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C38000 Brass vs. C70400 Copper-nickel

Both C38000 brass and C70400 copper-nickel are copper alloys. They have 58% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
45
Tensile Strength: Ultimate (UTS), MPa 380
300 to 310
Tensile Strength: Yield (Proof), MPa 120
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 110
210
Melting Completion (Liquidus), °C 800
1120
Melting Onset (Solidus), °C 760
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 110
64
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
32
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 74
38 to 220
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
9.3 to 9.8
Strength to Weight: Bending, points 14
11 to 12
Thermal Diffusivity, mm2/s 37
18
Thermal Shock Resistance, points 13
10 to 11

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 55 to 60
89.8 to 93.6
Iron (Fe), % 0 to 0.35
1.3 to 1.7
Lead (Pb), % 1.5 to 2.5
0 to 0.050
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0
4.8 to 6.2
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5