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C85400 Brass vs. CC750S Brass

Both C85400 brass and CC750S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
54
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
13
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 220
200
Tensile Strength: Yield (Proof), MPa 85
80

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 940
860
Melting Onset (Solidus), °C 940
810
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
24
Electrical Conductivity: Equal Weight (Specific), % IACS 22
26

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
22
Resilience: Unit (Modulus of Resilience), kJ/m3 35
30
Stiffness to Weight: Axial, points 7.0
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 7.5
6.8
Strength to Weight: Bending, points 9.9
9.3
Thermal Diffusivity, mm2/s 28
35
Thermal Shock Resistance, points 7.6
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.1
Copper (Cu), % 65 to 70
62 to 67
Iron (Fe), % 0 to 0.7
0 to 0.8
Lead (Pb), % 1.5 to 3.8
1.0 to 3.0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.050
0 to 0.050
Tin (Sn), % 0.5 to 1.5
0 to 1.5
Zinc (Zn), % 24 to 32
26.3 to 36
Residuals, % 0 to 1.1
0