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CC381H Copper-nickel vs. CC763S Brass

Both CC381H copper-nickel and CC763S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 65% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is CC763S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
130
Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 20
7.3
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 52
41
Tensile Strength: Ultimate (UTS), MPa 380
490
Tensile Strength: Yield (Proof), MPa 140
270

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 260
140
Melting Completion (Liquidus), °C 1180
870
Melting Onset (Solidus), °C 1120
830
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 16
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
29
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
32

Otherwise Unclassified Properties

Base Metal Price, % relative 40
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.0
2.9
Embodied Energy, MJ/kg 73
49
Embodied Water, L/kg 280
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
30
Resilience: Unit (Modulus of Resilience), kJ/m3 68
340
Stiffness to Weight: Axial, points 8.6
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 12
17
Strength to Weight: Bending, points 13
17
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 0 to 0.010
1.0 to 2.5
Antimony (Sb), % 0
0 to 0.080
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 64.5 to 69.9
56.5 to 67
Iron (Fe), % 0.5 to 1.5
0.5 to 2.0
Lead (Pb), % 0 to 0.030
0 to 1.5
Manganese (Mn), % 0.6 to 1.2
1.0 to 3.5
Nickel (Ni), % 29 to 31
0 to 2.5
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.5
18.9 to 41