 0 to 0.5
0 to 0.8
Lead (Pb), % 0 to 0.090
1.0 to 3.0
Manganese (Mn), % 0 to 0.010
0 to 0.2
Nickel (Ni), % 0 to 1.5
0 to 1.0
Phosphorus (P), % 0 to 0.010
0 to 0.050
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 1.5
Zinc (Zn), % 31 to 41
26.3 to 36
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.7
0