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C69710 Brass vs. C72500 Copper-nickel

Both C69710 brass and C72500 copper-nickel are copper alloys. They have 78% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C69710 brass and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
45
Tensile Strength: Ultimate (UTS), MPa 470
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 240
210
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 930
1130
Melting Onset (Solidus), °C 880
1060
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 40
54
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 26
35
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 44
55
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
13 to 24
Strength to Weight: Bending, points 16
14 to 21
Thermal Diffusivity, mm2/s 12
16
Thermal Shock Resistance, points 16
14 to 27

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
85.2 to 89.7
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0.5 to 1.5
0 to 0.050
Manganese (Mn), % 0 to 0.4
0 to 0.2
Nickel (Ni), % 0
8.5 to 10.5
Silicon (Si), % 2.5 to 3.5
0
Tin (Sn), % 0
1.8 to 2.8
Zinc (Zn), % 13.8 to 22
0 to 0.5
Residuals, % 0
0 to 0.2