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C99700 Brass vs. CC381H Copper-nickel

Both C99700 brass and CC381H copper-nickel are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
140
Elongation at Break, % 25
20
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 46
52
Tensile Strength: Ultimate (UTS), MPa 380
380
Tensile Strength: Yield (Proof), MPa 170
140

Thermal Properties

Latent Heat of Fusion, J/g 200
240
Maximum Temperature: Mechanical, °C 160
260
Melting Completion (Liquidus), °C 900
1180
Melting Onset (Solidus), °C 880
1120
Specific Heat Capacity, J/kg-K 410
410
Thermal Expansion, µm/m-K 20
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
40
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 3.3
5.0
Embodied Energy, MJ/kg 53
73
Embodied Water, L/kg 320
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
60
Resilience: Unit (Modulus of Resilience), kJ/m3 120
68
Stiffness to Weight: Axial, points 8.3
8.6
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13
12
Strength to Weight: Bending, points 14
13
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 54 to 65.5
64.5 to 69.9
Iron (Fe), % 0 to 1.0
0.5 to 1.5
Lead (Pb), % 0 to 2.0
0 to 0.030
Manganese (Mn), % 11 to 15
0.6 to 1.2
Nickel (Ni), % 4.0 to 6.0
29 to 31
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19 to 25
0 to 0.5
Residuals, % 0 to 0.3
0