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C85400 Brass vs. CC762S Brass

Both C85400 brass and CC762S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
210
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
7.3
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 220
840
Tensile Strength: Yield (Proof), MPa 85
540

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 940
920
Melting Onset (Solidus), °C 940
870
Specific Heat Capacity, J/kg-K 380
420
Thermal Conductivity, W/m-K 89
51
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
28
Electrical Conductivity: Equal Weight (Specific), % IACS 22
32

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
54
Resilience: Unit (Modulus of Resilience), kJ/m3 35
1290
Stiffness to Weight: Axial, points 7.0
7.8
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 7.5
29
Strength to Weight: Bending, points 9.9
25
Thermal Diffusivity, mm2/s 28
15
Thermal Shock Resistance, points 7.6
27

Alloy Composition

Aluminum (Al), % 0 to 0.35
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Copper (Cu), % 65 to 70
57 to 67
Iron (Fe), % 0 to 0.7
1.5 to 4.0
Lead (Pb), % 1.5 to 3.8
0 to 0.2
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0 to 1.0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.050
0 to 0.1
Tin (Sn), % 0.5 to 1.5
0 to 0.2
Zinc (Zn), % 24 to 32
13.4 to 36
Residuals, % 0 to 1.1
0