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C85200 Brass vs. C96400 Copper-nickel

Both C85200 brass and C96400 copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is C85200 brass and the bottom bar is C96400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 28
25
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
51
Tensile Strength: Ultimate (UTS), MPa 270
490
Tensile Strength: Yield (Proof), MPa 95
260

Thermal Properties

Latent Heat of Fusion, J/g 180
240
Maximum Temperature: Mechanical, °C 140
260
Melting Completion (Liquidus), °C 940
1240
Melting Onset (Solidus), °C 930
1170
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 84
28
Thermal Expansion, µm/m-K 20
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 19
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 26
45
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 2.8
5.9
Embodied Energy, MJ/kg 46
87
Embodied Water, L/kg 330
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
100
Resilience: Unit (Modulus of Resilience), kJ/m3 42
250
Stiffness to Weight: Axial, points 7.0
8.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.9
15
Strength to Weight: Bending, points 11
16
Thermal Diffusivity, mm2/s 27
7.8
Thermal Shock Resistance, points 9.3
17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 70 to 74
62.3 to 71.3
Iron (Fe), % 0 to 0.6
0.25 to 1.5
Lead (Pb), % 1.5 to 3.8
0 to 0.010
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 1.0
28 to 32
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.050
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.020
Tin (Sn), % 0.7 to 2.0
0
Zinc (Zn), % 20 to 27
0
Residuals, % 0
0 to 0.5