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C34200 Brass vs. C70700 Copper-nickel

Both C34200 brass and C70700 copper-nickel are copper alloys. They have 64% of their average alloy composition in common. There are 29 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 C34200 brass and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 3.0 to 17
39
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
46
Shear Strength, MPa 230 to 360
220
Tensile Strength: Ultimate (UTS), MPa 370 to 650
320
Tensile Strength: Yield (Proof), MPa 150 to 420
110

Thermal Properties

Latent Heat of Fusion, J/g 170
220
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 910
1120
Melting Onset (Solidus), °C 890
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
11
Electrical Conductivity: Equal Weight (Specific), % IACS 29
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
34
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 45
52
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 98
100
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 870
51
Stiffness to Weight: Axial, points 7.1
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 22
10
Strength to Weight: Bending, points 14 to 20
12
Thermal Diffusivity, mm2/s 37
17
Thermal Shock Resistance, points 12 to 22
12

Alloy Composition

Copper (Cu), % 62 to 65
88.5 to 90.5
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
9.5 to 10.5
Zinc (Zn), % 32 to 36.5
0
Residuals, % 0
0 to 0.5